Finland climate guide

Temperature in Finland (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
-4°C maximum daytime temperature in January in Finland (Helsinki)-4
-3°C maximum daytime temperature in February in Finland (Helsinki)-3
1°C maximum daytime temperature in March in Finland (Helsinki)1
7°C maximum daytime temperature in April in Finland (Helsinki)7
15°C maximum daytime temperature in May in Finland (Helsinki)15
19°C maximum daytime temperature in June in Finland (Helsinki)19
21°C maximum daytime temperature in July in Finland (Helsinki)21
20°C maximum daytime temperature in August in Finland (Helsinki)20
14°C maximum daytime temperature in September in Finland (Helsinki)14
9°C maximum daytime temperature in October in Finland (Helsinki)9
3°C maximum daytime temperature in November in Finland (Helsinki)3
-1°C maximum daytime temperature in December in Finland (Helsinki)-1
Min temperature (night-time)
-10°C minimum night-time temperature in January in Finland (Helsinki)-10
-10°C minimum night-time temperature in February in Finland (Helsinki)-10
-6°C minimum night-time temperature in March in Finland (Helsinki)-6
-1°C minimum night-time temperature in April in Finland (Helsinki)-1
5°C minimum night-time temperature in May in Finland (Helsinki)5
10°C minimum night-time temperature in June in Finland (Helsinki)10
12°C minimum night-time temperature in July in Finland (Helsinki)12
11°C minimum night-time temperature in August in Finland (Helsinki)11
7°C minimum night-time temperature in September in Finland (Helsinki)7
3°C minimum night-time temperature in October in Finland (Helsinki)3
-2°C minimum night-time temperature in November in Finland (Helsinki)-2
-7°C minimum night-time temperature in December in Finland (Helsinki)-7
Sea temperature
1°C sea temperature in January in Finland (Helsinki)1
-1°C sea temperature in February in Finland (Helsinki)-1
-1°C sea temperature in March in Finland (Helsinki)-1
0°C sea temperature in April in Finland (Helsinki)0
5°C sea temperature in May in Finland (Helsinki)5
10°C sea temperature in June in Finland (Helsinki)10
12°C sea temperature in July in Finland (Helsinki)12
16°C sea temperature in August in Finland (Helsinki)16
14°C sea temperature in September in Finland (Helsinki)14
9°C sea temperature in October in Finland (Helsinki)9
6°C sea temperature in November in Finland (Helsinki)6
3°C sea temperature in December in Finland (Helsinki)3

Sunshine & Daylight in Finland

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
7 hours of daylight per day in January in Finland (Helsinki)7
9 hours of daylight per day in February in Finland (Helsinki)9
12 hours of daylight per day in March in Finland (Helsinki)12
15 hours of daylight per day in April in Finland (Helsinki)15
17 hours of daylight per day in May in Finland (Helsinki)17
19 hours of daylight per day in June in Finland (Helsinki)19
18 hours of daylight per day in July in Finland (Helsinki)18
16 hours of daylight per day in August in Finland (Helsinki)16
13 hours of daylight per day in September in Finland (Helsinki)13
10 hours of daylight per day in October in Finland (Helsinki)10
7 hours of daylight per day in November in Finland (Helsinki)7
6 hours of daylight per day in December in Finland (Helsinki)6

Rainfall in Finland

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
20 days with some rainfall in January in Finland (Helsinki)20
17 days with some rainfall in February in Finland (Helsinki)17
16 days with some rainfall in March in Finland (Helsinki)16
13 days with some rainfall in April in Finland (Helsinki)13
10 days with some rainfall in May in Finland (Helsinki)10
11 days with some rainfall in June in Finland (Helsinki)11
14 days with some rainfall in July in Finland (Helsinki)14
16 days with some rainfall in August in Finland (Helsinki)16
17 days with some rainfall in September in Finland (Helsinki)17
17 days with some rainfall in October in Finland (Helsinki)17
21 days with some rainfall in November in Finland (Helsinki)21
22 days with some rainfall in December in Finland (Helsinki)22
Average monthly rainfall (mm)
43 mm monthly rainfall in January in Finland (Helsinki)43
33 mm monthly rainfall in February in Finland (Helsinki)33
35 mm monthly rainfall in March in Finland (Helsinki)35
37 mm monthly rainfall in April in Finland (Helsinki)37
33 mm monthly rainfall in May in Finland (Helsinki)33
42 mm monthly rainfall in June in Finland (Helsinki)42
67 mm monthly rainfall in July in Finland (Helsinki)67
77 mm monthly rainfall in August in Finland (Helsinki)77
73 mm monthly rainfall in September in Finland (Helsinki)73
72 mm monthly rainfall in October in Finland (Helsinki)72
70 mm monthly rainfall in November in Finland (Helsinki)70
58 mm monthly rainfall in December in Finland (Helsinki)58

More climate for Finland

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
No UV (maximum) index in January in Finland (Helsinki)0
No UV (maximum) index in February in Finland (Helsinki)0
UV (maximum) index 1 (Low) in March in Finland (Helsinki)1
UV (maximum) index 3 (Moderate) in April in Finland (Helsinki)3
UV (maximum) index 4 (Moderate) in May in Finland (Helsinki)4
UV (maximum) index 5 (Moderate) in June in Finland (Helsinki)5
UV (maximum) index 5 (Moderate) in July in Finland (Helsinki)5
UV (maximum) index 4 (Moderate) in August in Finland (Helsinki)4
UV (maximum) index 3 (Moderate) in September in Finland (Helsinki)3
UV (maximum) index 1 (Low) in October in Finland (Helsinki)1
No UV (maximum) index in November in Finland (Helsinki)0
No UV (maximum) index in December in Finland (Helsinki)0
Heat & Humidity
No heat & humidity in January in Finland (Helsinki)0
No heat & humidity in February in Finland (Helsinki)0
No heat & humidity in March in Finland (Helsinki)0
No heat & humidity in April in Finland (Helsinki)0
No heat & humidity in May in Finland (Helsinki)0
No heat & humidity in June in Finland (Helsinki)0
No heat & humidity in July in Finland (Helsinki)0
No heat & humidity in August in Finland (Helsinki)0
No heat & humidity in September in Finland (Helsinki)0
No heat & humidity in October in Finland (Helsinki)0
No heat & humidity in November in Finland (Helsinki)0
No heat & humidity in December in Finland (Helsinki)0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

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The climate guide for Finland, represented by Helsinki, shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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