14-day forecast — San Francisco
Updated every hour
Tue · Today · 27 Oct
Clear
+16°
+13°
9%
Wed · Tomorrow · 28 Oct
Partly cloudy
+17°
+12°
10%
Thursday · 29 Oct
Cloudy
+18°
+13°
16%
Friday · 30 Oct
Clear
+16°
+13°
10%
Saturday · 31 Oct
Cloudy
+16°
+13°
13%
Sunday · 1 Nov
Clear
+18°
+12°
3%
Monday · 2 Nov
Partly cloudy
+19°
+13°
6%
Tuesday · 3 Nov
Cloudy
+19°
+15°
8,4 mm
Wednesday · 4 Nov
Partly cloudy
+19°
+14°
9%
Thursday · 5 Nov
Cloudy
+18°
+14°
23%
Friday · 6 Nov
Cloudy
+17°
+16°
17%
Saturday · 7 Nov
Drizzle
+18°
+16°
5,2 mm
Sunday · 8 Nov
Showers
+17°
+15°
3,0 mm
Monday · 9 Nov
Partly cloudy
+18°
+14°
9%
About San Francisco
Baie californienne, climat doux, brouillards d’été caractéristiques.
CountryUnited States
RegionCalifornie
ContinentNorth America
Time zoneAmerica/Los_Angeles (-07:00)
Latitude37.7749°
Longitude-122.4194°
Air qualityFair (EAQI 25)
Climate in San Francisco in September
Normals 8 years · best time to visit · Open-MeteoBest time to visit San Francisco: April–October. With perfect weather, September is a recommended month to visit.
| August | September | October | |
|---|---|---|---|
| Average temperature | ▲ 16°C | 17°C | ▼ 16°C |
| Highest temperature | → 20°C | 20°C | → 20°C |
| Lowest temperature | → 14°C | 14°C | ▼ 13°C |
| Sea temperature | ▲ 15,4°C | 16,5°C | ▼ 16,2°C |
| Precipitation | ▲ 1 mm | 5 mm | ▲ 29 mm |
| Days with precipitation | ▲ 0 d | 1 d | ▲ 2 d |
| Humidity | ▲ 80% | 81% | ▼ 73% |
| Sunshine hours per day | ▼ 12,2 h | 11,3 h | ▼ 9,7 h |
| Cloud cover | ▼ 10% | 9% | ▲ 13% |
| UV index (midday) | ▼ 10 | 8 | ▼ 6 |
| Day length | 13:34 | 12:24 | 11:12 |
| Our rating | Perfect | Perfect | Good |
Temperature day by day in September mean + moving average
Precipitation day by day in September mm
UV index day by day in September midday value, clear-sky
Climate normals calculated from Open-Meteo (ERA5 archive 8 years, sea temperature Marine API). UV estimated from solar elevation.
Other destinations in North America
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New York
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Data source
Global weather models — international forecasts
Météo de San Francisco (United States) : conditions actuelles et prévisions à 24 h et 14 jours pour préparer votre voyage. Sur place actuellement, il fait +14°, clear, vent 12 km/h. Sur les 7 prochains jours, les températures varient de 12 à 19 °C avec 5 belles journées et très peu de pluie. Heure locale (fuseau America/Los_Angeles). Données Open-Meteo et WeatherAPI.