San Francisco County Klima and Average Vejr
Klima of San Francisco County: average temperatures, rainfall and seasons month by month.
Klima in San Francisco County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | 15° | 8° | 84 mm | ★★★☆☆ |
| februar | 15° | 9° | 141 mm | ★★★☆☆ |
| marts | 18° | 10° | 76 mm | ★★★★☆ |
| april | 17° | 10° | 52 mm | ★★★★☆ |
| maj | 19° | 11° | 15 mm | ★★★★★ |
| juni | 19° | 12° | 0 mm | ★★★★★ |
| juli | 19° | 13° | 2 mm | ★★★★★ |
| august | 20° | 14° | 1 mm | ★★★★★ |
| september | 21° | 14° | 4 mm | ★★★★★ |
| oktober | 22° | 13° | 19 mm | ★★★★★ |
| november | 17° | 10° | 104 mm | ★★★☆☆ |
| december | 14° | 9° | 148 mm | ★★★☆☆ |
Klima type: Mediterranean. Kilde: Open-Meteo archive (ERA5).
Recent extremes in San Francisco County
Højest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How San Francisco County compares med nearby places
Annual averages, and the difference against San Francisco County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Area Code 415 | 0 km | 14°C | about the same | 646 mm |
| San Francisco | 0 km | 14°C | about the same | 646 mm |
| ZIP Code 94102 | 0 km | 14°C | about the same | 646 mm |
| Mission District | 2 km | 14°C | about the same | 646 mm |
| ZIP Code 94133 | 3 km | 14°C | about the same | 646 mm |
Bedste rejsetid San Francisco County
Go in maj, juni, juli, august, september and oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januar, februar and december - expect the least comfortable mix of heat, cold or rain.
What this means for San Francisco County
Today is about average for september. The forecast high of 22°C is in line med the 21°C typical for this month.
Regn 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 juni og august.
The gap between the warmest and coldest month averages 6°C - an unusually even climate through the year.
What og pack, what og skip
- Normal seasonal clothing - nothing unusual is needed this week
- If your dates are flexible, avoid januar, februar and december - historically the least comfortable months here.
Resumé
San Francisco County is a county in California. San Francisco County is a county in the United States. Der bor omkring 810.000.
Lige nu er det 13°C (55°F) in San Francisco County med klart. Det føles som 12°C. I dag ligger temperaturen mellem 12°C og 22°C. Sandsynligheden for nedbør er 2%. Sightseeing conditions score 9.3/10 - fremragende — tag af sted nu.
Det bedste tidspunkt at besøge San Francisco County is maj, juni, juli, august, september and oktober. Klimaet er Mediterranean. januar, februar and december tend og be the least comfortable months. oktober is the warmest month med average highs near 22°C, while januar is the coldest med lows near 8°C.
The closest major airport is San Francisco International Airport (SFO), about 17 km away. Nearby highlights include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve and Pinnacles National Park.
Kort sagt. Today is about average for september. The forecast high of 22°C is in line med the 21°C typical for this month. The best window og be outside is roughly 11 AM og 2 PM, when temperature, rain chance and wind line up best. hiking is the strongest bet in San Francisco County today at 9.6/10. 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 County
| Type | County |
|---|---|
| State | California |
| Land | USA |
| Kontinent | Nordamerika |
| Koordinater | 37°46′29.6″N 122°25′9.8″W (37.7749, -122.4194) |
| Befolkning | 810.000 |
| Lokal tid | 3:38 AM (UTC-07:00) |
| Best months | maj, juni, juli, august, september and oktober |
| Klima | Mediterranean |
Vejr map for San Francisco County
Animated model layers. Pick a layer og load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Explore San Francisco County
Every topic we hold for this place, and the same topic for the places around it.
Klima 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 Nordamerika.
What is the weather like in San Francisco County lige nu?
It is currently 13°C (55°F) med klart. Luftfugtighed is 91% and wind is 10 km/h.
When is the best time og visit San Francisco County?
maj, juni, juli, august, september and oktober offer the most comfortable conditions in San Francisco County, which has a Mediterranean climate. januar, februar 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 3:38 AM.
How many people live in San Francisco County?
San Francisco County has a population of approximately 810.000.
What is the nearest airport og San Francisco County?
The closest airports are San Francisco International Airport (SFO), 17 km away.
What are the top things og 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.
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| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Prognose and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Vejr 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 15, 2026 at 3:38 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

