Overall on the next 14 days there will be 3 days with snow in Calais and a total of 2.4 cm of snow.
It will be snowy on the following days:
°F °C
Calais 
Weather in December 2025
Overall on the next 14 days there will be 3 days with snow in Calais and a total of 2.4 cm of snow.
It will be snowy on the following days:
The temperatures in Calais in December are quite cold with temperatures between 6°C and 8°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Calais. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Please note that Calais can expect a few days of snow in December.
Our weather forecast can give you a great sense of what weather to expect in Calais in December 2025.
If you’re planning to visit Calais in the near future, we highly recommend that you review the 14 day weather forecast for Calais before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 4° | 9 | 18 | 4 | 89 mm | Awful | Calais in January |
| February | 7° / 4° | 8 | 17 | 4 | 73 mm | Awful | Calais in February |
| March | 9° / 6° | 7 | 23 | 1 | 59 mm | Bad | Calais in March |
| April | 11° / 7° | 4 | 26 | 1 | 43 mm | Ok | Calais in April |
| May | 14° / 10° | 4 | 27 | 0 | 59 mm | Good | Calais in May |
| June | 17° / 13° | 4 | 26 | 0 | 72 mm | Good | Calais in June |
| July | 19° / 15° | 5 | 26 | 0 | 72 mm | Good | Calais in July |
| August | 19° / 16° | 5 | 26 | 0 | 98 mm | Good | Calais in August |
| September | 18° / 14° | 4 | 26 | 0 | 67 mm | Good | Calais in September |
| October | 15° / 12° | 7 | 24 | 0 | 104 mm | Ok | Calais in October |
| November | 11° / 8° | 7 | 22 | 0 | 114 mm | Bad | Calais in November |
| December | 8° / 6° | 9 | 20 | 2 | 112 mm | Awful | Calais in December |
