Overall on the next 14 days there will be 2 days with snow in Dieppe and a total of 1.3 cm of snow.
It will be snowy on the following days:
°F °C
Dieppe 
Weather in December 2025
Overall on the next 14 days there will be 2 days with snow in Dieppe and a total of 1.3 cm of snow.
It will be snowy on the following days:
The temperatures in Dieppe in December are quite cold with temperatures between 6°C and 9°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Dieppe. 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 Dieppe can expect a few days of snow in December.
Our weather forecast can give you a great sense of what weather to expect in Dieppe in December 2025.
If you’re planning to visit Dieppe in the near future, we highly recommend that you review the 14 day weather forecast for Dieppe before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 4° | 8 | 20 | 3 | 85 mm | Awful | Dieppe in January |
| February | 7° / 4° | 7 | 18 | 3 | 70 mm | Awful | Dieppe in February |
| March | 10° / 6° | 6 | 25 | 1 | 62 mm | Ok | Dieppe in March |
| April | 12° / 7° | 4 | 26 | 0 | 52 mm | Ok | Dieppe in April |
| May | 14° / 10° | 5 | 26 | 0 | 69 mm | Good | Dieppe in May |
| June | 17° / 13° | 6 | 24 | 0 | 93 mm | Good | Dieppe in June |
| July | 19° / 15° | 5 | 26 | 0 | 80 mm | Good | Dieppe in July |
| August | 19° / 16° | 6 | 25 | 0 | 97 mm | Good | Dieppe in August |
| September | 18° / 14° | 4 | 26 | 0 | 64 mm | Good | Dieppe in September |
| October | 15° / 12° | 6 | 25 | 0 | 100 mm | Good | Dieppe in October |
| November | 11° / 8° | 7 | 23 | 0 | 104 mm | Bad | Dieppe in November |
| December | 9° / 6° | 8 | 21 | 2 | 103 mm | Awful | Dieppe in December |
