🇺🇸 Chicago vs San Diego 🇺🇸
Chicago, United States vs San Diego, United States — a side-by-side climate comparison to help you pick. San Diego is the warmer of the two — about 7 degrees warmer on average across the year. San Diego is drier, with roughly 117 fewer rainy days a year.
Climate at a glance
| 🇺🇸 Chicago | 🇺🇸 San Diego | |
|---|---|---|
| Avg annual high | 14°C | 21°C |
| Hottest month | July (26°C) | September (26°C) |
| Coldest month | February (-7°C low) | January (9°C low) |
| Rainy days / year | 194 | 77 |
| Snow | Rare | Rare |
| Best months to visit | May, June, September | June, July, November |
🇺🇸 Chicago
Best around May, June, September. Hottest in July (26°C), coldest lows in February (-7°C).
🇺🇸 San Diego
Best around June, July, November. Hottest in September (26°C), coldest lows in January (9°C).
Frequently asked questions
Is Chicago or San Diego warmer?
San Diego is warmer overall, averaging about 7 degrees higher across the year.
Which is rainier, Chicago or San Diego?
Chicago is rainier — San Diego sees about 117 fewer rainy days per year.
When is the best time to visit Chicago vs San Diego?
Chicago is best around May, June, September; San Diego is best around June, July, November.