United States of America
San Jose sees feels-like daytime highs peak around 31.6°C in July and nighttime lows bottom out near 7.5°C in December. February is the wettest month (~95 mm), while July is the driest (~1 mm). For sunshine, August leads with about 91% clear skies.
Based on mild feels-like temperatures and low rain chances, the most comfortable months are May, October, and September — expect around 15.7–26.9°C with roughly 7% chance of rain on a given day in May.
| Month | Low / High °C | Rain % | Rainfall | Clear skies | Wind |
|---|---|---|---|---|---|
| January | 7.7° / 17° | 26% | 94 mm | 46% | 9.9 kph |
| February | 9.4° / 18.1° | 27% | 95 mm | 46% | 10.2 kph |
| March | 11° / 20.6° | 24% | 76 mm | 50% | 10.7 kph |
| April | 12.6° / 23.3° | 14% | 34 mm | 58% | 11.3 kph |
| May☀ | 15.7° / 26.9° | 7% | 13 mm | 66% | 12.1 kph |
| June | 18.2° / 30.2° | 2% | 4 mm | 80% | 12.4 kph |
| July | 19.4° / 31.6° | 1% | 1 mm | 90% | 11.8 kph |
| August | 19.4° / 31.6° | 1% | 1 mm | 91% | 10.9 kph |
| September☀ | 18° / 30° | 2% | 5 mm | 86% | 10 kph |
| October☀ | 14.4° / 25.7° | 9% | 25 mm | 73% | 9.4 kph |
| November | 10.5° / 19.9° | 19% | 58 mm | 57% | 9.8 kph |
| December | 7.5° / 16.1° | 26% | 88 mm | 49% | 10.1 kph |
Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).
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