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📊 Monthly Climate Overview
| Month | Max °C | Min °C | Rain mm | Rain Days | Sun h | Wind km/h | Sea °C |
|---|---|---|---|---|---|---|---|
| Jan | 14°C | 7.5°C | 108.9 mm | 9 | 7.2 h | 20.5 km/h | 11.8°C |
| Feb | 14.8°C | 8°C | 83.2 mm | 7 | 8.8 h | 23 km/h | 11.2°C |
| Mar | 15.2°C | 9.1°C | 88.1 mm | 9 | 9.4 h | 23.8 km/h | 10.9°C |
| Apr | 16.2°C | 10°C | 33.8 mm | 5 | 11.4 h | 26.4 km/h | 12°C |
| May | 17.2°C | 11.3°C | 15.1 mm | 2 | 12.8 h | 28.1 km/h | 13.5°C |
| Jun | 19.4°C | 12.7°C | 1.5 mm | 0 | 13.3 h | 28.2 km/h | 15.3°C |
| Jul | 19.4°C | 13.5°C | 1.1 mm | 0 | 13.2 h | 26.8 km/h | 14.8°C |
| Aug | 20.2°C | 14.4°C | 0.4 mm | 0 | 12.4 h | 25.8 km/h | 15.9°C |
| Sep | 21.4°C | 14.4°C | 3.1 mm | 1 | 11.6 h | 24.5 km/h | 16.8°C |
| Oct | 20.6°C | 13°C | 29.6 mm | 3 | 9.8 h | 21.7 km/h | 16.3°C |
| Nov | 16.6°C | 9.9°C | 49 mm | 6 | 8.5 h | 18.8 km/h | 13.8°C |
| Dec | 13.5°C | 7.9°C | 135.1 mm | 10 | 6.7 h | 20.1 km/h | 12.2°C |
📖Climate & Best Time to Visit San Francisco
San Francisco (USA) has a Mediterranean / mild temperate climate with an annual average of around 14 °C. Daytime highs average 17 °C, while nights cool to about 11 °C. The destination sees roughly 549 mm of rainfall per year and 10.4 hours of sunshine per day on average.
The Golden Gate Bridge, historic cable cars climbing the hills, Alcatraz in the bay and the former hippie quarter Haight-Ashbury.
Spring and autumn are ideal for a city break: June is the sunniest month with 13.3 hours of sun per day, and mild temperatures make exploring on foot comfortable. Peak summer (September, up to 21.4 °C) can get exhausting, while in January nights drop to 7.5 °C.
Rainfall varies through the year: peaks in December (10 rainy days), driest month is June (0).
🎟️ Top activities in San Francisco
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Frequently asked questions about San Francisco
When is the best time to visit San Francisco?
The best time to visit San Francisco: March to November – best in August (avg. 17.3 °C, 0 rainy days). Based on the monthly values for 2014 to 2023.
What are the temperatures in San Francisco?
The warmest month is September with an average of 17.9 °C and daytime highs around 21.4 °C. The coldest month is January with an average of 10.8 °C and night-time lows around 7.5 °C.
How many rainy days does San Francisco have?
December has the most rainy days with 10 rainy days. The driest month is June with 0 rainy days.
What is the sea temperature near San Francisco?
The water is warmest in September at an average of 16.8 °C and coolest in March at 10.9 °C.