Spain
Bilbao sees feels-like daytime highs peak around 27.4°C in August and nighttime lows bottom out near 5.3°C in January. November is the wettest month (~89 mm), while July is the driest (~24 mm). For sunshine, July leads with about 74% clear skies.
Based on mild feels-like temperatures and low rain chances, the most comfortable months are September, June, and July — expect around 16.6–25.5°C with roughly 22% chance of rain on a given day in September.
| Month | Low / High °C | Rain % | Rainfall | Clear skies | Wind |
|---|---|---|---|---|---|
| January | 5.3° / 11.6° | 35% | 76 mm | 38% | 19.3 kph |
| February | 5.5° / 11.9° | 29% | 65 mm | 42% | 18.4 kph |
| March | 7.4° / 13.9° | 28% | 61 mm | 45% | 17.2 kph |
| April | 9.3° / 16.7° | 30% | 61 mm | 47% | 16.3 kph |
| May | 12.8° / 20.5° | 26% | 50 mm | 49% | 14.1 kph |
| June☀ | 16.4° / 23.6° | 18% | 37 mm | 60% | 12.7 kph |
| July☀ | 19.1° / 27.2° | 14% | 24 mm | 74% | 12.4 kph |
| August | 18.9° / 27.4° | 15% | 26 mm | 71% | 12.4 kph |
| September☀ | 16.6° / 25.5° | 22% | 44 mm | 58% | 13.6 kph |
| October | 13.5° / 20.5° | 30% | 73 mm | 47% | 16.2 kph |
| November | 9.8° / 15.4° | 35% | 89 mm | 39% | 18.3 kph |
| December | 6.4° / 11.9° | 35% | 80 mm | 38% | 19.3 kph |
Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).
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