Concord Weather
Town • San Francisco Bay Area
Concord covers the broad, flat north end of the Diablo Valley. The Suisun Bay marshes run along its northern edge, and the foothills of Mount Diablo rise to the southeast. Its downtown grew around Todos Santos Plaza, the old town square that still hosts the weekly farmers market, and BART runs through the middle of the city. Most of Concord sits miles back from open water and well inland of the Briones Hills, so it runs hotter in summer than Martinez on the strait.
Plan your week
10-Day Forecast
Hour by hour
Hourly Forecast
Current Conditions
Comfort Breakdown
Concord weather today and through the year
It's 53°F at Concord right now (feels like 51°F), with 4 mph wind and a comfort score of 77. Monday's forecast high at Concord is 57°F, 8°F below the mid November normal of 65°F. No fog in the forecast for today at Concord. In November, 12% of morning hours here are foggy on average. The best window today is 8 AM to 11 AM, at about 54°F with a 6 mph wind (comfort 59).
July is the warmest month at Concord, with an average high of 87°F. December is the coldest, with an average low of 39°F. January is the wettest month (3.8 in.), out of about 18.6 in. a year. By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Concord 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 Briones and Berkeley hills to the west are tall enough to keep most cool ocean air out of the Diablo Valley. The Air District credits that barrier, plus distance from the water, for the valley's warm summers and cool winters. Concord's flat valley floor heats quickly on a clear morning, so summer afternoons here are routinely far warmer than anywhere along the bay shore.
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 Concord in the next few days
No active National Weather Service alerts for this location.
Fog
No fog in the forecast for today at Concord. In November, 12% of morning hours here are foggy on average.
Best time to go
The best window today is 8 AM to 11 AM, at about 54°F with a 6 mph wind (comfort 59).
Best day this week
Of the next 7 days, Friday looks best for Concord, with a 61°F high and midday comfort near 82. Wednesday looks weakest (56).
Rain
Next good chance of rain: today (75%, about 0.15 in.).
Live weather map
Weather around Concord right now
Overcast and 53° at Concord right now.
About the live weather map for Concord
The map centers on Concord 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.
Concord vs nearby places
Typical summer conditions compared with Concord, 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 Concord |
|---|---|---|---|---|---|
| Pleasant Hill | 2.6 mi | same | 10% | 7 mph | a very similar climate |
| Walnut Creek | 5 mi | -1°F | 11% | 8 mph | a very similar climate |
| Alhambra Valley | 5.8 mi | -4°F | 14% | 11 mph | about 32% more rain a year and about 4°F cooler on summer afternoons |
| Angel Island State Park | 23.3 mi | -23°F | 27% | 15 mph | about 23°F cooler on summer afternoons and windier summer afternoons (15 vs 8 mph) |
| Alcatraz Island | 23.8 mi | -27°F | 34% | 19 mph | about 27°F cooler on summer afternoons and windier summer afternoons (19 vs 8 mph) |
| Downtown San Francisco | 23.8 mi | -23°F | 27% | 10 mph | about 23°F cooler on summer afternoons and more summer morning fog (27% vs 9% of morning hours) |
Places with a climate like Concord's
- Livermore (25 mi away): nearly the same temperatures every month
- Pleasanton (23 mi away): nearly the same temperatures every month
- Dublin (20 mi away): nearly the same temperatures every month
Climate Dashboard
Current conditions vs. NOAA normals and recent destination baseline
What the Concord climate comparisons mean
These cards compare recent conditions at Concord 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 Concord 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.
Concord weather by month
July is the warmest month at Concord, with an average high of 87°F. December is the coldest, with an average low of 39°F. January is the wettest month (3.8 in.), out of about 18.6 in. a year. Morning fog peaks in December, when fog or low cloud covers 26% 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 Concord 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 | 56°F | 39°F | 3.8 in | 8 | 23% | 34% | 5 mph | 9.8 h | 59 |
| Feb | 61°F | 42°F | 3.5 in | 8 | 12% | 25% | 7 mph | 10.7 h | 64 |
| Mar | 66°F | 44°F | 2.8 in | 7 | 7% | 28% | 7 mph | 11.9 h | 70 |
| Apr | 70°F | 46°F | 1.3 in | 5 | 5% | 21% | 8 mph | 13.2 h | 80 |
| May | 77°F | 50°F | 0.6 in | 3 | 6% | 16% | 9 mph | 14.2 h | 84 |
| Jun | 84°F | 55°F | 0.1 in | 2 | 9% | 6% | 9 mph | 14.8 h | 87 |
| Jul | 87°F | 57°F | 0.0 in | 0 | 11% | 5% | 8 mph | 14.5 h | 84 |
| Aug | 87°F | 57°F | 0.0 in | 1 | 8% | 6% | 8 mph | 13.6 h | 85 |
| Sep | 85°F | 55°F | 0.1 in | 1 | 5% | 10% | 7 mph | 12.3 h | 87 |
| Oct | 77°F | 51°F | 0.9 in | 4 | 6% | 13% | 6 mph | 11.1 h | 85 |
| Nov | 65°F | 44°F | 1.9 in | 6 | 12% | 23% | 5 mph | 10.0 h | 77 |
| Dec | 57°F | 39°F | 3.8 in | 8 | 26% | 38% | 5 mph | 9.5 h | 55 |
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 Concord's weather different
When the fog burns off
4 PMwhen December fog usually thins (29% foggy at 6 AM)
Fog or low cloud covers Concord in 29% of 6 AM hours in December, the foggiest month. It usually thins to a third of that by 4 PM. April mornings are the least foggy (5%).
When the wind picks up
2 PMwhen afternoon wind builds, March–September
From March through September, wind at Concord typically builds after 2 PM. In May it peaks around 5 PM, averaging 10 mph with 3% of those hours windy, while mornings average 6 mph.
Hot hours
3 habove 85°F on a typical July afternoon
In July, the average temperature stays at or above 85°F for 3 hours a day.
Daylight
9.5–14.8 hof daylight, Dec to Jun
Days at Concord range from about 9.5 hours in December to 14.8 hours in June. In mid-June the sun sets around 8:32 PM, and in mid-December around 4:53 PM.
Seasons at Concord
- Warm seasonJun 26 – Sep 24 · highs 84°F+
The warm season lasts about 3 months, from Jun 26 to Sep 24, when the average high is 84°F or warmer. Highs peak around Jul 8 at about 87°F.
- Hot afternoonsJun 30 – Sep 6 · highs 85°F+
Average highs reach 85°F or more from Jun 30 to Sep 6.
- Cool seasonNov 27 – Feb 26 · highs 63°F or lower
The cool season runs from Nov 27 to Feb 26, 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 20 – Mar 29 · 77% of the year's rain
The rainy season runs from Nov 20 to Mar 29, when a day has at least a 20% chance of measurable rain. That stretch brings 77% 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 24.
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, Concord averaged 46 days a year at 90°F or hotter and 1 night a year at or below freezing. It averaged 9 days a year with at least half an inch of rain and 0 afternoons with wind of 20 mph or more at 2 PM. About 56 mornings a year had 3 or more hours of fog or low cloud.
In the same record, the hottest day was Aug 3, 2026 (102°F) and the coldest night was Feb 10, 2025 (32°F). The wettest day was Feb 18, 2026 (1.29 in.), and the strongest 2 PM gust was 40 mph on Feb 4, 2025.
- 46days at 90°F or hotter
- 1night at or below freezing
- 9days with ½ in. of rain or more
- 0afternoons with 20+ mph wind
- 56mornings with 3+ hours of fog or low cloud
- Hottest day102°FAug 3, 2026
- Coldest night32°FFeb 10, 2025
- Wettest day1.29 inFeb 18, 2026
- Strongest 2 PM gust40 mphFeb 4, 2025
What shapes Concord's weather
Concord's one opening to the sea breeze is to the north. Ocean air pushes east through the Carquinez Strait on most summer afternoons, and the northern part of the county gets strong gusts from it. North Concord, nearer Suisun Bay, usually feels that wind first. Neighborhoods tucked against the Mount Diablo foothills on the south side often wait until evening for any relief.
On clear, calm winter nights, cold air settles on the low valley floor, and fog can form by morning. Winter is also the season when smoke and fine particles drift west through the strait from the Central Valley and mix with local wood smoke. The air can get hazy on still days even when the sky is cloudless.
Tips for visiting Concord
Shop the plaza farmers market
Todos Santos Plaza hosts a farmers market every week of the year, and summer adds evening music-and-market nights.
Do outdoor errands before noon in summer
Summer afternoons in the Diablo Valley are warm to hot because the hills to the west block most marine air. Mornings and evenings are the comfortable windows.
Take BART instead of driving downtown
Concord Station sits a few blocks from Todos Santos Plaza, on BART's line between Antioch and SFO.
Ride the Canal Trail to Lime Ridge
The paved Contra Costa Canal Trail links Concord with Pleasant Hill, Walnut Creek and Martinez and passes Lime Ridge.
Check air quality on still winter days
Fine-particle pollution peaks in winter, when haze from the Central Valley drifts through the Carquinez Strait and adds to wood smoke.
Concord through the seasons
- Spring (March–May)
- The hills around Lime Ridge and Mount Diablo are green, and nearby Mitchell Canyon is known for spring wildflowers. Warm days start in earnest by May.
- Summer (June–August)
- Summer brings hot afternoons and a late-day westerly breeze from the Carquinez Strait. Summer heat in the valleys also drives the Bay Area's ozone smog.
- Fall (September–October)
- Heat waves can still arrive in September and early October, when the sea breeze is weaker. Nights cool off faster as October goes on.
- Winter (November–February)
- Winter is the rainy season, with cool and sometimes foggy mornings on the valley floor. Calm, cold stretches bring the worst fine-particle air of the year.
Activities and the weather that matters
- Farmers market at Todos Santos Plaza: The daytime market is easy in spring and fall. Summer evening markets start while the afternoon heat is still strong.
- Biking the Canal Trail: The trail is paved and mostly exposed. Ride early on summer days, and expect a headwind heading west in the afternoon.
- Hiking Mount Diablo from the north side: Hiking is best from fall through spring. On summer days start at dawn, because the lower trails get hot.
Official sources and current conditions
- Visit Concord: Farmers Market
- BART: Concord Station
- East Bay Regional Park District: Contra Costa Canal Trail
- Bay Area Air Quality Management District: Contra Costa County
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 | 82 | 63.1° / 45° | 6.4h | 3d | 1.61" | 19 |
| December 2024 | 71 | 58.2° / 44.2° | 4.7h | 10d | 3.48" | 10 |
| January 2025 | 82 | 59.7° / 39.1° | 6.9h | 6d | 0.04" | 21 |
| February 2025 | 79 | 61.8° / 43.1° | 6.6h | 2d | 4.31" | 18 |
| March 2025 | 86 | 63.7° / 45.4° | 8.5h | 1d | 1.46" | 25 |
| April 2025 | 94 | 71.2° / 48.9° | 9.8h | 0d | 0.23" | 28 |
| May 2025 | 94 | 78.7° / 53.7° | 12.3h | 0d | 0.16" | 29 |
| June 2025 | 95 | 82° / 55.1° | 12.7h | 0d | 0" | 30 |
| July 2025 | 94 | 82.2° / 57.6° | 12.4h | 0d | 0" | 30 |
| August 2025 | 89 | 89.3° / 60° | 11.5h | 0d | 0" | 26 |
| September 2025 | 92 | 83.7° / 61.8° | 10h | 0d | 0.09" | 28 |
| October 2025 | 89 | 74° / 53.6° | 7.9h | 1d | 1.38" | 27 |
| November 2025 | 78 | 64.1° / 49.3° | 6.1h | 12d | 1.79" | 18 |
| December 2025 | 64 | 54.7° / 44.5° | 4.6h | 20d | 2.76" | 3 |
| January 2026 | 73 | 59.4° / 42.4° | 6.3h | 16d | 2.76" | 12 |
| February 2026 | 79 | 64.2° / 45.2° | 6.6h | 7d | 3.32" | 20 |
| March 2026 | 94 | 78.6° / 51.5° | 9.7h | 2d | 0.01" | 31 |
| April 2026 | 89 | 70.1° / 50.2° | 9.3h | 2d | 2.93" | 24 |
| May 2026 | 95 | 76.8° / 54.1° | 11.8h | 0d | 0.29" | 30 |
| June 2026 | 93 | 82.7° / 57.6° | 12.7h | 0d | 0" | 29 |
| July 2026 | 92 | 86.8° / 59.4° | 12h | 0d | 0" | 28 |
| August 2026 | 91 | 88.3° / 59.7° | 11.1h | 0d | 0" | 28 |
| September 2026 | 94 | 82.3° / 58° | 10.4h | 0d | 0.14" | 28 |
| October 2026 | 89 | 79° / 53.5° | 8.3h | 2d | 0.34" | 28 |
Climate Trends
Average Temperature by Month
About the Concord climate charts
The temperature chart compares average monthly highs and lows at Concord, 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 Concord. 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 Concord, the warmest typical hour is 4 PM in July (87°F). The coldest is 7 AM in January (43°F).
- Fog: Fog or low cloud covers Concord in 29% of 6 AM hours in December, the foggiest month. It usually thins to a third of that by 4 PM. April mornings are the least foggy (5%).
- Wind: From March through September, wind at Concord typically builds after 2 PM. In May it peaks around 5 PM, averaging 10 mph with 3% of those hours windy, while mornings average 6 mph.
- Cloud Cover: July middays are the clearest at Concord (5% average cloud cover), and December middays are the cloudiest (38%).
- Solar Radiation: The strongest typical sun at Concord comes at 1 PM in July, averaging 994 W/m².
How to read the hourly heatmaps for Concord
This heatmap shows how average temperature at Concord 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 Concord. 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 Concord 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 Concord 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 Concord 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 Concord
- October 2026 recap: October 2026 at Concord 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 15.4 in. of rain to Concord, 83% of the 18.6 in. normal.
Location Details
Concord weather questions
Everything you need to know about weather and visiting Concord
What is the weather like at Concord today?
It's 53°F at Concord right now, with a comfort score of 77 (great). Monday's forecast high at Concord is 57°F, 8°F below the mid November normal of 65°F. The best window today is 8 AM to 11 AM, at about 54°F with a 6 mph wind (comfort 59).
What is the best month to visit Concord?
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Concord 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 3 months, from Jun 26 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 Concord?
July is the warmest month at Concord, 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 Concord?
Fog or low cloud covers Concord in 29% of 6 AM hours in December, the foggiest month. It usually thins to a third of that by 4 PM. April mornings are the least foggy (5%).
When is it windiest at Concord?
From March through September, wind at Concord typically builds after 2 PM. In May it peaks around 5 PM, averaging 10 mph with 3% of those hours windy, while mornings average 6 mph.
How much rain does Concord get?
January is the wettest month (3.8 in.), out of about 18.6 in. a year. The rainy season runs from Nov 20 to Mar 29, when a day has at least a 20% chance of measurable rain. That stretch brings 77% of the year's rain. The 2025-26 rain year (Oct. 1 to Sep. 30) brought 15.4 in. of rain to Concord, 83% of the 18.6 in. normal.
What kind of place is Concord?
Concord covers the broad, flat north end of the Diablo Valley. The Suisun Bay marshes run along its northern edge, and the foothills of Mount Diablo rise to the southeast. Its downtown grew around Todos Santos Plaza, the old town square that still hosts the weekly farmers market, and BART runs through the middle of the city. Most of Concord sits miles back from open water and well inland of the Briones Hills, so it runs hotter in summer than Martinez on the strait.
What is Concord weather like in November?
November at Concord averages a high of 65°F and a low of 44°F, with 1.9 in. of rain over about 6 rainy days. About 12% of morning hours are foggy. Afternoon wind averages 5 mph.
More about Concord weather
Guides that explain the weather here and nearby
- Concord Weather: Hot Inland Valley With Afternoon Marine Relief
- Red Flag Warning vs. Fire Weather Watch: What Each Alert Level Means
- What Does a Fire Weather Warning Mean? Terms and Thresholds Explained
- What Is the Delta Breeze? The Cool Air Current That Saves the Bay Area from Summer Heat
- What Is Tule Fog? California's Densest Fog Explained
- When Is the Bay Area Warmest? Warmest Month by City
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.
- Bay Area Air Quality Management District, Contra Costa County community page (updated Apr 21, 2017) (accessed 2026-10-27)
- Visit Concord, Farmers Market (accessed 2026-10-27)
- BART, Concord Station (accessed 2026-10-27)
- East Bay Regional Park District, Contra Costa Canal Trail (accessed 2026-10-27)
- California State Parks, Mount Diablo State Park (accessed 2026-10-27)
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