Average data for 10 years
1 September
Sunday
+7°
+7°
2 September
Monday
+7°
+6°
3 September
Tuesday
+7°
+5°
4 September
Wednesday
+6°
+6°
5 September
Thursday
+7°
+6°
6 September
Friday
+7°
+7°
7 September
Saturday
+7°
+6°
8 September
Sunday
+7°
+7°
9 September
Monday
+7°
+7°
10 September
Tuesday
+7°
+7°
11 September
Wednesday
+7°
+7°
12 September
Thursday
+8°
+7°
13 September
Friday
+7°
+6°
14 September
Saturday
+7°
+6°
15 September
Sunday
+7°
+5°
16 September
Monday
+7°
+7°
17 September
Tuesday
+7°
+6°
18 September
Wednesday
+6°
+6°
19 September
Thursday
+7°
+6°
20 September
Friday
+6°
+6°
21 September
Saturday
+7°
+5°
22 September
Sunday
+6°
+5°
23 September
Monday
+7°
+5°
24 September
Tuesday
+6°
+6°
25 September
Wednesday
+7°
+6°
26 September
Thursday
+6°
+6°
27 September
Friday
+6°
+5°
28 September
Saturday
+5°
+5°
29 September
Sunday
+6°
+5°
30 September
Monday
+5°
+5°
In September, the weather in Jan Mayen is typically cold. Average daily high temperature in September is about 7 degrees above zero. On average, Jan Mayen has 23 rainy, 6 cloudy, and 1 sunny day in September. The rains are usually heavy. September as well as January, May, August, and October is considered the most uncomfortable time to visit Jan Mayen.