Castro-Urdiales Climate: Weather by Month and Best Time to Visit
Best months for Castro-Urdiales: July, August, September, June.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 12°C | 9°C | 119 mm | 15 | – | – | 5.3 |
| February | 12°C | 8°C | 104 mm | 14 | – | – | 5.6 |
| March | 14°C | 9°C | 98 mm | 13 | – | – | 5.9 |
| April | 15°C | 11°C | 89 mm | 14 | – | – | 6.0 |
| May | 17°C | 13°C | 69 mm | 13 | – | – | 6.6 |
| June | 20°C | 16°C | 56 mm | 10 | – | – | 7.4 |
| July | 22°C | 18°C | 46 mm | 9 | – | – | 7.8 |
| August | 23°C | 19°C | 49 mm | 9 | – | – | 7.8 |
| September | 21°C | 17°C | 67 mm | 11 | – | – | 7.5 |
| October | 19°C | 15°C | 103 mm | 14 | – | – | 6.6 |
| November | 15°C | 11°C | 152 mm | 16 | – | – | 5.5 |
| December | 13°C | 9°C | 116 mm | 15 | – | – | 5.5 |