Dublin Weather
Town • San Francisco Bay Area
Dublin sits where Interstates 580 and 680 cross at the west end of the Tri-Valley. It lies at the foot of the Dublin Grade, the freeway climb over the hills toward Castro Valley. Its west side backs up against the Dougherty Hills and Dublin Hills Regional Park. That East Bay Regional Park District ridge has some of the widest views in the valley. Of the Tri-Valley cities, Dublin is the closest to the low gap that lets cool Bay air into the valley, and that position shapes its summer evenings.
Plan your week
10-Day Forecast
Hour by hour
Hourly Forecast
Current Conditions
Comfort Breakdown
Dublin weather today and through the year
It's 52°F at Dublin right now (feels like 50°F), with 3 mph wind and a comfort score of 76. Monday's forecast high at Dublin is 56°F, 9°F below the mid November normal of 65°F. The best window today is 9 AM to noon, at about 54°F with a 8 mph wind (comfort 60).
July is the warmest month at Dublin, with an average high of 86°F. December is the coldest, with an average low of 40°F. December is the wettest month (4.0 in.), out of about 20.3 in. a year. By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Dublin are June, September, and July. The best hours are usually 9 AM to noon in June, 9 AM to noon in September, and 9 AM to noon in July.
Cool marine air reaches the Tri-Valley through a handful of low spots in the hills to the west, and the Dublin Grade is the most direct of them. A 2017 study of local climates in the Livermore Valley wine region found the western ridges around the grade running cooler than the valley floor. Dublin sits at the bottom of that gap, so it is the first Tri-Valley city to feel the sea breeze when it pushes in on summer evenings.
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 Dublin 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 54°F with a 8 mph wind (comfort 60).
Best day this week
Of the next 7 days, Friday looks best for Dublin, with a 60°F high and midday comfort near 77. Thursday looks weakest (47).
Rain
Next good chance of rain: today (84%, about 0.16 in.).
Live weather map
Weather around Dublin right now
Overcast and 52° at Dublin right now.
About the live weather map for Dublin
The map centers on Dublin 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.
Dublin vs nearby places
Typical summer conditions compared with Dublin, 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 Dublin |
|---|---|---|---|---|---|
| Pleasanton | 4.3 mi | +3°F | 4% | 6 mph | calmer summer afternoons (6 vs 11 mph) |
| San Ramon | 5.8 mi | -2°F | 25% | 11 mph | more summer morning fog (25% vs 7% of morning hours) |
| Garin Regional Park | 7.2 mi | -8°F | 43% | 10 mph | more summer morning fog (43% vs 7% of morning hours) and about 8°F cooler on summer afternoons |
| Coyote Hills Regional Park | 13.3 mi | -20°F | 21% | 14 mph | about 20°F cooler on summer afternoons and more summer morning fog (21% vs 7% of morning hours) |
| Don Edwards Wildlife Refuge | 15.3 mi | -20°F | 18% | 16 mph | about 20°F cooler on summer afternoons and windier summer afternoons (16 vs 11 mph) |
| Claremont District | 19.7 mi | -13°F | 56% | 9 mph | more summer morning fog (56% vs 7% of morning hours) and about 13°F cooler on summer afternoons |
Places with a climate like Dublin's
- Concord (20 mi away): nearly the same temperatures every month
- Pleasant Hill (18 mi away): nearly the same temperatures every month
- Walnut Creek (16 mi away): nearly the same temperatures every month
Climate Dashboard
Current conditions vs. NOAA normals and recent destination baseline
What the Dublin climate comparisons mean
These cards compare recent conditions at Dublin 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 Dublin 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.
Dublin weather by month
July is the warmest month at Dublin, with an average high of 86°F. December is the coldest, with an average low of 40°F. December is the wettest month (4.0 in.), out of about 20.3 in. a year. Morning fog peaks in December, when fog or low cloud covers 21% of the hours from 6 to 10 AM. July has the clearest middays, with clouds covering about 5% of the sky from 11 AM to 3 PM.
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Dublin are June, September, and July. The best hours are usually 9 AM to noon in June, 9 AM to noon in September, and 9 AM to noon in July.
| Month | Avg high | Avg low | Rain | Rainy days | Morning fog | Midday cloud | Afternoon wind | Daylight | Comfort |
|---|---|---|---|---|---|---|---|---|---|
| Jan | 57°F | 40°F | 3.9 in | 8 | 14% | 31% | 5 mph | 9.8 h | 59 |
| Feb | 60°F | 42°F | 3.9 in | 8 | 9% | 24% | 7 mph | 10.7 h | 64 |
| Mar | 65°F | 44°F | 3.1 in | 7 | 7% | 28% | 8 mph | 11.9 h | 69 |
| Apr | 69°F | 46°F | 1.5 in | 5 | 4% | 21% | 9 mph | 13.2 h | 77 |
| May | 75°F | 50°F | 0.7 in | 3 | 6% | 17% | 11 mph | 14.2 h | 81 |
| Jun | 82°F | 54°F | 0.1 in | 2 | 6% | 5% | 11 mph | 14.8 h | 89 |
| Jul | 86°F | 57°F | 0.0 in | 0 | 10% | 5% | 11 mph | 14.5 h | 86 |
| Aug | 86°F | 58°F | 0.0 in | 1 | 6% | 6% | 10 mph | 13.6 h | 85 |
| Sep | 84°F | 56°F | 0.1 in | 1 | 4% | 10% | 9 mph | 12.3 h | 89 |
| Oct | 76°F | 51°F | 0.9 in | 4 | 6% | 13% | 7 mph | 11.1 h | 86 |
| Nov | 65°F | 44°F | 2.1 in | 6 | 10% | 21% | 5 mph | 10.1 h | 78 |
| Dec | 57°F | 40°F | 4.0 in | 8 | 21% | 32% | 5 mph | 9.6 h | 58 |
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.
In summer, recent daily NOAA readings at Dublin average about 4°F cooler than the 1991-2020 normals. The normals average over a wider area that also covers nearby terrain. Read the monthly highs as a rough range, and use the recent months below for what Dublin has actually seen.
What makes Dublin's weather different
When the fog burns off
noonwhen December fog usually thins (23% foggy at 8 AM)
Fog or low cloud covers Dublin in 23% of 8 AM hours in December, the foggiest month. It usually thins to a third of that by noon. April mornings are the least foggy (4%).
When the wind picks up
1 PMwhen afternoon wind builds, February–October
From February through October, wind at Dublin typically builds after 1 PM. In May it peaks around 5 PM, averaging 12 mph with 13% of those hours windy, while mornings average 5 mph.
Microclimate
−8°FGarin Regional Park, 7.2 mi away, on summer afternoons
Garin Regional Park, 7.2 miles away, runs about 8°F cooler than Dublin on summer afternoons. It also has far more summer morning fog, 43% of morning hours compared with 7%.
Daylight
9.6–14.8 hof daylight, Dec to Jun
Days at Dublin range from about 9.6 hours in December to 14.8 hours in June. In mid-June the sun sets around 8:32 PM, and in mid-December around 4:56 PM.
Seasons at Dublin
- Warm seasonJun 25 – Sep 26 · highs 82°F+
The warm season lasts about 3.1 months, from Jun 25 to Sep 26, when the average high is 82°F or warmer. Highs peak around Jul 8 at about 86°F.
- Hot afternoonsJul 6 – Aug 30 · highs 85°F+
Average highs reach 85°F or more from Jul 6 to Aug 30.
- Cool seasonNov 28 – Feb 26 · highs 62°F or lower
The cool season runs from Nov 28 to Feb 26, when the average high is 62°F or lower. The coldest nights come around Dec 8, with an average low near 40°F.
- Rainy seasonNov 16 – Apr 2 · 79% of the year's rain
The rainy season runs from Nov 16 to Apr 2, when a day has at least a 20% chance of measurable rain. That stretch brings 79% 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 1 and half of its annual total by Jan 26.
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, Dublin averaged 26 days a year at 90°F or hotter and 3 nights a year at or below freezing. It averaged 16 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 42 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 Feb 14, 2025 (1.73 in.), and the strongest 2 PM gust was 40 mph on Mar 12, 2025.
- 26days at 90°F or hotter
- 3nights at or below freezing
- 16days with ½ in. of rain or more
- 1afternoon with 20+ mph wind
- 42mornings with 3+ hours of fog or low cloud
- Hottest day101°FSep 9, 2026
- Coldest night31°FFeb 11, 2025
- Wettest day1.73 inFeb 14, 2025
- Strongest 2 PM gust40 mphMar 12, 2025
What shapes Dublin's weather
Dublin's summer afternoons are hot. A 2017 study of the Livermore Valley wine region mapped its local climates. It found the western Livermore Valley and southern San Ramon Valley, which meet at Dublin, among the warmest parts of the region in July and August. The marine layer is the sheet of low ocean cloud that fills the bay side on summer nights. The ridge to the west usually holds it back. Dublin is often sunny while Castro Valley and Hayward, on the Bay side of the grade, are still under low cloud.
Dublin's north side opens into the San Ramon Valley, which draws its own cool air from the Dublin Grade, Bollinger Canyon, and the Highway 24 corridor. On calm, clear winter nights, cold air drains off the surrounding hills and pools on the flat valley floor. Dublin's winter mornings are often colder than those across the ridge, and patchy fog can form in the lowest spots.
Tips for visiting Dublin
Hike Dublin Hills early
Trails start from the Donlon Point staging area off Dublin Boulevard and run along an open grassland ridge. The ridge has little shade, so start early and finish before the afternoon heat.
Check for fire-weather closures
The park district can close inland parks such as Dublin Hills during Red Flag Warnings, which the weather service issues for hot, dry, windy fire weather. Dublin Hills was among about 30 parks closed in a July 2024 heat wave.
Know where to cool off
The city points residents to the air-conditioned Dublin Senior Center and Dublin Library, and may extend hours when highs over 95°F are expected for several days.
Take BART instead of driving
Dublin/Pleasanton station, at the east end of its BART line, has a parking garage on the Dublin side.
Save outdoor plans for evening
Summer evenings are the most comfortable time to be out, because the breeze over the Dublin Grade cools the west end of the Tri-Valley first.
Dublin through the seasons
- Spring (March–May)
- The Dublin Hills turn green in spring, and afternoons stay mild. The Dougherty Hills trail along the ridge gives wide views of Mount Diablo and the Tri-Valley, sharpest on clear days after a storm.
- Summer (June–August)
- Summer afternoons are hot and sunny, and the breeze over the Dublin Grade brings relief by evening. Red Flag days can close the hill parks on the city's edge.
- Fall (September–November)
- Heat can linger into early fall before the first rains, which usually arrive in October or November. Nights cool off fast once the days shorten.
- Winter (December–February)
- Winter is the rainy season, when the hills turn green. Clear, calm nights between storms are cold on the valley floor, with frost on some mornings.
Activities and the weather that matters
- Ridge hiking in Dublin Hills: Best on cool spring mornings or after the first fall rains. The trails cross open grassland that gets hot on summer afternoons.
- Creek trail walks: The Martin Canyon Creek Trail follows the creek for just under a mile, a good length for warm evenings once the west breeze arrives.
- Picnics at Emerald Glen and Fallon Sports Park: Midday sun is the problem in summer. Late afternoon and evening picnics usually catch the cooling breeze.
Official sources and current conditions
- City of Dublin: cooling centers
- City of Dublin: parks and open spaces
- East Bay Regional Park District: Dublin Hills
- East Bay Regional Park District: alerts and closures
- BART: Dublin/Pleasanton station
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 | 83 | 63.3° / 43.9° | 6.6h | 1d | 2.49" | 23 |
| December 2024 | 72 | 59.9° / 43.7° | 5.1h | 6d | 5.62" | 12 |
| January 2025 | 85 | 60.2° / 38.7° | 7.1h | 0d | 0.19" | 26 |
| February 2025 | 78 | 61.2° / 42.5° | 6.7h | 2d | 6.22" | 15 |
| March 2025 | 86 | 62.3° / 44.5° | 8.7h | 0d | 2.34" | 22 |
| April 2025 | 93 | 68° / 47.4° | 9.8h | 0d | 0.49" | 25 |
| May 2025 | 94 | 73.9° / 51.1° | 12.3h | 1d | 0.2" | 31 |
| June 2025 | 95 | 76.5° / 52.7° | 12.8h | 0d | 0" | 30 |
| July 2025 | 94 | 78.2° / 55.9° | 12.2h | 0d | 0.01" | 31 |
| August 2025 | 92 | 83.7° / 58.1° | 11.3h | 0d | 0" | 30 |
| September 2025 | 93 | 81° / 60.4° | 9.9h | 0d | 0.17" | 29 |
| October 2025 | 90 | 72.9° / 52.8° | 8.3h | 1d | 2.08" | 28 |
| November 2025 | 79 | 64.6° / 48.1° | 6.6h | 9d | 3.66" | 15 |
| December 2025 | 68 | 56.5° / 43.6° | 5h | 15d | 3.59" | 5 |
| January 2026 | 80 | 60.8° / 41.9° | 6.9h | 3d | 3.66" | 21 |
| February 2026 | 81 | 63.9° / 44° | 6.9h | 5d | 4.67" | 20 |
| March 2026 | 96 | 77.1° / 49.6° | 10h | 0d | 0.03" | 30 |
| April 2026 | 88 | 68.3° / 49° | 9.3h | 0d | 4.3" | 24 |
| May 2026 | 93 | 73.1° / 51.9° | 11.8h | 1d | 0.49" | 31 |
| June 2026 | 95 | 78.6° / 55.4° | 12.7h | 0d | 0.01" | 30 |
| July 2026 | 93 | 80.9° / 57.3° | 11.7h | 1d | 0" | 29 |
| August 2026 | 93 | 83.3° / 57.8° | 11.2h | 1d | 0.02" | 31 |
| September 2026 | 94 | 79.3° / 56° | 10.4h | 0d | 0.09" | 29 |
| October 2026 | 89 | 78.3° / 53.4° | 8.2h | 1d | 0.36" | 26 |
Climate Trends
Average Temperature by Month
About the Dublin climate charts
The temperature chart compares average monthly highs and lows at Dublin, 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 Dublin. 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 Dublin, the warmest typical hour is 3 PM in August (84°F). The coldest is 7 AM in December (43°F).
- Fog: Fog or low cloud covers Dublin in 23% of 8 AM hours in December, the foggiest month. It usually thins to a third of that by noon. April mornings are the least foggy (4%).
- Wind: From February through October, wind at Dublin typically builds after 1 PM. In May it peaks around 5 PM, averaging 12 mph with 13% of those hours windy, while mornings average 5 mph.
- Cloud Cover: July middays are the clearest at Dublin (5% average cloud cover), and December middays are the cloudiest (32%).
- Solar Radiation: The strongest typical sun at Dublin comes at 1 PM in June, averaging 997 W/m².
How to read the hourly heatmaps for Dublin
This heatmap shows how average temperature at Dublin 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 Dublin. 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 Dublin 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 Dublin 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 Dublin 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 Dublin
- October 2026 recap: October 2026 at Dublin averaged a high of 78°F, 5°F warmer than October 2025 (73°F).
- Rain year: The 2025-26 rain year (Oct. 1 to Sep. 30) brought 22.6 in. of rain to Dublin, 111% of the 20.3 in. normal.
Location Details
Dublin weather questions
Everything you need to know about weather and visiting Dublin
What is the weather like at Dublin today?
It's 52°F at Dublin right now, with a comfort score of 76 (great). Monday's forecast high at Dublin is 56°F, 9°F below the mid November normal of 65°F. The best window today is 9 AM to noon, at about 54°F with a 8 mph wind (comfort 60).
What is the best month to visit Dublin?
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Dublin are June, September, and July. The best hours are usually 9 AM to noon in June, 9 AM to noon in September, and 9 AM to noon in July. The warm season lasts about 3.1 months, from Jun 25 to Sep 26, when the average high is 82°F or warmer. Highs peak around Jul 8 at about 86°F.
What are the warmest and coldest months at Dublin?
July is the warmest month at Dublin, with an average high of 86°F. December is the coldest, with an average low of 40°F.
When does the fog burn off at Dublin?
Fog or low cloud covers Dublin in 23% of 8 AM hours in December, the foggiest month. It usually thins to a third of that by noon. April mornings are the least foggy (4%).
When is it windiest at Dublin?
From February through October, wind at Dublin typically builds after 1 PM. In May it peaks around 5 PM, averaging 12 mph with 13% of those hours windy, while mornings average 5 mph.
How much rain does Dublin get?
December is the wettest month (4.0 in.), out of about 20.3 in. a year. The rainy season runs from Nov 16 to Apr 2, when a day has at least a 20% chance of measurable rain. That stretch brings 79% of the year's rain. The 2025-26 rain year (Oct. 1 to Sep. 30) brought 22.6 in. of rain to Dublin, 111% of the 20.3 in. normal.
How does Dublin weather compare with Garin Regional Park?
Garin Regional Park, 7.2 miles away, runs about 8°F cooler than Dublin on summer afternoons. It also has far more summer morning fog, 43% of morning hours compared with 7%.
What kind of place is Dublin?
Dublin sits where Interstates 580 and 680 cross at the west end of the Tri-Valley. It lies at the foot of the Dublin Grade, the freeway climb over the hills toward Castro Valley. Its west side backs up against the Dougherty Hills and Dublin Hills Regional Park. That East Bay Regional Park District ridge has some of the widest views in the valley. Of the Tri-Valley cities, Dublin is the closest to the low gap that lets cool Bay air into the valley, and that position shapes its summer evenings.
What is Dublin weather like in November?
November at Dublin averages a high of 65°F and a low of 44°F, with 2.1 in. of rain over about 6 rainy days. Afternoon wind averages 5 mph.
More about Dublin 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, Dublin Hills 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 Dublin, Cooling Centers (accessed 2026-10-27)
- BART, Dublin/Pleasanton station (accessed 2026-10-27)
- City of Dublin, Parks and Open Spaces (accessed 2026-10-27)
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