Click on a day for an hourly weather forecast
The weather in Ilulissat in September is very cold with temperatures between -3°C and 2°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Ilulissat during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Ilulissat is going to experience quite a number of days of snow during September. 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 Ilulissat in September 2025.
If you’re planning to visit Ilulissat in the near future, we highly recommend that you review the 14 day weather forecast for Ilulissat before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -13° / -19° | 2 | 14 | 15 | 24 mm | Awful | Ilulissat in January |
| February | -16° / -22° | 1 | 13 | 14 | 17 mm | Awful | Ilulissat in February |
| March | -13° / -21° | 2 | 14 | 15 | 21 mm | Awful | Ilulissat in March |
| April | -6° / -15° | 3 | 14 | 13 | 30 mm | Awful | Ilulissat in April |
| May | 0° / -7° | 3 | 18 | 10 | 33 mm | Awful | Ilulissat in May |
| June | 6° / 1° | 3 | 24 | 3 | 25 mm | Awful | Ilulissat in June |
| July | 8° / 4° | 4 | 27 | 1 | 43 mm | Ok | Ilulissat in July |
| August | 7° / 2° | 6 | 25 | 0 | 69 mm | Ok | Ilulissat in August |
| September | 2° / -3° | 5 | 17 | 8 | 43 mm | Awful | Ilulissat in September |
| October | -4° / -8° | 4 | 13 | 14 | 46 mm | Awful | Ilulissat in October |
| November | -9° / -14° | 3 | 13 | 14 | 47 mm | Awful | Ilulissat in November |
| December | -11° / -16° | 2 | 15 | 14 | 38 mm | Awful | Ilulissat in December |