Click on a day for an hourly weather forecast
The temperatures in Ardennen in May are quite cold with temperatures between 6°C and 16°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Ardennen. 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.
Our weather forecast can give you a great sense of what weather to expect in Ardennen in May 2025.
If you’re planning to visit Ardennen in the near future, we highly recommend that you review the 14 day weather forecast for Ardennen before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -1° | 10 | 10 | 11 | 110 mm | Awful | Ardennen in January |
| February | 5° / 0° | 8 | 11 | 9 | 87 mm | Awful | Ardennen in February |
| March | 9° / 2° | 8 | 19 | 4 | 81 mm | Awful | Ardennen in March |
| April | 13° / 4° | 5 | 23 | 1 | 62 mm | Ok | Ardennen in April |
| May | 16° / 6° | 8 | 23 | 0 | 107 mm | Ok | Ardennen in May |
| June | 20° / 10° | 7 | 23 | 0 | 111 mm | Ok | Ardennen in June |
| July | 21° / 12° | 7 | 24 | 0 | 101 mm | Ok | Ardennen in July |
| August | 22° / 12° | 5 | 26 | 0 | 93 mm | Good | Ardennen in August |
| September | 18° / 9° | 5 | 25 | 0 | 69 mm | Good | Ardennen in September |
| October | 13° / 6° | 7 | 24 | 0 | 80 mm | Bad | Ardennen in October |
| November | 8° / 3° | 10 | 17 | 3 | 100 mm | Awful | Ardennen in November |
| December | 5° / 1° | 12 | 12 | 8 | 124 mm | Awful | Ardennen in December |