Click on a day for an hourly weather forecast
The weather in Alta in May is very cold with temperatures between -1°C and 5°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Alta 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.
Alta is going to experience quite a number of days of snow during May. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!
Our weather forecast can give you a great sense of what weather to expect in Alta in May 2025.
If you’re planning to visit Alta in the near future, we highly recommend that you review the 14 day weather forecast for Alta before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -7° / -11° | 5 | 7 | 19 | 50 mm | Awful | Alta in January |
| February | -6° / -12° | 4 | 6 | 18 | 41 mm | Awful | Alta in February |
| March | -3° / -9° | 5 | 5 | 21 | 61 mm | Awful | Alta in March |
| April | 0° / -6° | 6 | 6 | 18 | 57 mm | Awful | Alta in April |
| May | 5° / -1° | 7 | 13 | 11 | 62 mm | Awful | Alta in May |
| June | 11° / 5° | 8 | 20 | 2 | 89 mm | Awful | Alta in June |
| July | 15° / 9° | 8 | 23 | 0 | 94 mm | Ok | Alta in July |
| August | 14° / 8° | 5 | 26 | 0 | 64 mm | Good | Alta in August |
| September | 10° / 5° | 6 | 23 | 1 | 50 mm | Ok | Alta in September |
| October | 3° / 0° | 8 | 12 | 12 | 59 mm | Awful | Alta in October |
| November | -1° / -5° | 5 | 10 | 15 | 49 mm | Awful | Alta in November |
| December | -4° / -8° | 4 | 8 | 19 | 41 mm | Awful | Alta in December |