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The temperatures in Snafellsnes Og Hnappadalssysla in September are quite cold with temperatures between 6°C and 9°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Snafellsnes Og Hnappadalssysla. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Please note that Snafellsnes Og Hnappadalssysla can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Snafellsnes Og Hnappadalssysla in September 2025.
If you’re planning to visit Snafellsnes Og Hnappadalssysla in the near future, we highly recommend that you review the 14 day weather forecast for Snafellsnes Og Hnappadalssysla before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -2° | 10 | 4 | 18 | 109 mm | Awful | Snafellsnes Og Hnappadalssysla in January |
| February | 1° / -2° | 9 | 5 | 15 | 96 mm | Awful | Snafellsnes Og Hnappadalssysla in February |
| March | 1° / -2° | 9 | 5 | 17 | 105 mm | Awful | Snafellsnes Og Hnappadalssysla in March |
| April | 4° / 0° | 9 | 10 | 11 | 75 mm | Awful | Snafellsnes Og Hnappadalssysla in April |
| May | 7° / 3° | 9 | 18 | 4 | 71 mm | Awful | Snafellsnes Og Hnappadalssysla in May |
| June | 11° / 7° | 5 | 24 | 0 | 53 mm | Ok | Snafellsnes Og Hnappadalssysla in June |
| July | 12° / 8° | 6 | 25 | 0 | 52 mm | Ok | Snafellsnes Og Hnappadalssysla in July |
| August | 12° / 8° | 7 | 24 | 0 | 79 mm | Bad | Snafellsnes Og Hnappadalssysla in August |
| September | 9° / 6° | 10 | 19 | 1 | 119 mm | Bad | Snafellsnes Og Hnappadalssysla in September |
| October | 5° / 3° | 11 | 14 | 6 | 95 mm | Awful | Snafellsnes Og Hnappadalssysla in October |
| November | 2° / 0° | 10 | 8 | 12 | 88 mm | Awful | Snafellsnes Og Hnappadalssysla in November |
| December | 0° / -2° | 9 | 6 | 16 | 85 mm | Awful | Snafellsnes Og Hnappadalssysla in December |
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