San Francisco County Väder Prognos
San Francisco County weather: 16°C, mest klart. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
Will it rain in San Francisco County?
No - rain is unlikely in San Francisco County today.
Regn is very unlikely today - plans do not need a backup.
Over the next 7 days, about 0 mm of precipitation is forecast.
The next 7 days look unusually dry - roughly 0% of a normal september week (0 mm against 1 mm).
16-day forecast for San Francisco County
Max / Min; Nederb.; UV
| Dag | Förhållanden | Max / Min | Nederb. | Vind | UV |
|---|---|---|---|---|---|
| tor, sep 17 | ☁️ Mulet | 20° / 15° | 5% | 19 km/h | 6 |
| fre, sep 18 | 🌥️ Dimma | 19° / 14° | 1% | 28 km/h | 7 |
| lör, sep 19 | ☁️ Mulet | 22° / 15° | 3% | 18 km/h | 7 |
| sön, sep 20 | ☁️ Mulet | 18° / 15° | 0% | 22 km/h | 6 |
| mån, sep 21 | ☁️ Mulet | 20° / 15° | 1% | 19 km/h | 6 |
| tis, sep 22 | ☁️ Mulet | 23° / 14° | 0% | 12 km/h | 6 |
| ons, sep 23 | ☁️ Mulet | 27° / 16° | 0% | 11 km/h | 6 |
| tor, sep 24 | ☁️ Mulet | 22° / 16° | 1% | 17 km/h | 6 |
| fre, sep 25 | ☁️ Mulet | 18° / 15° | 2% | 33 km/h | 6 |
| lör, sep 26 | ☁️ Mulet | 18° / 14° | 3% | 31 km/h | 6 |
| sön, sep 27 | ⛅ Delvis molnigt | 18° / 15° | 5% | 31 km/h | 6 |
| mån, sep 28 | ⛅ Delvis molnigt | 22° / 14° | 10% | 18 km/h | 6 |
| tis, sep 29 | ☀️ Klart | 25° / 15° | 6% | 12 km/h | 6 |
| ons, sep 30 | ☀️ Klart | 25° / 15° | 5% | 16 km/h | 6 |
| tor, okt 1 | ⛅ Delvis molnigt | 25° / 15° | 10% | 13 km/h | 6 |
| fre, okt 2 | ☀️ Klart | -- / -- | 10% | -- | — |
What this means for San Francisco County
Today is about average for september. The forecast high of 20°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 och augusti.
The gap between the warmest and coldest month averages 6°C - an unusually even climate through the year.
What och pack, what och skip
- sönglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid januari, februari and december - historically the least comfortable months here.
Se prognosen för San Francisco County per tidsintervall
San Francisco County weather - more answers
Explore San Francisco County
Every topic we hold for this place, and the same topic for the places around it.
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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 just nu?
It is currently 16°C (60°F) med mest klart. Luftfuktighet is 93% and wind is 10 km/h.
When is the best time och visit San Francisco County?
maj, juni, juli, augusti, september and oktober offer the most comfortable conditions in San Francisco County, which has a Mediterranean climate. januari, februari 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 5:11 AM.
How many people live in San Francisco County?
San Francisco County has a population of approximately 810.000.
What is the nearest airport och San Francisco County?
The closest airports are San Francisco International Airport (SFO), 17 km away.
What are the top things och 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. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Väder 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 17, 2026 at 5:11 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
