🇺🇸 Boise vs San Francisco 🇺🇸
Boise, United States vs San Francisco, United States — a side-by-side climate comparison to help you pick. Both cities run similar average temperatures year-round. San Francisco is drier, with roughly 12 fewer rainy days a year.
Drier · San Francisco
Climate at a glance
| 🇺🇸 Boise | 🇺🇸 San Francisco | |
|---|---|---|
| Avg annual high | 19°C | 19°C |
| Hottest month | July · 35°C | September · 24°C |
| Coldest month | January (-4°C low) | January (8°C low) |
| Rainy days / year | 76 | 64 |
| Snow | Rare | Rare |
| Best months to visit | May, September, October | June, July, August |
🇺🇸 Boise
Best around May, September, October. Hottest in July (35°C), coldest lows in January (-4°C).
🇺🇸 San Francisco
Best around June, July, August. Hottest in September (24°C), coldest lows in January (8°C).
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Frequently asked questions
Is Boise or San Francisco warmer?
Boise and San Francisco have very similar average temperatures.
Which is rainier, Boise or San Francisco?
Boise is rainier — San Francisco sees about 12 fewer rainy days per year.
When is the best time to visit Boise vs San Francisco?
Boise is best around May, September, October; San Francisco is best around June, July, August.