Click on a day for an hourly weather forecast
The temperatures in Langesund in May are quite cold with temperatures between 9°C and 12°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Langesund during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Langesund in May 2026.
If you’re planning to visit Langesund in the near future, we highly recommend that you review the 14 day weather forecast for Langesund before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 2° / -1° | 5 | 15 | 10 | 123 mm | Awful | Langesund in January |
| February | 1° / -1° | 5 | 13 | 10 | 101 mm | Awful | Langesund in February |
| March | 4° / 1° | 6 | 19 | 6 | 83 mm | Awful | Langesund in March |
| April | 8° / 5° | 4 | 25 | 1 | 53 mm | Ok | Langesund in April |
| May | 12° / 9° | 7 | 24 | 0 | 106 mm | Bad | Langesund in May |
| June | 16° / 13° | 5 | 25 | 0 | 94 mm | Good | Langesund in June |
| July | 18° / 15° | 7 | 24 | 0 | 126 mm | Ok | Langesund in July |
| August | 18° / 15° | 8 | 23 | 0 | 164 mm | Ok | Langesund in August |
| September | 15° / 12° | 8 | 22 | 0 | 145 mm | Ok | Langesund in September |
| October | 11° / 8° | 10 | 21 | 0 | 167 mm | Bad | Langesund in October |
| November | 7° / 5° | 9 | 18 | 3 | 158 mm | Awful | Langesund in November |
| December | 3° / 1° | 9 | 15 | 7 | 134 mm | Awful | Langesund in December |