Weather in Helsinki for a month

M
T
W
T
F
S
S
21 may
+17
+11
22
+21
+11
23
+22
+13
+20
min: +11
+16
+10
+17
+11
+21
+13
+17
+12
+19
+12
+21
+14
+18
+15
+17
+14
+18
+15
3
+15
+12
4
+14
+12
5
+17
+14
6
+16
+13
7
+17
+13
8
+19
+12
9
+16
+12
10
+16
+11
11
+20
+13
12
+15
+13
13
+16
+11
14
+17
+11
15
+15
+12
16
+15
+12
17
+16
+12
18
+17
+15
19
+15
+13
20
+15
+11
21
+15
+13
22
+15
+12
23
24

Geomagnetic field

T, 24 may
2 points
Small perturbations
F, 25 may
3 points
Weak geomagnetic storm
S, 26 may
2 points
Small perturbations