Click on a day for an hourly weather forecast
The temperatures in Wales in December are quite cold with temperatures between 5°C and 9°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Wales. 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 Wales can expect a few days of snow in December.
Our weather forecast can give you a great sense of what weather to expect in Wales in December 2024.
If you’re planning to visit Wales in the near future, we highly recommend that you review the 14 day weather forecast for Wales before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 4° | 8 | 20 | 3 | 86 mm | Awful | Wales in January |
| February | 8° / 4° | 8 | 18 | 3 | 77 mm | Awful | Wales in February |
| March | 10° / 4° | 6 | 24 | 1 | 62 mm | Ok | Wales in March |
| April | 12° / 6° | 5 | 25 | 0 | 48 mm | Ok | Wales in April |
| May | 15° / 8° | 5 | 26 | 0 | 71 mm | Good | Wales in May |
| June | 18° / 11° | 5 | 25 | 0 | 72 mm | Good | Wales in June |
| July | 20° / 13° | 5 | 26 | 0 | 77 mm | Good | Wales in July |
| August | 19° / 13° | 6 | 25 | 0 | 85 mm | Good | Wales in August |
| September | 18° / 12° | 4 | 26 | 0 | 56 mm | Good | Wales in September |
| October | 14° / 10° | 7 | 24 | 0 | 99 mm | Ok | Wales in October |
| November | 11° / 7° | 8 | 22 | 0 | 101 mm | Bad | Wales in November |
| December | 9° / 5° | 9 | 21 | 2 | 105 mm | Awful | Wales in December |