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The temperatures in Sisimiut in August are quite cold with temperatures between 6°C and 10°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Sisimiut during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Sisimiut can expect a few days of snow in August.
Our weather forecast can give you a great sense of what weather to expect in Sisimiut in August 2025.
If you’re planning to visit Sisimiut in the near future, we highly recommend that you review the 14 day weather forecast for Sisimiut before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -10° / -14° | 3 | 9 | 19 | 48 mm | Awful | Sisimiut in January |
| February | -12° / -16° | 2 | 8 | 18 | 29 mm | Awful | Sisimiut in February |
| March | -10° / -16° | 3 | 8 | 20 | 40 mm | Awful | Sisimiut in March |
| April | -4° / -10° | 4 | 10 | 16 | 55 mm | Awful | Sisimiut in April |
| May | 2° / -3° | 5 | 14 | 12 | 36 mm | Awful | Sisimiut in May |
| June | 7° / 3° | 3 | 24 | 3 | 27 mm | Bad | Sisimiut in June |
| July | 11° / 6° | 5 | 26 | 1 | 61 mm | Ok | Sisimiut in July |
| August | 10° / 6° | 7 | 24 | 1 | 76 mm | Bad | Sisimiut in August |
| September | 5° / 2° | 7 | 15 | 7 | 57 mm | Awful | Sisimiut in September |
| October | 0° / -3° | 4 | 12 | 15 | 59 mm | Awful | Sisimiut in October |
| November | -5° / -9° | 4 | 7 | 18 | 61 mm | Awful | Sisimiut in November |
| December | -7° / -10° | 4 | 8 | 20 | 60 mm | Awful | Sisimiut in December |