San Francisco County Météo Prévisions
San Francisco County weather: 18°C, ciel dégagé. Par heure forecast, 14-day outlook, UV, air quality and the best time à visit.
Risk assessment for San Francisco County
Derived from the current forecast window – not an official warning.
Peak gusts of 45 km/h and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 0 mm, 0 mm across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-prévisions à San Francisco County
Maximales, minimales, précipitations et UV quotidiens.
| Jour | Conditions | Max / Min | Précip. | Vent | UV |
|---|---|---|---|---|---|
| ven., sep 18 | 🌥️ Brouillard | 23° / 14° | 0% | 27 km/h | 7 |
| sam., sep 19 | 🌥️ Brouillard | 21° / 14° | 2% | 30 km/h | 7 |
| dim., sep 20 | ☁️ Couvert | 19° / 13° | 4% | 17 km/h | 6 |
| lun., sep 21 | ☁️ Couvert | 20° / 15° | 0% | 17 km/h | 6 |
| mar., sep 22 | 🌤️ Plutôt dégagé | 24° / 15° | 0% | 17 km/h | 6 |
| mer., sep 23 | ☁️ Couvert | 27° / 16° | 0% | 11 km/h | 6 |
| jeu., sep 24 | ☁️ Couvert | 24° / 17° | 0% | 16 km/h | 6 |
| ven., sep 25 | ☁️ Couvert | 24° / 16° | 1% | 14 km/h | 6 |
| sam., sep 26 | 🌤️ Plutôt dégagé | 25° / 15° | 1% | 11 km/h | 6 |
| dim., sep 27 | ☀️ Ciel dégagé | 25° / 16° | 3% | 13 km/h | 6 |
| lun., sep 28 | ☁️ Couvert | 23° / 16° | 4% | 16 km/h | 6 |
| mar., sep 29 | ☁️ Couvert | 19° / 15° | 4% | 23 km/h | 6 |
| mer., sep 30 | ☁️ Couvert | 18° / 14° | 3% | 43 km/h | 6 |
| jeu., oct 1 | ☀️ Ciel dégagé | 21° / 14° | 0% | 25 km/h | 6 |
| ven., oct 2 | ☀️ Ciel dégagé | 26° / 15° | 3% | 14 km/h | 6 |
| sam., oct 3 | ⛅ Partiellement nuageux | 29° / 18° | 3% | 11 km/h | 6 |
What this means for San Francisco County
Today is slightly warmer than average for septembre. The forecast high of 23°C is 1.8°C above the 21°C typical for this month.
Pluie 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 juin à août.
The gap between the warmest and coldest month averages 6°C – an unusually even climate through the year.
Voir les prévisions de San Francisco County par période
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.
Météo 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 Amérique du Nord.
What is the weather like in San Francisco County maintenant?
It is currently 18°C (64°F) avec ciel dégagé. Humidité is 79% and wind is 26 km/h.
When is the best time à visit San Francisco County?
mai, juin, juillet, août, septembre and octobre offer the most comfortable conditions in San Francisco County, which has a Mediterranean climate. janvier, février and décembre 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 heure locale is 6:00 AM.
How many people live in San Francisco County?
San Francisco County has a population of approximately 810.000.
What is the nearest airport à San Francisco County?
The closest airports are San Francisco International Airport (SFO), 17 km away.
What are the top things à do in San Francisco County?
Popular options include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, juiia Pfeiffer Burns State Park and Emerald Bay State Park.
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| Place data | USPOTUS Atlas dataset (us-counties) – coordinates, hierarchy and facts. |
|---|---|
| Prévisions and observations | Open-Meteo (ECMWF and national models). |
| Qualité de l’air and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Météo 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 septembre 19, 2026 at 6:00 AM heure locale. Live blocks refresh every 15 minutes; climate averages monthly.
