Castro District Weather
Town • San Francisco Bay Area
The Castro, also known as Eureka Valley, lies at the foot of Twin Peaks where Market Street bends uphill toward the ridge, centered on Castro and 18th Streets. It is San Francisco's best-known LGBTQ neighborhood, home to the Castro Theatre, the Rainbow Honor Walk plaques, and a stop on the F Line streetcar. Corona Heights rises at its northern edge and Kite Hill on its western side. That makes the Castro a small, hill-ringed basin with Twin Peaks looming directly over it.
Plan your week
10-Day Forecast
Hour by hour
Hourly Forecast
Current Conditions
Comfort Breakdown
Castro District weather today and through the year
It's 54°F at Castro District right now (feels like 52°F), with 5 mph wind and a comfort score of 78. Monday's forecast high at Castro District is 56°F, 7°F below the mid November normal of 63°F. No fog in the forecast for today at Castro District. In November, 14% of morning hours here are foggy on average. The best window today is 8 AM to 11 AM, at about 53°F with a 7 mph wind (comfort 56).
September is the warmest month at Castro District, with an average high of 74°F. January is the coldest, with an average low of 43°F. December is the wettest month (5.2 in.), out of about 24.9 in. a year. By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Castro District are September, October, and August. The best hours are usually noon to 3 PM in September, noon to 3 PM in October, and noon to 3 PM in August.
The Castro sits right below the east face of Twin Peaks. Recreation and Parks' natural-areas plan singles out that ridge as the city's main summer fog divide. The west-facing slopes get the fog and strong winds, and the east-facing slopes get more sun and warmth. That often makes the Castro sunnier than the Haight, just a mile north on the other side of Corona Heights.
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 Castro District in the next few days
Active National Weather Service alerts
- High Surf Advisory until Tue 4:00 AM
Fog
No fog in the forecast for today at Castro District. In November, 14% of morning hours here are foggy on average.
Best time to go
The best window today is 8 AM to 11 AM, at about 53°F with a 7 mph wind (comfort 56).
Best day this week
Of the next 7 days, Friday looks best for Castro District, with a 61°F high and midday comfort near 80. Today looks weakest (40).
Rain
Next good chance of rain: today (72%, about 0.72 in.).
Live weather map
Weather around Castro District right now
Overcast and 54° at Castro District right now.
About the live weather map for Castro District
The map centers on Castro District 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.
Castro District vs nearby places
Typical summer conditions compared with Castro District, 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 Castro District |
|---|---|---|---|---|---|
| Corona Heights Park | 0.4 mi | same | 48% | 13 mph | same 3 km weather-model cell, so our hourly data cannot tell them apart |
| Noe Valley | 0.9 mi | same | 48% | 13 mph | same 3 km weather-model cell, so our hourly data cannot tell them apart |
| Haight-Ashbury | 0.9 mi | same | 48% | 13 mph | same 3 km weather-model cell, so our hourly data cannot tell them apart |
| Walnut Creek | 22.7 mi | +20°F | 11% | 8 mph | about 20°F warmer on summer afternoons and less summer morning fog (11% vs 48% of morning hours) |
| Danville | 24.1 mi | +19°F | 3% | 8 mph | about 19°F warmer on summer afternoons and less summer morning fog (3% vs 48% of morning hours) |
| Pleasant Hill | 24.2 mi | +21°F | 10% | 7 mph | about 21°F warmer on summer afternoons and less summer morning fog (10% vs 48% of morning hours) |
Places with a climate like Castro District's
- Davenport (54 mi away): similar temperatures through the year
- Año Nuevo Point (45 mi away): similar temperatures through the year
- Año Nuevo State Park (45 mi away): similar temperatures through the year
Climate Dashboard
Current conditions vs. NOAA normals and recent destination baseline
What the Castro District climate comparisons mean
These cards compare recent conditions at Castro District 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 Castro District 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.
Castro District weather by month
September is the warmest month at Castro District, with an average high of 74°F. January is the coldest, with an average low of 43°F. December is the wettest month (5.2 in.), out of about 24.9 in. a year. Morning fog peaks in July, when fog or low cloud covers 55% of the hours from 6 to 10 AM. October has the clearest middays, with clouds covering about 24% of the sky from 11 AM to 3 PM.
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Castro District are September, October, and August. The best hours are usually noon to 3 PM in September, noon to 3 PM in October, and noon to 3 PM in August.
| Month | Avg high | Avg low | Rain | Rainy days | Morning fog | Midday cloud | Afternoon wind | Daylight | Comfort |
|---|---|---|---|---|---|---|---|---|---|
| Jan | 57°F | 43°F | 4.7 in | 9 | 19% | 36% | 6 mph | 9.8 h | 55 |
| Feb | 60°F | 45°F | 4.8 in | 9 | 17% | 29% | 8 mph | 10.7 h | 57 |
| Mar | 62°F | 46°F | 3.5 in | 8 | 17% | 32% | 9 mph | 11.9 h | 60 |
| Apr | 64°F | 47°F | 1.7 in | 5 | 20% | 29% | 11 mph | 13.2 h | 66 |
| May | 67°F | 50°F | 0.8 in | 4 | 30% | 35% | 13 mph | 14.2 h | 63 |
| Jun | 70°F | 52°F | 0.2 in | 2 | 40% | 30% | 13 mph | 14.8 h | 71 |
| Jul | 71°F | 54°F | 0.0 in | 1 | 55% | 38% | 13 mph | 14.5 h | 71 |
| Aug | 73°F | 54°F | 0.1 in | 1 | 48% | 36% | 12 mph | 13.6 h | 79 |
| Sep | 74°F | 54°F | 0.1 in | 2 | 33% | 31% | 11 mph | 12.3 h | 86 |
| Oct | 71°F | 52°F | 1.1 in | 4 | 17% | 24% | 8 mph | 11.1 h | 81 |
| Nov | 63°F | 47°F | 2.8 in | 7 | 14% | 25% | 6 mph | 10.0 h | 66 |
| Dec | 57°F | 43°F | 5.2 in | 10 | 24% | 37% | 6 mph | 9.6 h | 34 |
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 Castro District average about 5°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 Castro District has actually seen.
What makes Castro District's weather different
When the fog burns off
61%of 9 AM hours foggy in July
Fog or low cloud covers Castro District in 61% of 9 AM hours in July, the foggiest month. It often lingers, and 31% of mid-afternoon hours are still foggy. November mornings are the least foggy (14%).
When the wind picks up
2 PMwhen afternoon wind builds, February–October
From February through October, wind at Castro District typically builds after 2 PM. In July it peaks around 6 PM, averaging 15 mph with 47% of those hours windy, while mornings average 8 mph.
Model resolution
6 placesshare one 3 km NOAA HRRR grid cell
Castro District shares one 3 km grid cell in NOAA's HRRR model with Noe Valley, Haight-Ashbury, Twin Peaks, Corona Heights Park and Forest Hill. The places in that cell range from 121 to 916 ft. The hourly fog, wind, cloud, and temperature patterns on this site are the same for all of them. Real differences between them come from hills, elevation, and wind exposure that the model cannot resolve.
Daylight
9.6–14.8 hof daylight, Dec to Jun
Days at Castro District range from about 9.6 hours in December to 14.8 hours in June. In mid-June the sun sets around 8:34 PM, and in mid-December around 4:58 PM.
Seasons at Castro District
- Warm seasonJul 3 – Oct 6 · highs 71°F+
The warm season lasts about 3.2 months, from Jul 3 to Oct 6, when the average high is 71°F or warmer. Highs peak around Sep 8 at about 74°F.
- Cool seasonNov 29 – Feb 28 · highs 61°F or lower
The cool season runs from Nov 29 to Feb 28, when the average high is 61°F or lower. The coldest nights come around Jan 8, with an average low near 43°F.
- Rainy seasonNov 6 – Apr 7 · 84% of the year's rain
The rainy season runs from Nov 6 to Apr 7, when a day has at least a 20% chance of measurable rain. That stretch brings 84% 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 Oct 28 and half of its annual total by Jan 23.
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, Castro District averaged 1 day a year at 90°F or hotter and no freezing nights. It averaged 15 days a year with at least half an inch of rain and 2 afternoons with wind of 20 mph or more at 2 PM. About 148 mornings a year had 3 or more hours of fog or low cloud.
In the same record, the hottest day was Sep 9, 2026 (94°F) and the coldest night was Feb 10, 2025 (39°F). The wettest day was Nov 23, 2024 (3.24 in.), and the strongest 2 PM gust was 44 mph on Mar 12, 2025.
- 1day at 90°F or hotter
- 0nights at or below freezing
- 15days with ½ in. of rain or more
- 2afternoons with 20+ mph wind
- 148mornings with 3+ hours of fog or low cloud
- Hottest day94°FSep 9, 2026
- Coldest night39°FFeb 10, 2025
- Wettest day3.24 inNov 23, 2024
- Strongest 2 PM gust44 mphMar 12, 2025
What shapes Castro District's weather
The Castro is the sheltered neighborhood closest to the Twin Peaks ridge, and that cuts both ways. On summer evenings the marine layer, the cool, moist ocean air that forms fog, can deepen enough to top Twin Peaks. The fog then pours down the east slope and over Upper Market into Eureka Valley before it reaches the Mission or Noe Valley. Watching the fog spill over the peaks from Castro Street is one of the city's classic summer sights.
Within the neighborhood, the flats along Market and Castro Streets are calmer and warmer than the hilltops around them. Kite Hill and Corona Heights stand up in the wind, while the streets below sit in the hills' shelter.
Tips for visiting Castro District
Ride the F Line streetcar in
The historic F Line streetcar runs along Market Street right into the Castro.
Save the Castro Theatre for a foggy evening
The ornate movie palace on Castro Street makes a good plan when fog rolls over the peaks.
Climb Kite Hill for a quick view
The small grassy knoll near 19th and Yukon Streets has city views. It is exposed, so expect wind in the afternoon.
Look down for the Rainbow Honor Walk
Golden plaques set into the sidewalks honor LGBTQ pioneers.
Castro District through the seasons
- Spring (March–May)
- Spring has fewer foggy mornings than summer, and afternoons turn breezier through May.
- Summer (June–August)
- Mornings often start gray, and the fog usually thins by midday, though some days stay gray into the afternoon. On many evenings fog spills over Twin Peaks and reaches the Castro before neighborhoods farther east.
- Fall (September–October)
- September is usually the warmest month. Warm, still days come when the wind turns offshore, blowing from inland toward the ocean, and evenings on Castro Street stay mild.
- Winter (November–February)
- Winter is the rainy season. Fog is less common than in summer, and clear days between storms bring sharp views from the surrounding hilltops.
Activities and the weather that matters
- Walking Castro and Market Streets: The flats are comfortable for walking most of the year. Summer evenings turn cool quickly once the fog crosses the ridge.
- Movies at the Castro Theatre: A film is the natural choice on gray, chilly summer evenings.
- Hilltop walks on Kite Hill and Corona Heights: Go on clear, calm mornings. Afternoon sea breezes make both summits windy.
Official sources and current conditions
- SF Recreation and Parks: Kite Hill
- SF Recreation and Parks: Corona Heights trail status
- SFMTA: F Market and Wharves
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 | 79 | 61.7° / 49.1° | 6.7h | 6d | 4.95" | 19 |
| December 2024 | 70 | 59° / 48.1° | 5.1h | 10d | 6.06" | 12 |
| January 2025 | 82 | 59.1° / 45.3° | 7h | 6d | 0.21" | 20 |
| February 2025 | 73 | 59.9° / 46.3° | 6.4h | 6d | 7.64" | 11 |
| March 2025 | 78 | 60.4° / 47.2° | 8h | 3d | 1.86" | 14 |
| April 2025 | 82 | 61.3° / 49° | 9.3h | 10d | 0.47" | 18 |
| May 2025 | 87 | 65.3° / 51.2° | 11.8h | 6d | 0.17" | 24 |
| June 2025 | 80 | 63.6° / 52.3° | 11.3h | 19d | 0.01" | 16 |
| July 2025 | 79 | 64° / 54.7° | 9.9h | 22d | 0" | 12 |
| August 2025 | 84 | 69.1° / 56.9° | 10.1h | 15d | 0" | 19 |
| September 2025 | 86 | 71.4° / 59.4° | 9h | 9d | 0.06" | 23 |
| October 2025 | 86 | 68.5° / 55.4° | 8h | 7d | 1.06" | 24 |
| November 2025 | 77 | 62.6° / 52° | 6.5h | 13d | 2.85" | 12 |
| December 2025 | 66 | 55.6° / 47.1° | 4.9h | 13d | 5.37" | 3 |
| January 2026 | 79 | 60.3° / 47.5° | 6.7h | 3d | 3.73" | 20 |
| February 2026 | 76 | 62.5° / 49.2° | 6.5h | 4d | 5.02" | 16 |
| March 2026 | 93 | 72.1° / 53.2° | 9.6h | 3d | 0.06" | 27 |
| April 2026 | 82 | 64.1° / 51.3° | 9.2h | 7d | 4.05" | 18 |
| May 2026 | 85 | 64.9° / 52.3° | 11h | 11d | 0.74" | 23 |
| June 2026 | 84 | 66.6° / 54.3° | 11.2h | 15d | 0.04" | 18 |
| July 2026 | 84 | 67.3° / 55.8° | 10.9h | 14d | 0" | 22 |
| August 2026 | 82 | 67.3° / 56.4° | 9.9h | 23d | 0" | 16 |
| September 2026 | 87 | 69.7° / 57.1° | 9.3h | 7d | 0.04" | 24 |
| October 2026 | 90 | 70.5° / 54.8° | 8.4h | 3d | 0.17" | 28 |
Climate Trends
Average Temperature by Month
About the Castro District climate charts
The temperature chart compares average monthly highs and lows at Castro District, 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 Castro District. 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 Castro District, the warmest typical hour is 2 PM in September (69°F). The coldest is 7 AM in January (46°F).
- Fog: Fog or low cloud covers Castro District in 61% of 9 AM hours in July, the foggiest month. It often lingers, and 31% of mid-afternoon hours are still foggy. November mornings are the least foggy (14%).
- Wind: From February through October, wind at Castro District typically builds after 2 PM. In July it peaks around 6 PM, averaging 15 mph with 47% of those hours windy, while mornings average 8 mph.
- Cloud Cover: October middays are the clearest at Castro District (24% average cloud cover), and July middays are the cloudiest (38%).
- Solar Radiation: The strongest typical sun at Castro District comes at 1 PM in June, averaging 871 W/m².
How to read the hourly heatmaps for Castro District
This heatmap shows how average temperature at Castro District 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 Castro District. 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 Castro District 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 Castro District 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 Castro District 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 Castro District
- October 2026 recap: October 2026 at Castro District averaged a high of 70°F, close to the 1991-2020 normal of 71°F. It brought 0.17 in. of rain, compared with a normal of 1.12 in.
- Rain year: The 2025-26 rain year (Oct. 1 to Sep. 30) brought 23.0 in. of rain to Castro District, 92% of the 24.9 in. normal.
Location Details
Castro District weather questions
Everything you need to know about weather and visiting Castro District
What is the weather like at Castro District today?
It's 54°F at Castro District right now, with a comfort score of 78 (great). Monday's forecast high at Castro District is 56°F, 7°F below the mid November normal of 63°F. The best window today is 8 AM to 11 AM, at about 53°F with a 7 mph wind (comfort 56).
What is the best month to visit Castro District?
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Castro District are September, October, and August. The best hours are usually noon to 3 PM in September, noon to 3 PM in October, and noon to 3 PM in August. The warm season lasts about 3.2 months, from Jul 3 to Oct 6, when the average high is 71°F or warmer. Highs peak around Sep 8 at about 74°F.
What are the warmest and coldest months at Castro District?
September is the warmest month at Castro District, with an average high of 74°F. January is the coldest, with an average low of 43°F.
When does the fog burn off at Castro District?
Fog or low cloud covers Castro District in 61% of 9 AM hours in July, the foggiest month. It often lingers, and 31% of mid-afternoon hours are still foggy. November mornings are the least foggy (14%).
When is it windiest at Castro District?
From February through October, wind at Castro District typically builds after 2 PM. In July it peaks around 6 PM, averaging 15 mph with 47% of those hours windy, while mornings average 8 mph.
How much rain does Castro District get?
December is the wettest month (5.2 in.), out of about 24.9 in. a year. The rainy season runs from Nov 6 to Apr 7, when a day has at least a 20% chance of measurable rain. That stretch brings 84% of the year's rain. The 2025-26 rain year (Oct. 1 to Sep. 30) brought 23.0 in. of rain to Castro District, 92% of the 24.9 in. normal.
What kind of place is Castro District?
The Castro, also known as Eureka Valley, lies at the foot of Twin Peaks where Market Street bends uphill toward the ridge, centered on Castro and 18th Streets. It is San Francisco's best-known LGBTQ neighborhood, home to the Castro Theatre, the Rainbow Honor Walk plaques, and a stop on the F Line streetcar. Corona Heights rises at its northern edge and Kite Hill on its western side. That makes the Castro a small, hill-ringed basin with Twin Peaks looming directly over it.
What is Castro District weather like in November?
November at Castro District averages a high of 63°F and a low of 47°F, with 2.8 in. of rain over about 7 rainy days. About 14% of morning hours are foggy. Afternoon wind averages 6 mph.
More about Castro District 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.
- SF Travel, The Castro (accessed 2026-10-27)
- SF Recreation and Parks, Significant Natural Resource Areas Management Plan, section 6.13 Kite Hill (final draft, February 2006) (accessed 2026-10-27)
- SF Recreation and Parks, Significant Natural Resource Areas Management Plan, section 6.8 Twin Peaks (final draft, February 2006) (accessed 2026-10-27)
- National Weather Service, Climate of San Francisco (NOAA Technical Memorandum NWS WR-126, Jan Null, 1995) (accessed 2026-10-27)
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