Average data for 10 years
1 September
Monday
+17°
+10°
2 September
Tuesday
+18°
+10°
3 September
Wednesday
+18°
+10°
4 September
Thursday
+18°
+10°
5 September
Friday
+18°
+10°
6 September
Saturday
+18°
+10°
7 September
Sunday
+18°
+11°
8 September
Monday
+18°
+11°
9 September
Tuesday
+18°
+10°
10 September
Wednesday
+17°
+10°
11 September
Thursday
+17°
+10°
12 September
Friday
+17°
+10°
13 September
Saturday
+17°
+10°
14 September
Sunday
+16°
+10°
15 September
Monday
+16°
+9°
16 September
Tuesday
+15°
+8°
17 September
Wednesday
+15°
+8°
18 September
Thursday
+15°
+8°
19 September
Friday
+15°
+9°
20 September
Saturday
+15°
+8°
21 September
Sunday
+15°
+8°
22 September
Monday
+15°
+8°
23 September
Tuesday
+15°
+8°
24 September
Wednesday
+15°
+7°
25 September
Thursday
+15°
+7°
26 September
Friday
+15°
+8°
27 September
Saturday
+15°
+8°
28 September
Sunday
+14°
+8°
29 September
Monday
+14°
+7°
30 September
Tuesday
+13°
+7°
Cities with similar weather in September
Finland
Helsinki
Latvia
Riga
Estonia
Tallinn
Norway
Oslo
Latvia
Yurmala
In September, the weather in Vastervik is typically warm. Average daily high temperature in September is about 16 degrees above zero. On average, Vastervik has 10 partly cloudy, 9 rainy, 7 sunny, and 4 cloudy days in September. The rains are usually moderate.