Anthony Chabot Regional Park Weather
Park • San Francisco Bay Area
Anthony Chabot Regional Park runs along the second line of East Bay hills, east of Lake Chabot, between Castro Valley and the Oakland hills. Its 3,304 acres hold grassland, chaparral and eucalyptus groves. The East Bay Regional Park District manages it, and the East Bay Skyline National Trail follows it end to end. Its family campground overlooks the lake, but the water itself, with the boat rentals and paved shore trails, belongs to neighboring Lake Chabot Regional Park. Trails connect the two parks.
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10-Day Forecast
Hour by hour
Hourly Forecast
Current Conditions
Comfort Breakdown
Anthony Chabot Regional Park weather today and through the year
It's 53°F at Anthony Chabot Regional Park right now (feels like 48°F), with 8 mph wind and a comfort score of 76. Monday's forecast high at Anthony Chabot Regional Park is 54°F, 11°F below the mid November normal of 65°F. No fog in the forecast for today at Anthony Chabot Regional Park. In November, 13% of morning hours here are foggy on average. The best window today is 9 AM to noon, at about 52°F with a 6 mph wind (comfort 55).
August is the warmest month at Anthony Chabot Regional Park, with an average high of 82°F. December is the coldest, with an average low of 40°F. December is the wettest month (4.0 in.), out of about 20.4 in. a year. By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Anthony Chabot Regional Park are August, September, and July. The best hours are usually 11 AM to 2 PM in August, 11 AM to 2 PM in September, and 1 PM to 4 PM in July.
Chabot sits one ridge back from the bay, behind the San Leandro Hills. On summer mornings, cool ocean air spills over from the San Leandro side and often fills the reservoir basin with low cloud. The higher meadows to the east, around Bort Meadow and the Grass Valley area, can sit in sun just above it.
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 Anthony Chabot Regional Park in the next few days
No active National Weather Service alerts for this location.
Fog
No fog in the forecast for today at Anthony Chabot Regional Park. In November, 13% of morning hours here are foggy on average.
Best time to go
The best window today is 9 AM to noon, at about 52°F with a 6 mph wind (comfort 55).
Hiking conditions
Best hiking day this week: Monday, with 9 daylight hours that are dry, 45 to 80°F, and under 18 mph wind. 4 of the next 7 days have at least 4 such hours.
Best day this week
Of the next 7 days, Friday looks best for Anthony Chabot Regional Park, with a 59°F high and midday comfort near 76. Today looks weakest (50).
Rain
Next good chance of rain: today (75%, about 0.26 in.).
Live weather map
Weather around Anthony Chabot Regional Park right now
Overcast and 53° at Anthony Chabot Regional Park right now.
About the live weather map for Anthony Chabot Regional Park
The map centers on Anthony Chabot Regional Park 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.
Anthony Chabot Regional Park vs nearby places
Typical summer conditions compared with Anthony Chabot Regional Park, 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 Anthony Chabot Regional Park |
|---|---|---|---|---|---|
| San Leandro | 2.9 mi | same | 28% | 9 mph | less summer morning fog (28% vs 39% of morning hours) |
| Castro Valley | 3.7 mi | +3°F | 26% | 9 mph | less summer morning fog (26% vs 39% of morning hours) |
| Hayward | 5.5 mi | +1°F | 24% | 9 mph | less summer morning fog (24% vs 39% of morning hours) |
| Ocean Beach | 21.9 mi | -17°F | 49% | 11 mph | about 17°F cooler on summer afternoons and about 30% more rain a year |
| Pacifica | 22.5 mi | -17°F | 56% | 9 mph | about 17°F cooler on summer afternoons and more summer morning fog (56% vs 39% of morning hours) |
| Rodeo Beach | 24.1 mi | -17°F | 48% | 13 mph | about 17°F cooler on summer afternoons and about 50% more rain a year |
Places with a climate like Anthony Chabot Regional Park's
- Wildcat Canyon Regional Park (16 mi away): similar temperatures through the year
- Portola Redwoods State Park (35 mi away): similar temperatures through the year
- North Berkeley (13 mi away): similar temperatures through the year
Climate Dashboard
Current conditions vs. NOAA normals and recent destination baseline
What the Anthony Chabot Regional Park climate comparisons mean
These cards compare recent conditions at Anthony Chabot Regional Park 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 Anthony Chabot Regional Park 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.
Anthony Chabot Regional Park weather by month
August is the warmest month at Anthony Chabot Regional Park, with an average high of 82°F. December is the coldest, with an average low of 40°F. December is the wettest month (4.0 in.), out of about 20.4 in. a year. Morning fog peaks in July, when fog or low cloud covers 45% of the hours from 6 to 10 AM. August has the clearest middays, with clouds covering about 15% of the sky from 11 AM to 3 PM.
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Anthony Chabot Regional Park are August, September, and July. The best hours are usually 11 AM to 2 PM in August, 11 AM to 2 PM in September, and 1 PM to 4 PM in July.
| Month | Avg high | Avg low | Rain | Rainy days | Morning fog | Midday cloud | Afternoon wind | Daylight | Comfort |
|---|---|---|---|---|---|---|---|---|---|
| Jan | 58°F | 41°F | 3.9 in | 8 | 15% | 34% | 6 mph | 9.8 h | 57 |
| Feb | 61°F | 42°F | 3.8 in | 8 | 12% | 28% | 7 mph | 10.7 h | 61 |
| Mar | 65°F | 44°F | 3.0 in | 7 | 16% | 32% | 8 mph | 11.9 h | 62 |
| Apr | 68°F | 46°F | 1.5 in | 5 | 20% | 26% | 9 mph | 13.2 h | 71 |
| May | 73°F | 49°F | 0.7 in | 3 | 25% | 26% | 10 mph | 14.2 h | 73 |
| Jun | 78°F | 53°F | 0.1 in | 2 | 33% | 16% | 10 mph | 14.8 h | 86 |
| Jul | 81°F | 56°F | 0.0 in | 0 | 45% | 15% | 10 mph | 14.5 h | 87 |
| Aug | 82°F | 56°F | 0.0 in | 1 | 40% | 15% | 9 mph | 13.6 h | 90 |
| Sep | 81°F | 55°F | 0.1 in | 2 | 27% | 17% | 9 mph | 12.3 h | 90 |
| Oct | 75°F | 51°F | 0.9 in | 4 | 15% | 18% | 7 mph | 11.1 h | 84 |
| Nov | 65°F | 45°F | 2.1 in | 6 | 13% | 23% | 6 mph | 10.0 h | 74 |
| Dec | 57°F | 40°F | 4.0 in | 8 | 19% | 35% | 6 mph | 9.6 h | 56 |
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 Anthony Chabot Regional Park average about 7°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 Anthony Chabot Regional Park has actually seen.
What makes Anthony Chabot Regional Park's weather different
When the fog burns off
11 AMwhen July fog usually thins (56% foggy at 8 AM)
Fog or low cloud covers Anthony Chabot Regional Park in 56% of 8 AM hours in July, the foggiest month. It usually thins to a third of that by 11 AM. February mornings are the least foggy (12%).
When the wind picks up
1 PMwhen afternoon wind builds, March–October
From March through October, wind at Anthony Chabot Regional Park typically builds after 1 PM. In May it peaks around 4 PM, averaging 11 mph with 3% of those hours windy, while mornings average 5 mph.
Daylight
9.6–14.8 hof daylight, Dec to Jun
Days at Anthony Chabot Regional Park 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 Anthony Chabot Regional Park
- Warm seasonJun 27 – Sep 27 · highs 79°F+
The warm season lasts about 3.1 months, from Jun 27 to Sep 27, when the average high is 79°F or warmer. Highs peak around Aug 8 at about 82°F.
- Cool seasonNov 29 – Feb 25 · highs 62°F or lower
The cool season runs from Nov 29 to Feb 25, 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 – Mar 31 · 78% of the year's rain
The rainy season runs from Nov 16 to Mar 31, when a day has at least a 20% chance of measurable rain. That stretch brings 78% 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 25.
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, Anthony Chabot Regional Park averaged 7 days a year at 90°F or hotter and no freezing nights. 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 131 mornings a year had 3 or more hours of fog or low cloud.
In the same record, the hottest day was Sep 9, 2026 (98°F) and the coldest night was Feb 20, 2026 (36°F). The wettest day was Nov 23, 2024 (1.90 in.), and the strongest 2 PM gust was 37 mph on Feb 4, 2025.
- 7days at 90°F or hotter
- 0nights at or below freezing
- 16days with ½ in. of rain or more
- 1afternoon with 20+ mph wind
- 131mornings with 3+ hours of fog or low cloud
- Hottest day98°FSep 9, 2026
- Coldest night36°FFeb 20, 2026
- Wettest day1.90 inNov 23, 2024
- Strongest 2 PM gust37 mphFeb 4, 2025
What shapes Anthony Chabot Regional Park's weather
Anthony Chabot is a long park, and conditions vary along it. Eucalyptus groves and wooded canyons stay shaded and cool, while the open grass ridges warm quickly and catch the afternoon west wind. Redwood Regional Park, to the north, sits closer to the crest and holds a damp redwood canyon. Chabot is drier and sunnier, with more grassland.
Fire and storms shape the park's year. Dry grass and eucalyptus make late summer and fall the riskiest stretch for fire. Winter storms can wash out trails here, and the park district closes damaged trails until they are repaired.
Tips for visiting Anthony Chabot Regional Park
Get a permit for the Garin connector
The six-mile section of the Chabot-to-Garin Regional Trail between Anthony Chabot and Cull Canyon crosses water district land. It requires a hiking permit from the East Bay Municipal Utility District.
Check for storm-damaged trails
After winter storms, the park district posts a list of damaged trails that are closed or off-limits to horses. Look it up before planning a long loop.
Camp with hot showers
The family campground has drive-in and walk-in tent sites, RV sites with hookups, and restrooms with hot showers.
Skip the swim at Lake Chabot
Swimming is never permitted at Lake Chabot next door. Rent a boat or fish for the trout and catfish the lake is stocked with instead.
Anthony Chabot Regional Park through the seasons
- Spring (March–May)
- Spring brings green grassland and good weather for long stretches of the Skyline Trail.
- Summer (June–August)
- Gray mornings near the lake can give way to sunny, breezy ridges. The campground hosts summer campfire programs open to non-campers.
- Fall (September–November)
- Fall is dry and warm, with the highest fire danger of the year among the grass and eucalyptus.
- Winter (December–February)
- Winter brings rain and muddy trails. Storms have closed trails here, so check the closure list before a long loop.
Activities and the weather that matters
- Camping: Spring and early summer nights are mild, and every site has a fire ring with a grill. Part of the campground closes for the winter storm season.
- Hiking and riding the Skyline Trail: About 70 miles of trails cross grassland and eucalyptus groves. Go on cool, clear days and avoid the trails right after heavy rain.
- Horseback riding: Chabot Equestrian Center and Skyline Ranch Equestrian Center offer boarding and lessons. Dry, mild days give the best footing.
Official sources and current conditions
- East Bay Regional Park District: Anthony Chabot Regional Park
- East Bay Regional Park District: Lake Chabot Regional Park
- East Bay Regional Park District: Alerts and closures
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 | 80 | 61.4° / 46.9° | 6.3h | 2d | 2.97" | 19 |
| December 2024 | 71 | 59.1° / 47° | 4.7h | 6d | 5.74" | 12 |
| January 2025 | 83 | 58.8° / 43.9° | 6.9h | 2d | 0.2" | 22 |
| February 2025 | 76 | 59.7° / 44.8° | 6.4h | 3d | 5.89" | 15 |
| March 2025 | 81 | 60.2° / 45.5° | 7.8h | 4d | 1.83" | 17 |
| April 2025 | 88 | 64.7° / 47.5° | 9.3h | 5d | 0.35" | 24 |
| May 2025 | 91 | 69.9° / 50.6° | 11.6h | 5d | 0.28" | 29 |
| June 2025 | 89 | 69.7° / 51.4° | 11.2h | 13d | 0" | 25 |
| July 2025 | 87 | 70.5° / 54.3° | 10.5h | 21d | 0" | 27 |
| August 2025 | 89 | 76.5° / 56.6° | 10.3h | 16d | 0" | 29 |
| September 2025 | 88 | 75.9° / 59.1° | 8.6h | 7d | 0.16" | 26 |
| October 2025 | 88 | 70.4° / 54.2° | 7.9h | 3d | 1.78" | 25 |
| November 2025 | 79 | 63.6° / 50.1° | 6.3h | 10d | 3.57" | 14 |
| December 2025 | 70 | 57.5° / 45.1° | 5.2h | 10d | 4.12" | 9 |
| January 2026 | 81 | 61° / 46.7° | 6.5h | 3d | 3.8" | 22 |
| February 2026 | 78 | 62.4° / 47.7° | 6.4h | 5d | 4.4" | 16 |
| March 2026 | 93 | 74.4° / 53.1° | 9.7h | 3d | 0.06" | 28 |
| April 2026 | 83 | 64.9° / 49.8° | 8.7h | 6d | 4.73" | 22 |
| May 2026 | 89 | 68.2° / 51.7° | 11.1h | 10d | 0.46" | 26 |
| June 2026 | 90 | 72.1° / 54° | 11.5h | 10d | 0.01" | 29 |
| July 2026 | 90 | 73.8° / 56.1° | 10.6h | 14d | 0" | 30 |
| August 2026 | 89 | 75.3° / 56.2° | 10.2h | 15d | 0" | 30 |
| September 2026 | 91 | 74.6° / 56.4° | 9.6h | 7d | 0.21" | 29 |
| October 2026 | 90 | 74.7° / 55.3° | 8.1h | 2d | 0.39" | 29 |
Climate Trends
Average Temperature by Month
About the Anthony Chabot Regional Park climate charts
The temperature chart compares average monthly highs and lows at Anthony Chabot Regional Park, 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 Anthony Chabot Regional Park. 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 Anthony Chabot Regional Park, the warmest typical hour is 3 PM in August (76°F). The coldest is 7 AM in February (45°F).
- Fog: Fog or low cloud covers Anthony Chabot Regional Park in 56% of 8 AM hours in July, the foggiest month. It usually thins to a third of that by 11 AM. February mornings are the least foggy (12%).
- Wind: From March through October, wind at Anthony Chabot Regional Park typically builds after 1 PM. In May it peaks around 4 PM, averaging 11 mph with 3% of those hours windy, while mornings average 5 mph.
- Cloud Cover: August middays are the clearest at Anthony Chabot Regional Park (15% average cloud cover), and December middays are the cloudiest (35%).
- Solar Radiation: The strongest typical sun at Anthony Chabot Regional Park comes at 1 PM in June, averaging 962 W/m².
How to read the hourly heatmaps for Anthony Chabot Regional Park
This heatmap shows how average temperature at Anthony Chabot Regional Park 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 Anthony Chabot Regional Park. 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 Anthony Chabot Regional Park 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 Anthony Chabot Regional Park 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 Anthony Chabot Regional Park 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 Anthony Chabot Regional Park
- October 2026 recap: October 2026 at Anthony Chabot Regional Park averaged a high of 75°F, 4°F warmer than October 2025 (70°F).
- Rain year: The 2025-26 rain year (Oct. 1 to Sep. 30) brought 23.1 in. of rain to Anthony Chabot Regional Park, 114% of the 20.4 in. normal.
Location Details
Anthony Chabot Regional Park weather questions
Everything you need to know about weather and visiting Anthony Chabot Regional Park
What is the weather like at Anthony Chabot Regional Park today?
It's 53°F at Anthony Chabot Regional Park right now, with a comfort score of 76 (great). Monday's forecast high at Anthony Chabot Regional Park is 54°F, 11°F below the mid November normal of 65°F. The best window today is 9 AM to noon, at about 52°F with a 6 mph wind (comfort 55).
What is the best month to visit Anthony Chabot Regional Park?
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Anthony Chabot Regional Park are August, September, and July. The best hours are usually 11 AM to 2 PM in August, 11 AM to 2 PM in September, and 1 PM to 4 PM in July. The warm season lasts about 3.1 months, from Jun 27 to Sep 27, when the average high is 79°F or warmer. Highs peak around Aug 8 at about 82°F.
What are the warmest and coldest months at Anthony Chabot Regional Park?
August is the warmest month at Anthony Chabot Regional Park, with an average high of 82°F. December is the coldest, with an average low of 40°F.
When does the fog burn off at Anthony Chabot Regional Park?
Fog or low cloud covers Anthony Chabot Regional Park in 56% of 8 AM hours in July, the foggiest month. It usually thins to a third of that by 11 AM. February mornings are the least foggy (12%).
When is it windiest at Anthony Chabot Regional Park?
From March through October, wind at Anthony Chabot Regional Park typically builds after 1 PM. In May it peaks around 4 PM, averaging 11 mph with 3% of those hours windy, while mornings average 5 mph.
How much rain does Anthony Chabot Regional Park get?
December is the wettest month (4.0 in.), out of about 20.4 in. a year. The rainy season runs from Nov 16 to Mar 31, when a day has at least a 20% chance of measurable rain. That stretch brings 78% of the year's rain. The 2025-26 rain year (Oct. 1 to Sep. 30) brought 23.1 in. of rain to Anthony Chabot Regional Park, 114% of the 20.4 in. normal.
What kind of place is Anthony Chabot Regional Park?
Anthony Chabot Regional Park runs along the second line of East Bay hills, east of Lake Chabot, between Castro Valley and the Oakland hills. Its 3,304 acres hold grassland, chaparral and eucalyptus groves. The East Bay Regional Park District manages it, and the East Bay Skyline National Trail follows it end to end. Its family campground overlooks the lake, but the water itself, with the boat rentals and paved shore trails, belongs to neighboring Lake Chabot Regional Park. Trails connect the two parks.
What is Anthony Chabot Regional Park weather like in November?
November at Anthony Chabot Regional Park averages a high of 65°F and a low of 45°F, with 2.1 in. of rain over about 6 rainy days. About 13% of morning hours are foggy. Afternoon wind averages 6 mph.
More about Anthony Chabot Regional Park 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.
- East Bay Regional Park District, Anthony Chabot Regional Park (accessed 2026-10-27)
- East Bay Regional Park District, Lake Chabot Regional Park (accessed 2026-10-27)
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