San Francisco, USAQuick decision
When to visit San Francisco?
🌞 Best time overall
June
🌡️ Optimal temperature
12°C–18°C in June
🌧 Least rain
1% rainy days in June
🌧 Wettest month
December (32%)
📅 Best score
8.0/10
By trip type
Best time by type of trip
Golden Gate & BaySeptember–October — Indian summer, cleared fog and open views.
NeighbourhoodsYear-round — Haight-Ashbury, Mission, Castro and Chinatown.
GastronomyYear-round — Fisherman's Wharf, fusion restaurants and markets.
VineyardsAugust–October — Napa and Sonoma 1h away, harvest and tastings.
Monthly climate data
San Francisco weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 8°C | 14°C | 34% | 4.1 | 8.0h | 5.4/10 |
| ⛅ February | 8°C | 14°C | 29% | 3.4 | 9.4h | 6.4/10 |
| ⛅ March | 9°C | 14°C | 36% | 3.3 | 10.6h | 6.4/10 |
| ⛅ April | 10°C | 15°C | 15% | 1.1 | 11.9h | 7.2/10 |
| ⛅ May | 11°C | 16°C | 8% | 0.6 | 12.9h | 7.5/10 |
| 🌤️ June | 12°C | 18°C | 1% | 0.0 | 13.7h | 8.0/10 |
| 🌤️ July | 13°C | 18°C | 0% | 0.0 | 13.0h | 7.9/10 |
| 🌤️ August | 14°C | 19°C | 1% | 0.0 | 12.1h | 8.0/10 |
| 🌤️ September | 14°C | 20°C | 4% | 0.1 | 11.3h | 8.0/10 |
| 🌤️ October | 13°C | 19°C | 10% | 1.0 | 9.9h | 7.6/10 |
| ⛅ November | 10°C | 16°C | 23% | 2.1 | 8.8h | 7.0/10 |
| ⛅ December | 8°C | 13°C | 32% | 4.3 | 8.0h | 5.3/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 15°C, 20% rainy days, 11.8h sunshine/day. Score: 7.0/10.
☀️ Summer (Jun–Aug) — Good time
Average 18°C, 1% rainy days, 12.9h sunshine/day. Score: 8.0/10.
🍂 Autumn (Sep–Nov) — Good time
Average 18°C, 12% rainy days, 10.0h sunshine/day. Score: 7.5/10.
❄️ Winter (Dec–Feb) — Acceptable
Average 14°C, 32% rainy days, 8.5h sunshine/day. Score: 5.7/10.
Accommodation
Find a place to stay in San Francisco
Check availability during the recommended period
Tip : off-peak months (December, January) are cheapest but weather is significantly worse.
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Activities and tours in San Francisco
Guided tours, skip-the-line tickets and local experiences.
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
June is ideal with 1% rainy days and 18°C. The months of June & August offer comparable conditions.
December is the wettest month with 32% rainy days.
Yes, June is the best month with an average of 18°C.
In winter, the average score is 5.7/10. Acceptable conditions for cultural visits.
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