San Francisco International Airport Weather Forecast
San Francisco International Airport weather: 64°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
San Francisco International Airport is an airport in San Francisco. San Francisco International Airport (SFO) is a commercial airport.
Right now it is 64°F (18°C) in San Francisco International Airport with mainly clear. It feels like 60°F. Today runs from 55°F to 71°F. Chance of precipitation is 1%. Sightseeing conditions score 9.1/10 - excellent - go now.
The best time to visit San Francisco International Airport is May, June, July, August, September and October. The climate is Mediterranean. January, February and December tend to be the least comfortable months. September is the warmest month with average highs near 73°F, while January is the coldest with lows near 46°F.
Nearby highlights include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve and Pinnacles National Park.
In plain terms. Today is about average for September. The forecast high of 71°F is in line with the 73°F typical for this month. The best window to be outside is roughly 11 AM to 2 PM, when temperature, rain chance and wind line up best. photography is the strongest bet in San Francisco International Airport today at 9.5/10. 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.
Weather in San Francisco International Airport right now
Source: Open-Meteo. Updated 9:12 PM, Sep 18 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for San Francisco International Airport
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Sep 18 | 🌥️ Fog | 71° / 55° | 1% | 15 mph | 7 |
| Sat, Sep 19 | 🌥️ Fog | 70° / 55° | 1% | 16 mph | 7 |
| Sun, Sep 20 | ☁️ Overcast | 67° / 54° | 3% | 11 mph | 6 |
| Mon, Sep 21 | ☁️ Overcast | 68° / 60° | 0% | 11 mph | 6 |
| Tue, Sep 22 | 🌤️ Mainly clear | 75° / 58° | 0% | 10 mph | 6 |
| Wed, Sep 23 | ☁️ Overcast | 80° / 61° | 0% | 7 mph | 6 |
| Thu, Sep 24 | ☁️ Overcast | 75° / 62° | 0% | 10 mph | 6 |
| Fri, Sep 25 | ☁️ Overcast | 76° / 62° | 0% | 9 mph | 6 |
| Sat, Sep 26 | 🌤️ Mainly clear | 77° / 60° | 1% | 7 mph | 6 |
| Sun, Sep 27 | ☀️ Clear sky | 77° / 62° | 3% | 8 mph | 6 |
| Mon, Sep 28 | ☁️ Overcast | 73° / 62° | 4% | 10 mph | 6 |
| Tue, Sep 29 | ☁️ Overcast | 67° / 60° | 6% | 14 mph | 6 |
| Wed, Sep 30 | ☁️ Overcast | 64° / 58° | 6% | 27 mph | 6 |
| Thu, Oct 1 | ☀️ Clear sky | 70° / 56° | 0% | 16 mph | 6 |
| Fri, Oct 2 | ☀️ Clear sky | 80° / 60° | 3% | 9 mph | 6 |
| Sat, Oct 3 | ⛅ Partly cloudy | 85° / 65° | 3% | 7 mph | 6 |
Climate in San Francisco International Airport 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° | 3,0 in | ★★★☆☆ |
| February | 60° | 47° | 5,5 in | ★★★☆☆ |
| March | 64° | 49° | 3,1 in | ★★★★☆ |
| April | 64° | 49° | 2,0 in | ★★★★☆ |
| May | 66° | 51° | 0,6 in | ★★★★★ |
| June | 69° | 53° | 0,0 in | ★★★★★ |
| July | 71° | 55° | 0,1 in | ★★★★★ |
| August | 72° | 57° | 0,0 in | ★★★★★ |
| September | 73° | 57° | 0,2 in | ★★★★★ |
| October | 73° | 55° | 0,6 in | ★★★★★ |
| November | 63° | 50° | 3,3 in | ★★★★☆ |
| December | 59° | 48° | 5,7 in | ★★★☆☆ |
Climate type: Mediterranean. Source: Open-Meteo archive (ERA5).
Weather map for San Francisco International Airport
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 International Airport
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 International Airport
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 International Airport
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 International Airport?
San Francisco International Airport is an airport in San Francisco. Its coordinates are 37.6213, -122.379. It lies in North America.
What is the weather like in San Francisco International Airport right now?
It is currently 64°F (18°C) with mainly clear. Humidity is 84% and wind is 16 mph.
When is the best time to visit San Francisco International Airport?
May, June, July, August, September and October offer the most comfortable conditions in San Francisco International Airport, which has a Mediterranean climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is San Francisco International Airport in?
San Francisco International Airport observes America/Los_Angeles (UTC-07:00). The local time is 9:12 PM.
What are the top things to do in San Francisco International Airport?
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.
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| Place data | USPOTUS Atlas dataset (airports) - 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 18, 2026 at 9:12 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
