Average data for 10 years
1 May
Wednesday
+10°
+6°
2 May
Thursday
+11°
+5°
3 May
Friday
+10°
+6°
4 May
Saturday
+11°
+6°
5 May
Sunday
+11°
+6°
6 May
Monday
+11°
+6°
7 May
Tuesday
+11°
+6°
8 May
Wednesday
+12°
+7°
9 May
Thursday
+13°
+7°
10 May
Friday
+14°
+9°
11 May
Saturday
+13°
+9°
12 May
Sunday
+11°
+9°
13 May
Monday
+13°
+8°
14 May
Tuesday
+11°
+7°
15 May
Wednesday
+13°
+7°
16 May
Thursday
+13°
+9°
17 May
Friday
+14°
+10°
18 May
Saturday
+15°
+10°
19 May
Sunday
+15°
+10°
20 May
Monday
+15°
+10°
21 May
Tuesday
+16°
+10°
22 May
Wednesday
+15°
+11°
23 May
Thursday
+15°
+11°
24 May
Friday
+16°
+11°
25 May
Saturday
+17°
+10°
26 May
Sunday
+14°
+11°
27 May
Monday
+14°
+10°
28 May
Tuesday
+15°
+10°
29 May
Wednesday
+15°
+9°
30 May
Thursday
+17°
+11°
31 May
Friday
+18°
+12°
In May, the weather in Helsinki is typically warm. Average daily high temperature in May is about 14 degrees above zero. On average, Helsinki has 12 partly cloudy, 10 sunny, 8 rainy, and 1 cloudy day in May. The rains are usually light.