7 cities · avg annual temperature 13.2°C
| City | Population | Avg temp | Since 1900 |
|---|---|---|---|
| Bilbao | 354,860 | 13.6°C | +2.2° |
| Gasteiz / Vitoria | 235,661 | 11.2°C | +2.3° |
| Barakaldo | 98,460 | 13.6°C | +2.2° |
| Getxo | 80,770 | 13.4°C | +2.2° |
| Irun | 60,951 | 13.7°C | +2.3° |
| Santutxu | 60,000 | 13.6°C | +2.2° |
| San Sebastian | — | 13.7°C | +2.3° |