Pleasanton Weather
Town • San Francisco Bay Area
Pleasanton covers the southern half of the Amador Valley, from a Main Street downtown that grew up along the first transcontinental railroad to the foot of Pleasanton Ridge. The ridge, protected by the East Bay Regional Park District as a 9,090-acre park, forms the city's oak-covered western wall. To the south, I-680 leaves town over the Sunol Grade. Those two features, more than distance from the ocean, decide how quickly Pleasanton cools down on a summer evening.
Plan your week
10-Day Forecast
Hour by hour
Hourly Forecast
Current Conditions
Comfort Breakdown
Pleasanton weather today and through the year
It's 53°F at Pleasanton right now (feels like 50°F), with 3 mph wind and a comfort score of 77. Monday's forecast high at Pleasanton is 56°F, 9°F below the mid November normal of 65°F. The best window today is 9 AM to noon, at about 55°F with a 6 mph wind (comfort 66).
July is the warmest month at Pleasanton, with an average high of 87°F. December is the coldest, with an average low of 39°F. December is the wettest month (3.3 in.), out of about 17.4 in. a year. By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Pleasanton are June, September, and August. The best hours are usually 9 AM to noon in June, 9 AM to noon in September, and 9 AM to noon in August.
Pleasanton Ridge, topping out above 1,600 feet, stands between the city and the Bay side of the hills. The morning marine layer, the sheet of fog and low cloud that covers Fremont and Hayward, rarely spills over it. Cool air gets in through the low spots instead. A 2017 study of the Livermore Valley wine region's local climate traced the main routes. Cool air comes over the Dublin Grade to the northwest and over the Sunol Grade to the south, and the Sunol Grade air flows into the Amador Valley.
Forecast updated November 15, 2026 at 4:00 AM PST. Climate figures come from NOAA 1991-2020 normals. Hourly patterns come from NOAA's HRRR hourly analysis from September 2014 to April 2026.
What to expect at Pleasanton in the next few days
No active National Weather Service alerts for this location.
Best time to go
The best window today is 9 AM to noon, at about 55°F with a 6 mph wind (comfort 66).
Best day this week
Of the next 7 days, Friday looks best for Pleasanton, with a 60°F high and midday comfort near 79. Wednesday looks weakest (46).
Rain
Next good chance of rain: today (83%, about 0.17 in.).
Live weather map
Weather around Pleasanton right now
Overcast and 53° at Pleasanton right now.
About the live weather map for Pleasanton
The map centers on Pleasanton and stacks fog, satellite clouds, and precipitation radar on one view. Clouds come from the GOES-West satellite and rain from NOAA radar, and both show current conditions. Fog comes from our HRRR-based fog model, and the slider steps through its forecast for the next 12 hours.
Dots mark nearby places with their current temperature, colored by comfort score. Use the layer buttons to turn any layer off, or open the full map for every destination in the region.
Nearby Temperature Comparison
Conditions at nearby San Francisco Bay Area destinations
Tip: Bay Area temperatures can change by 20 to 30°F over a short distance because of microclimates.
Pleasanton vs nearby places
Typical summer conditions compared with Pleasanton, from the same NOAA HRRR hourly record. The list shows the closest places, then nearby places whose climate differs the most.
| Place | Distance | Summer afternoons | Morning fog | Afternoon wind | Compared with Pleasanton |
|---|---|---|---|---|---|
| Dublin | 4.3 mi | -3°F | 7% | 11 mph | windier summer afternoons (11 vs 6 mph) |
| Livermore | 6 mi | same | 6% | 8 mph | a very similar climate |
| Garin Regional Park | 8.7 mi | -11°F | 43% | 10 mph | more summer morning fog (43% vs 4% of morning hours) and about 11°F cooler on summer afternoons |
| Coyote Hills Regional Park | 13.9 mi | -23°F | 21% | 14 mph | about 23°F cooler on summer afternoons and windier summer afternoons (14 vs 6 mph) |
| Don Edwards Wildlife Refuge | 15 mi | -23°F | 18% | 16 mph | about 23°F cooler on summer afternoons and windier summer afternoons (16 vs 6 mph) |
| Foster City | 22.9 mi | -22°F | 14% | 12 mph | about 22°F cooler on summer afternoons and windier summer afternoons (12 vs 6 mph) |
Places with a climate like Pleasanton's
- Danville (13 mi away): nearly the same temperatures every month
- Concord (23 mi away): nearly the same temperatures every month
- Pleasant Hill (22 mi away): nearly the same temperatures every month
Climate Dashboard
Current conditions vs. NOAA normals and recent destination baseline
What the Pleasanton climate comparisons mean
These cards compare recent conditions at Pleasanton with the available local baseline. Temperature and year-to-date rainfall use long-term normals when available. Fog, sunshine, wind, and comfort use the matching recent or modeled baseline identified on each card.
Positive and negative differences describe how Pleasanton departs from its own usual pattern. They should not be read as a direct comparison with another city or as a forecast beyond the period shown.
Pleasanton weather by month
July is the warmest month at Pleasanton, with an average high of 87°F. December is the coldest, with an average low of 39°F. December is the wettest month (3.3 in.), out of about 17.4 in. a year. Morning fog peaks in December, when fog or low cloud covers 18% of the hours from 6 to 10 AM. July has the clearest middays, with clouds covering about 4% of the sky from 11 AM to 3 PM.
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Pleasanton are June, September, and August. The best hours are usually 9 AM to noon in June, 9 AM to noon in September, and 9 AM to noon in August.
| Month | Avg high | Avg low | Rain | Rainy days | Morning fog | Midday cloud | Afternoon wind | Daylight | Comfort |
|---|---|---|---|---|---|---|---|---|---|
| Jan | 58°F | 40°F | 3.3 in | 7 | 14% | 30% | 5 mph | 9.8 h | 60 |
| Feb | 61°F | 42°F | 3.3 in | 8 | 7% | 24% | 7 mph | 10.7 h | 65 |
| Mar | 66°F | 44°F | 2.7 in | 7 | 4% | 28% | 7 mph | 11.9 h | 70 |
| Apr | 70°F | 46°F | 1.4 in | 5 | 3% | 21% | 8 mph | 13.2 h | 80 |
| May | 76°F | 50°F | 0.6 in | 3 | 3% | 16% | 8 mph | 14.2 h | 84 |
| Jun | 83°F | 54°F | 0.1 in | 2 | 3% | 5% | 7 mph | 14.8 h | 89 |
| Jul | 87°F | 57°F | 0.0 in | 0 | 5% | 4% | 6 mph | 14.5 h | 85 |
| Aug | 87°F | 57°F | 0.0 in | 1 | 4% | 5% | 6 mph | 13.6 h | 86 |
| Sep | 85°F | 55°F | 0.1 in | 1 | 4% | 9% | 6 mph | 12.3 h | 88 |
| Oct | 77°F | 51°F | 0.9 in | 4 | 4% | 13% | 6 mph | 11.1 h | 86 |
| Nov | 65°F | 44°F | 1.8 in | 6 | 8% | 20% | 5 mph | 10.1 h | 78 |
| Dec | 57°F | 39°F | 3.3 in | 7 | 18% | 31% | 5 mph | 9.6 h | 59 |
Morning fog is the share of hours from 6 to 10 AM with fog or low cloud. Midday cloud is the average from 11 AM to 3 PM, and afternoon wind is the average from 1 to 5 PM. The highlighted rows are the most comfortable months.
What makes Pleasanton's weather different
Among the 163 San Francisco Bay Area towns we track, Pleasanton has the 3rd-calmest summer afternoons.
- #3of 163
calmest summer afternoonsamong San Francisco Bay Area towns
When the fog burns off
11 AMwhen December fog usually thins (22% foggy at 8 AM)
Fog or low cloud covers Pleasanton in 22% of 8 AM hours in December, the foggiest month. It usually thins to a third of that by 11 AM. April mornings are the least foggy (3%).
When the wind picks up
1 PMwhen afternoon wind builds, February–October
From February through October, wind at Pleasanton typically builds after 1 PM. In May it peaks around 5 PM, averaging 10 mph with 3% of those hours windy, while mornings average 4 mph.
Hot hours
4 habove 85°F on a typical July afternoon
In July, the average temperature stays at or above 85°F for 4 hours a day.
Microclimate
−11°FGarin Regional Park, 8.7 mi away, on summer afternoons
Garin Regional Park, 8.7 miles away, runs about 11°F cooler than Pleasanton on summer afternoons. It also has far more summer morning fog, 43% of morning hours compared with 4%.
Daylight
9.6–14.8 hof daylight, Dec to Jun
Days at Pleasanton range from about 9.6 hours in December to 14.8 hours in June. In mid-June the sun sets around 8:31 PM, and in mid-December around 4:55 PM.
Seasons at Pleasanton
- Warm seasonJun 28 – Sep 24 · highs 84°F+
The warm season lasts about 2.9 months, from Jun 28 to Sep 24, when the average high is 84°F or warmer. Highs peak around Jul 8 at about 87°F.
- Hot afternoonsJul 1 – Sep 7 · highs 85°F+
Average highs reach 85°F or more from Jul 1 to Sep 7.
- Cool seasonNov 27 – Feb 27 · highs 63°F or lower
The cool season runs from Nov 27 to Feb 27, when the average high is 63°F or lower. The coldest nights come around Dec 8, with an average low near 39°F.
- Rainy seasonNov 22 – Mar 26 · 73% of the year's rain
The rainy season runs from Nov 22 to Mar 26, when a day has at least a 20% chance of measurable rain. That stretch brings 73% of the year's rain.
The dark line marks today. Season dates come from the smoothed daily NOAA 1991-2020 normals. Counting from Oct. 1, a typical year has its first inch of rain by Nov 3 and half of its annual total by Jan 27.
Days per year and extremes (Nov 1, 2024 to Oct 31, 2026)
This record runs from Nov 1, 2024 to Oct 31, 2026. Over this record, Pleasanton averaged 41 days a year at 90°F or hotter and 5 nights a year at or below freezing. It averaged 10 days a year with at least half an inch of rain and 1 afternoon with wind of 20 mph or more at 2 PM. About 28 mornings a year had 3 or more hours of fog or low cloud.
In the same record, the hottest day was Sep 9, 2026 (101°F) and the coldest night was Feb 11, 2025 (31°F). The wettest day was Oct 14, 2025 (1.54 in.), and the strongest 2 PM gust was 41 mph on Feb 6, 2025.
- 41days at 90°F or hotter
- 5nights at or below freezing
- 10days with ½ in. of rain or more
- 1afternoon with 20+ mph wind
- 28mornings with 3+ hours of fog or low cloud
- Hottest day101°FSep 9, 2026
- Coldest night31°FFeb 11, 2025
- Wettest day1.54 inOct 14, 2025
- Strongest 2 PM gust41 mphFeb 6, 2025
What shapes Pleasanton's weather
Neither the Dublin Grade nor the Sunol Grade opens directly onto downtown Pleasanton, so its afternoons heat up well before the breeze arrives. A 2017 climate study of the Livermore Valley found long-term normal highs were higher west of Livermore, in Pleasanton and San Ramon, than in Livermore itself. More recent years have pushed downtown Livermore's highs up too, so the difference between the two cities is small and shifts from year to year.
Pleasanton's nights cool quickly. The valley floor is low and flat, and on clear, calm nights cool air draining off Pleasanton Ridge and the hills to the south collects there. The study found that in recent years, October nights around Pleasanton and in the San Ramon Valley cooled more than in the rest of the region. That shows up as crisp fall mornings after warm afternoons.
Rain follows the terrain. The Livermore Valley climate study found a steep drop in rainfall from the hills west of Pleasanton to the eastern Livermore Valley. The ridge catches noticeably more rain than the east side of town. Almost no rain falls from June through September.
Tips for visiting Pleasanton
Climb Pleasanton Ridge in the morning
Trails start from the Foothill Road staging area and climb onto an oak-covered ridge above 1,600 feet. Summer gates open at 8 a.m.
Plan around Red Flag park closures
Red Flag Warnings mark hot, dry, windy days when fire can spread fast, and hill parks may close. Pleasanton Ridge was one of about 30 inland East Bay parks closed during a heat wave and Red Flag Warning in July 2024.
Find a cool room in a heat wave
During heat advisories the city has opened the Pleasanton Library and Senior Center as cooling centers, with water on site.
Walk dogs early on hot days
The city's heat advice is to exercise pets early in the morning, on shaded grass or dirt rather than pavement, and never leave them in a car.
Take BART to the north edge of town
Dublin/Pleasanton station is on Owens Drive, with BART-run surface lots on the Pleasanton side.
Pleasanton through the seasons
- Spring (March–May)
- In spring the hills turn green and afternoons stay mild. It is the best time for the ridge trails, before the grass dries and the heat builds.
- Summer (June–August)
- Hot afternoons and cool nights, with relief arriving on the evening breeze over the Sunol and Dublin grades. Hill parks can close on Red Flag days.
- Fall (September–November)
- Warm afternoons often last into October, but mornings turn crisp as cool air settles on the valley floor overnight.
- Winter (December–February)
- Winter is the rainy season. Pleasanton Ridge gets more rain than the valley floor, and a few clear nights between storms bring frost to low spots.
Activities and the weather that matters
- Hiking and riding Pleasanton Ridge: Multi-use dirt trails climb to ridgetop views. Spring and the weeks after the first fall rains are best, because summer afternoons are hot.
- Evenings downtown on Main Street: Outdoor dining is most comfortable after the evening breeze arrives on summer nights. Bring a layer in fall, when nights cool off quickly.
- Road cycling along Foothill Road: Ride early in summer. Afternoon heat builds along the base of the ridge before the breeze comes through.
Official sources and current conditions
- East Bay Regional Park District: Pleasanton Ridge
- East Bay Regional Park District: alerts and closures
- City of Pleasanton: heat advisory, cooling centers and heat safety (July 2024)
- BART: Dublin/Pleasanton station
- ACE Rail: stations, including Pleasanton
Numbers on this page come from NOAA data. The text draws on the official sources linked above.
Historical Climate Data
Long-term weather patterns and climate data
Data sources: Recent temperatures come from NOAA URMA and recent precipitation from NOAA Stage IV. Fog, cloud, wind, humidity, and sunshine come from NOAA HRRR, and long-term baselines from NOAA 1991-2020 climate normals.
Climate Overview
Based on NOAA 30-year temperature/rain normals (1991-2020) with recent fog/sun baseline
🌟 Best Months to Visit
⚠️ Challenging Months
Monthly Breakdown
| Month | Comfort | High/Low | ☀️ Sun | 🌫️ Fog | 💧 Rain | Perfect |
|---|---|---|---|---|---|---|
| November 2024 | 84 | 63.3° / 43.6° | 6.7h | 0d | 1.79" | 23 |
| December 2024 | 74 | 59.9° / 43.2° | 5.2h | 5d | 4.25" | 12 |
| January 2025 | 86 | 60.2° / 37.7° | 7.1h | 1d | 0.16" | 26 |
| February 2025 | 80 | 61.4° / 42.4° | 7h | 1d | 4.96" | 17 |
| March 2025 | 87 | 62.1° / 44.3° | 8.6h | 0d | 2.15" | 24 |
| April 2025 | 94 | 69.1° / 47.1° | 9.9h | 0d | 0.42" | 28 |
| May 2025 | 95 | 76.2° / 51° | 12.3h | 0d | 0.14" | 31 |
| June 2025 | 95 | 81° / 52.9° | 12.6h | 0d | 0" | 30 |
| July 2025 | 94 | 83° / 56.3° | 12.2h | 0d | 0" | 30 |
| August 2025 | 90 | 88.1° / 58.3° | 11.4h | 0d | 0" | 27 |
| September 2025 | 93 | 83.1° / 60.4° | 10.1h | 0d | 0.09" | 29 |
| October 2025 | 91 | 73.6° / 52.3° | 8.1h | 1d | 2.01" | 29 |
| November 2025 | 80 | 64.5° / 47.6° | 6.5h | 7d | 2.97" | 15 |
| December 2025 | 72 | 56.4° / 43.3° | 5.5h | 12d | 2.41" | 8 |
| January 2026 | 81 | 60.3° / 40.8° | 6.8h | 3d | 2.88" | 21 |
| February 2026 | 81 | 63.8° / 43.2° | 6.8h | 5d | 3.86" | 20 |
| March 2026 | 96 | 77.2° / 48.9° | 9.9h | 0d | 0.01" | 30 |
| April 2026 | 89 | 68.8° / 48.6° | 9.4h | 0d | 3.06" | 25 |
| May 2026 | 95 | 75.2° / 51.8° | 11.5h | 0d | 0.56" | 29 |
| June 2026 | 94 | 82.1° / 55.6° | 12.7h | 0d | 0" | 29 |
| July 2026 | 92 | 85.5° / 57.8° | 12h | 0d | 0" | 29 |
| August 2026 | 92 | 87.7° / 58° | 11.1h | 1d | 0.03" | 29 |
| September 2026 | 94 | 81.2° / 55.8° | 10.3h | 0d | 0.03" | 28 |
| October 2026 | 87 | 79.1° / 52.8° | 8.3h | 0d | 0.27" | 24 |
Climate Trends
Average Temperature by Month
About the Pleasanton climate charts
The temperature chart compares average monthly highs and lows at Pleasanton, showing both the seasonal cycle and the typical day-to-night range. The comfort chart summarizes how often the combined weather pattern is favorable rather than judging temperature alone.
Precipitation shows the total recorded or modeled rainfall for each month at Pleasanton. Sunshine compares average bright-sky hours with the daylight available, while fog shows the average number of morning fog or low-cloud hours per day. Switch between the chart tabs to compare the same months across each measure.
Hourly Temperature, Fog, Wind, Cloud Cover, and Solar Radiation Patterns
Average local hour by month from 2014-09-30 to 2026-04-30
- Temperature: At Pleasanton, the warmest typical hour is 3 PM in July (87°F). The coldest is 7 AM in December (43°F).
- Fog: Fog or low cloud covers Pleasanton in 22% of 8 AM hours in December, the foggiest month. It usually thins to a third of that by 11 AM. April mornings are the least foggy (3%).
- Wind: From February through October, wind at Pleasanton typically builds after 1 PM. In May it peaks around 5 PM, averaging 10 mph with 3% of those hours windy, while mornings average 4 mph.
- Cloud Cover: July middays are the clearest at Pleasanton (4% average cloud cover), and December middays are the cloudiest (31%).
- Solar Radiation: The strongest typical sun at Pleasanton comes at 1 PM in June, averaging 1003 W/m².
How to read the hourly heatmaps for Pleasanton
This heatmap shows how average temperature at Pleasanton changes by hour and month. Read left to right for the seasons and top to bottom for the time of day. Warmer colors mark the usual afternoon peaks, and cooler colors show overnight and winter lows.
This heatmap shows when fog or low cloud is most likely at Pleasanton. Darker cells mark the months and hours when fog has been most common. They help separate overnight or morning fog from cloud that tends to linger into the afternoon.
This heatmap shows the typical hourly wind pattern at Pleasanton through the year. It makes recurring afternoon wind, calmer overnight periods, and seasonal changes easier to compare than a single daily wind value.
This heatmap shows average cloud cover at Pleasanton for every month and hour. Use it to see whether cloudiness is mainly an overnight and morning pattern or commonly persists during the part of the day you plan to visit.
This heatmap shows the average solar radiation reaching Pleasanton by month and hour. Brighter cells indicate the strongest typical sun, while muted cells can reflect nighttime, shorter winter days, cloud cover, smoke, or terrain shading.
Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage. The red marker shows the current month and hour.
How recent months compared at Pleasanton
- October 2026 recap: October 2026 at Pleasanton averaged a high of 79°F, 5°F warmer than October 2025 (74°F).
- Rain year: The 2025-26 rain year (Oct. 1 to Sep. 30) brought 17.8 in. of rain to Pleasanton, 102% of the 17.4 in. normal.
Location Details
Pleasanton weather questions
Everything you need to know about weather and visiting Pleasanton
What is the weather like at Pleasanton today?
It's 53°F at Pleasanton right now, with a comfort score of 77 (great). Monday's forecast high at Pleasanton is 56°F, 9°F below the mid November normal of 65°F. The best window today is 9 AM to noon, at about 55°F with a 6 mph wind (comfort 66).
What is the best month to visit Pleasanton?
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Pleasanton are June, September, and August. The best hours are usually 9 AM to noon in June, 9 AM to noon in September, and 9 AM to noon in August. The warm season lasts about 2.9 months, from Jun 28 to Sep 24, when the average high is 84°F or warmer. Highs peak around Jul 8 at about 87°F.
What are the warmest and coldest months at Pleasanton?
July is the warmest month at Pleasanton, with an average high of 87°F. December is the coldest, with an average low of 39°F.
When does the fog burn off at Pleasanton?
Fog or low cloud covers Pleasanton in 22% of 8 AM hours in December, the foggiest month. It usually thins to a third of that by 11 AM. April mornings are the least foggy (3%).
When is it windiest at Pleasanton?
From February through October, wind at Pleasanton typically builds after 1 PM. In May it peaks around 5 PM, averaging 10 mph with 3% of those hours windy, while mornings average 4 mph.
How much rain does Pleasanton get?
December is the wettest month (3.3 in.), out of about 17.4 in. a year. The rainy season runs from Nov 22 to Mar 26, when a day has at least a 20% chance of measurable rain. That stretch brings 73% of the year's rain. The 2025-26 rain year (Oct. 1 to Sep. 30) brought 17.8 in. of rain to Pleasanton, 102% of the 17.4 in. normal.
How does Pleasanton weather compare with Garin Regional Park?
Garin Regional Park, 8.7 miles away, runs about 11°F cooler than Pleasanton on summer afternoons. It also has far more summer morning fog, 43% of morning hours compared with 4%.
What kind of place is Pleasanton?
Pleasanton covers the southern half of the Amador Valley, from a Main Street downtown that grew up along the first transcontinental railroad to the foot of Pleasanton Ridge. The ridge, protected by the East Bay Regional Park District as a 9,090-acre park, forms the city's oak-covered western wall. To the south, I-680 leaves town over the Sunol Grade. Those two features, more than distance from the ocean, decide how quickly Pleasanton cools down on a summer evening.
What is Pleasanton weather like in November?
November at Pleasanton averages a high of 65°F and a low of 44°F, with 1.8 in. of rain over about 6 rainy days. Afternoon wind averages 5 mph.
More about Pleasanton weather
Guides that explain the weather here and nearby
Data sources and methods
- Monthly temperatures and precipitation: NOAA 1991-2020 normals.
- Fog, cloud, wind, sun, and comfort by hour and month: NOAA's HRRR hourly analysis from September 2014 to April 2026.
- Daily records and recent months: NOAA URMA and HRRR analyses, plus NOAA Stage IV precipitation.
- Nearby comparisons and regional rankings use the same hourly HRRR summaries for every destination in the region.
- Alerts: National Weather Service. Tides and ocean temperature: NOAA CO-OPS, where shown.
- All statements on this page are computed from these datasets, apart from the “What shapes the weather” guide, which cites its sources inline.
- Patrick L. Shabram, Mesoclimate Patterns of the Livermore Valley AVA (2017, prepared for the Livermore Valley Winegrowers Association) (accessed 2026-10-27)
- East Bay Regional Park District, Pleasanton Ridge Regional Park (accessed 2026-10-27)
- Contra Costa News, East Bay Regional Park closures extended through Friday (July 4, 2024) (accessed 2026-10-27)
- City of Pleasanton, Heat Advisory in Pleasanton: Cooling Centers and Heat Safety (July 1, 2024) (accessed 2026-10-27)
- BART, Dublin/Pleasanton station (accessed 2026-10-27)
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