San Francisco Weather Forecast
San Francisco weather: 61°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for San Francisco
Derived from the current forecast window - not an official warning.
Peak gusts of 20 mph and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 0,1 in, 0,1 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-day forecast for San Francisco
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Wed, Sep 16 | 🌥️ Fog | 65° / 57° | 2% | 13 mph | 4 |
| Thu, Sep 17 | 🌦️ Light drizzle | 69° / 58° | 4% · 0,0 in | 10 mph | 6 |
| Fri, Sep 18 | ⛅ Partly cloudy | 67° / 56° | 0% | 13 mph | 7 |
| Sat, Sep 19 | ☁️ Overcast | 73° / 58° | 0% | 11 mph | 7 |
| Sun, Sep 20 | ☁️ Overcast | 65° / 59° | 1% | 13 mph | 6 |
| Mon, Sep 21 | ☁️ Overcast | 66° / 59° | 1% | 10 mph | 6 |
| Tue, Sep 22 | 🌤️ Mainly clear | 74° / 58° | 0% | 8 mph | 6 |
| Wed, Sep 23 | ☁️ Overcast | 78° / 59° | 0% | 7 mph | 6 |
| Thu, Sep 24 | ☁️ Overcast | 80° / 62° | 0% | 6 mph | 5 |
| Fri, Sep 25 | ☁️ Overcast | 78° / 64° | 3% | 10 mph | 6 |
| Sat, Sep 26 | ☁️ Overcast | 73° / 63° | 2% | 12 mph | 6 |
| Sun, Sep 27 | ☁️ Overcast | 71° / 62° | 3% | 11 mph | 6 |
| Mon, Sep 28 | ☀️ Clear sky | 66° / 60° | 3% | 14 mph | 6 |
| Tue, Sep 29 | ☁️ Overcast | 77° / 60° | 6% | 8 mph | 6 |
| Wed, Sep 30 | ☁️ Overcast | 85° / 63° | 6% | 5 mph | 6 |
| Thu, Oct 1 | 🌦️ Light drizzle | 75° / 63° | 0% · 0,1 in | 7 mph | 6 |
What this means for San Francisco
Today is slightly cooler than average for September. The forecast high of 65°F is 4.9°F below the 69°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 43°F - an unusually even climate through the year.
See the San Francisco forecast by time range
San Francisco weather - more answers
Explore San Francisco
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?
San Francisco is a city in California. Its coordinates are 37.7749, -122.4194. It lies in North America.
What is the weather like in San Francisco right now?
It is currently 61°F (16°C) with partly cloudy. Humidity is 82% and wind is 7 mph.
When is the best time to visit San Francisco?
May, June, July, August, September and October offer the most comfortable conditions in San Francisco, which has a Mediterranean climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is San Francisco in?
San Francisco observes America/Los_Angeles (UTC-07:00). The local time is 10:03 PM.
How many people live in San Francisco?
San Francisco has a population of approximately 810.000.
What is the nearest airport to San Francisco?
The closest airports are San Francisco International Airport (SFO), 11 mi away.
What are the top things to do in San Francisco?
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.
What places are in San Francisco?
San Francisco covers 8 places in this atlas, including Alcatraz Island, Golden Gate Bridge, San Francisco International Airport, Fisherman's Wharf, Mission District and ZIP Code 94102.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - 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 September 16, 2026 at 10:03 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
