Click on a day for an hourly weather forecast
The weather in Andermatt in May is very cold with temperatures between 0°C and 9°C, warm clothes are a must.
There’s going to be many days of rain during the month of May in Andermatt.
Andermatt should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
You can expect a few days of snow in Andermatt during May. It’s important to get out your snow boots and warm mittens to stay warm while you explore Andermatt.
Our weather forecast can give you a great sense of what weather to expect in Andermatt in May 2026.
If you’re planning to visit Andermatt in the near future, we highly recommend that you review the 14 day weather forecast for Andermatt before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -4° / -15° | 5 | 5 | 21 | 190 mm | Awful | Andermatt in January |
| February | -2° / -14° | 6 | 4 | 21 | 149 mm | Awful | Andermatt in February |
| March | 1° / -11° | 10 | 5 | 20 | 188 mm | Awful | Andermatt in March |
| April | 5° / -5° | 14 | 5 | 13 | 232 mm | Awful | Andermatt in April |
| May | 9° / 0° | 21 | 5 | 6 | 376 mm | Awful | Andermatt in May |
| June | 16° / 5° | 22 | 8 | 0 | 425 mm | Ok | Andermatt in June |
| July | 18° / 7° | 21 | 10 | 0 | 434 mm | Ok | Andermatt in July |
| August | 18° / 6° | 21 | 10 | 0 | 425 mm | Ok | Andermatt in August |
| September | 14° / 3° | 14 | 15 | 1 | 224 mm | Ok | Andermatt in September |
| October | 8° / -3° | 11 | 14 | 6 | 243 mm | Awful | Andermatt in October |
| November | 2° / -8° | 8 | 10 | 13 | 252 mm | Awful | Andermatt in November |
| December | -3° / -13° | 6 | 6 | 20 | 218 mm | Awful | Andermatt in December |