San Francisco International Airport Climate and Average Weather
Climate of San Francisco International Airport: average temperatures, rainfall and seasons month by month.
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 | 73° | 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).
Recent extremes in San Francisco International Airport
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How San Francisco International Airport compares with nearby places
Annual averages, and the difference against San Francisco International Airport.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Mission District | 10 mi | 57°F | about the same | 25 in |
| San Francisco County | 11 mi | 57°F | about the same | 25 in |
| Area Code 415 | 11 mi | 57°F | about the same | 25 in |
| ZIP Code 94102 | 11 mi | 57°F | about the same | 25 in |
| ZIP Code 94133 | 13 mi | 57°F | about the same | 25 in |
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.
What this means for San Francisco International Airport
Today is slightly warmer than average for August. The forecast high of 79°F is 5.8°F above the 73°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 44°F - an unusually even climate through the year.
What to pack, what to skip
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
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 clear. It feels like 62°F. Today runs from 54°F to 79°F. Chance of precipitation is 1%. Sightseeing conditions score 9.5/10 - 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 slightly warmer than average for August. The forecast high of 79°F is 5.8°F above the 73°F typical for this month. The best window to be outside is roughly 10 AM to 1 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in San Francisco International Airport today at 9.8/10. 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.
Quick facts about San Francisco International Airport
| Type | Airport |
|---|---|
| City | San Francisco |
| Country | United States |
| Continent | North America |
| Coordinates | 37°37′16.7″N 122°22′44.4″W (37.6213, -122.379) |
| IATA code | SFO |
| Local time | 6:58 AM (UTC-07:00) |
| Best months | May, June, July, August, September and October |
| Climate | Mediterranean |
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.
Explore San Francisco International Airport
Every topic we hold for this place, and the same topic for the places around it.
Climate 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 clear. Humidity is 74% and wind is 9 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 6:58 AM.
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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President Donald Trump NBC News Interview : He talks about the economy, the ongoing war with IranData sources and methodology
| 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 August 24, 2026 at 6:58 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
