San Francisco County Weather Forecast
San Francisco County weather: 50°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
San Francisco County is a county in California. San Francisco County is a county in the United States. It has a population of about 810.000.
Right now it is 50°F (10°C) in San Francisco County with clear. It feels like 46°F. Today runs from 49°F to 68°F. Chance of precipitation is 0%. Sightseeing conditions score 8.8/10 - excellent - go now.
The best time to visit San Francisco County is May, June, July, August, September and October. The climate is Mediterranean. January, February and December tend to be the least comfortable months. October is the warmest month with average highs near 71°F, while January is the coldest with lows near 46°F.
The closest major airport is San Francisco International Airport (SFO), about 11 mi away. Nearby highlights include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve and Pinnacles National Park.
In plain terms. Today is slightly cooler than average for October. The forecast high of 68°F is 3.2°F below the 71°F typical for this month. The best window to be outside is roughly 1 PM to 4 PM, when temperature, rain chance and wind line up best. hiking is the strongest bet in San Francisco County today at 9.7/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for San Francisco County
Coastal Flood Advisory issued October 27 at 5:41AM PDT until October 30 at 5:00PM PDT by NWS San Francisco CA
Issued by NWS San Francisco CA
Weather in San Francisco County right now
Source: Open-Meteo. Updated 1:35 PM, Oct 28 local time.
See the San Francisco County forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for San Francisco County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Wed, Oct 28 | ☁️ Overcast | 68° / 49° | 0% | 10 mph | 5 |
| Thu, Oct 29 | ☁️ Overcast | 67° / 51° | 0% | 9 mph | 4 |
| Fri, Oct 30 | ☁️ Overcast | 63° / 56° | 1% | 12 mph | 4 |
| Sat, Oct 31 | ☁️ Overcast | 63° / 57° | 11% | 5 mph | 3 |
| Sun, Nov 1 | ☀️ Clear sky | 69° / 55° | 13% | 7 mph | 4 |
| Mon, Nov 2 | ☁️ Overcast | 70° / 57° | 1% | 5 mph | 3 |
| Tue, Nov 3 | ☁️ Overcast | 72° / 59° | 20% | 4 mph | 4 |
| Wed, Nov 4 | 🌧️ Heavy drizzle | 64° / 59° | 24% · 0,2 in | 15 mph | 3 |
| Thu, Nov 5 | ☁️ Overcast | 67° / 58° | 17% | 3 mph | 3 |
| Fri, Nov 6 | 🌦️ Light rain | 68° / 61° | 24% · 0,3 in | 19 mph | 3 |
| Sat, Nov 7 | 🌧️ Showers | 68° / 60° | 26% · 0,4 in | 12 mph | 4 |
| Sun, Nov 8 | 🌦️ Light drizzle | 68° / 62° | 23% · 0,0 in | 20 mph | 4 |
| Mon, Nov 9 | 🌦️ Light drizzle | 68° / 61° | 23% · 0,0 in | 7 mph | 3 |
| Tue, Nov 10 | ☁️ Overcast | 69° / 58° | 15% | 8 mph | 4 |
| Wed, Nov 11 | ☁️ Overcast | 69° / 60° | 23% | 10 mph | 4 |
| Thu, Nov 12 | ☀️ Clear sky | -- / -- | 23% | -- | — |
Climate in San Francisco County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 59° | 46° | 3,3 in | ★★★☆☆ |
| February | 59° | 47° | 5,6 in | ★★★☆☆ |
| March | 64° | 50° | 3,0 in | ★★★★☆ |
| April | 63° | 50° | 2,0 in | ★★★★☆ |
| May | 65° | 52° | 0,6 in | ★★★★★ |
| June | 66° | 54° | 0,0 in | ★★★★★ |
| July | 66° | 55° | 0,1 in | ★★★★★ |
| August | 68° | 57° | 0,0 in | ★★★★★ |
| September | 70° | 58° | 0,2 in | ★★★★★ |
| October | 71° | 55° | 0,6 in | ★★★★★ |
| November | 62° | 50° | 4,1 in | ★★★☆☆ |
| December | 58° | 47° | 5,8 in | ★★★☆☆ |
Climate type: Mediterranean. Source: Open-Meteo archive (ERA5).
Weather map for San Francisco County
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in San Francisco County
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit San Francisco County
Go in May, June, July, August, September and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Explore San Francisco County
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is San Francisco County?
San Francisco County is a county in California. Its coordinates are 37.7749, -122.4194. It lies in North America.
What is the weather like in San Francisco County right now?
It is currently 50°F (10°C) with clear. Humidity is 79% and wind is 6 mph.
When is the best time to visit San Francisco County?
May, June, July, August, September and October offer the most comfortable conditions in San Francisco County, which has a Mediterranean climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is San Francisco County in?
San Francisco County observes America/Los_Angeles (UTC-07:00). The local time is 1:35 PM.
How many people live in San Francisco County?
San Francisco County has a population of approximately 810.000.
What is the nearest airport to San Francisco County?
The closest airports are San Francisco International Airport (SFO), 11 mi away.
What are the top things to do in San Francisco County?
Popular options include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, Julia Pfeiffer Burns State Park and Emerald Bay State Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated October 28, 2026 at 1:35 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
