Climate in Bilbao: average temperature by month
In Bilbao the warmest month is August, with 23.4 °C on average in the afternoon; the coolest is January, with 11.1 °C.
The average of the weather stations San Sebastian - Igueldo (72 km) and Daroca (270 km); nearer ones count more.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 11.1 °C | 10.7 °C – 11.6 °C |
| February | 12.3 °C | 11.6 °C – 12.7 °C |
| March | 13.9 °C | 12.6 °C – 14.7 °C |
| April | 15.5 °C | 14.8 °C – 16.5 °C |
| May | 18.2 °C | 16.7 °C – 19.7 °C |
| June | 21.0 °C | 19.8 °C – 21.9 °C |
| July | 22.7 °C | 21.9 °C – 23.2 °C |
| August | 23.4 °C | 23.0 °C – 23.6 °C |
| September | 21.8 °C | 20.3 °C – 22.9 °C |
| October | 19.0 °C | 17.1 °C – 20.2 °C |
| November | 14.4 °C | 12.5 °C – 16.9 °C |
| December | 12.1 °C | 11.4 °C – 12.5 °C |