🇺🇸 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.
Warmer · San DiegoDrier · San Diego
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).
Keep planning
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.
More comparisons
More Chicago comparisons
Chicago vs New YorkChicago vs Los AngelesChicago vs MiamiChicago vs San FranciscoChicago vs Las VegasChicago vs Washington, D.C.