County in California

San Francisco County Klima and Average Vejr

Klima of San Francisco County: average temperatures, rainfall and seasons month by month.

🌙 13°C now🕔 3:38 AM local📅 Best: maj, juni, juli, august, september and oktober👥 810.000

Klima in San Francisco County month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

janfebmaraprmajjunjulaugsepoktnovdecLine: average high · Bars: rainfall
MånedAvg highAvg lowRegnfallRating
januar15°84 mm★★★☆☆
februar15°141 mm★★★☆☆
marts18°10°76 mm★★★★
april17°10°52 mm★★★★
maj19°11°15 mm★★★★★
juni19°12°0 mm★★★★★
juli19°13°2 mm★★★★★
august20°14°1 mm★★★★★
september21°14°4 mm★★★★★
oktober22°13°19 mm★★★★★
november17°10°104 mm★★★☆☆
december14°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.

Hottest day38°Cokt 1, 2024
Coldest night4°Cjan 27, 2025
Wettest day58 mmnov 22, 2024

How San Francisco County compares med nearby places

Annual averages, and the difference against San Francisco County.

PlaceDistanceAvg tempvs hereAnnual rain
Area Code 4150 km14°Cabout the same646 mm
San Francisco0 km14°Cabout the same646 mm
ZIP Code 941020 km14°Cabout the same646 mm
Mission District2 km14°Cabout the same646 mm
ZIP Code 941333 km14°Cabout the same646 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.

januar★★★☆☆
februar★★★☆☆
marts★★★★
april★★★★
maj★★★★★
juni★★★★★
juli★★★★★
august★★★★★
september★★★★★
oktober★★★★★
november★★★☆☆
december★★★☆☆

What this means for San Francisco County

Compared med normal

Today is about average for september. The forecast high of 22°C is in line med the 21°C typical for this month.

Regn chance explained

Regn is very unlikely today - plans do not need a backup.

Rejser and driving

No weather-related travel disruption is expected today. Roads and airports should run normally.

Worth knowing

Northern Hemisphere, so peak summer falls in juni og august.

Worth knowing

The gap between the warmest and coldest month averages 6°C - an unusually even climate through the year.

What og pack, what og skip

Pack for the next 7 days
  • Normal seasonal clothing - nothing unusual is needed this week
Worth avoiding
  • 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

TypeCounty
StateCalifornia
LandUSA
KontinentNordamerika
Koordinater37°46′29.6″N 122°25′9.8″W (37.7749, -122.4194)
Befolkning810.000
Lokal tid3:38 AM (UTC-07:00)
Best monthsmaj, juni, juli, august, september and oktober
KlimaMediterranean

Vejr map for San Francisco County

Animated model layers. Pick a layer og load it.

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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.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts.
Prognose and observationsOpen-Meteo (ECMWF and national models).
Luftkvalitet and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Klima averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Vejr Service.
MethodScores, 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.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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