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The temperatures in Gullbringusysla in September are quite cold with temperatures between 7°C and 10°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Gullbringusysla. 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 Gullbringusysla can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Gullbringusysla in September 2025.
If you’re planning to visit Gullbringusysla in the near future, we highly recommend that you review the 14 day weather forecast for Gullbringusysla before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 2° / -1° | 10 | 8 | 13 | 138 mm | Awful | Gullbringusysla in January |
| February | 2° / -1° | 10 | 7 | 12 | 119 mm | Awful | Gullbringusysla in February |
| March | 3° / -1° | 10 | 7 | 14 | 118 mm | Awful | Gullbringusysla in March |
| April | 5° / 1° | 11 | 11 | 8 | 101 mm | Awful | Gullbringusysla in April |
| May | 9° / 4° | 9 | 20 | 3 | 88 mm | Awful | Gullbringusysla in May |
| June | 12° / 8° | 7 | 23 | 0 | 74 mm | Bad | Gullbringusysla in June |
| July | 14° / 9° | 7 | 24 | 0 | 82 mm | Ok | Gullbringusysla in July |
| August | 13° / 9° | 8 | 23 | 0 | 97 mm | Bad | Gullbringusysla in August |
| September | 10° / 7° | 11 | 18 | 1 | 135 mm | Bad | Gullbringusysla in September |
| October | 6° / 4° | 11 | 18 | 2 | 111 mm | Awful | Gullbringusysla in October |
| November | 3° / 1° | 10 | 11 | 9 | 96 mm | Awful | Gullbringusysla in November |
| December | 1° / -2° | 8 | 11 | 11 | 103 mm | Awful | Gullbringusysla in December |
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