Calais Climate: Weather by Month and Best Time to Visit
Best months for Calais: July, August, June, September.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 8°C | 5°C | 79 mm | 14 | – | – | 4.9 |
| February | 7°C | 4°C | 60 mm | 12 | – | – | 5.2 |
| March | 9°C | 6°C | 50 mm | 11 | – | – | 5.5 |
| April | 11°C | 8°C | 45 mm | 9 | – | – | 6.0 |
| May | 14°C | 10°C | 51 mm | 9 | – | – | 6.5 |
| June | 16°C | 13°C | 49 mm | 9 | – | – | 7.0 |
| July | 19°C | 15°C | 51 mm | 9 | – | – | 7.3 |
| August | 19°C | 16°C | 65 mm | 10 | – | – | 7.3 |
| September | 18°C | 14°C | 68 mm | 11 | – | – | 6.9 |
| October | 15°C | 12°C | 96 mm | 14 | – | – | 5.9 |
| November | 11°C | 8°C | 101 mm | 16 | – | – | 5.1 |
| December | 8°C | 6°C | 94 mm | 15 | – | – | 4.9 |