Temperatures in Porvoo range from -8.5 to 21.9 (Celcius).
Temperature
C
F
40
104
30
86
20
68
10
50
0
32
-10
14
-20
-4
J
F
M
A
M
J
J
A
S
O
N
D
Rainfall in Porvoo varies from 99.0 to 234.0 (mm/month).
Rain
mm
inch
500
20
400
16
300
12
200
8
100
4
0
0
J
F
M
A
M
J
J
A
S
O
N
D
