Annual mean 6°C · wettest around November · prevailing wind SW
Warmest
21.7 °C
Coldest
-7.0 °C
Wettest
36%
Windiest
5.1 m/s
Prevailing
SW
4.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Hämeenlinna over the whole year is 6°C. July is the hottest month, with highs of about 21°C; January is the coldest, with lows of about -6°C. The rainy (wet) season in Hämeenlinna runs from October to February, peaking in November with a 32% chance of rain on a given day. The dry season is March to September; May is the driest month, at 10%. Winds in Hämeenlinna are highest in January, averaging 3.8 m/s (14 km/h), and lightest in July, at 3.2 m/s (12 km/h). The prevailing wind is from the SW. The clearest skies in Hämeenlinna come in May, when the sky is typically 48% covered; November is the cloudiest month, at 87%.
Month by month Hämeenlinna climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-5°C
-6°C
-10°C
32%
82%
3.8 m/s
0
0
0
February
-3°C
-5°C
-9°C
29%
76%
3.6 m/s
0
0
0
March
1°C
-3°C
-4°C
19%
64%
3.8 m/s
0
0
2
April
7°C
1°C
1°C
18%
60%
3.8 m/s
0
0
20
May
15°C
8°C
10°C
10%
48%
3.5 m/s
25
2
61
June
20°C
13°C
16°C
16%
48%
3.4 m/s
56
10
71
July
21°C
15°C
18°C
16%
54%
3.2 m/s
71
13
71
August
19°C
13°C
17°C
17%
57%
3.4 m/s
66
6
78
September
14°C
9°C
11°C
14%
63%
3.2 m/s
24
1
75
October
8°C
5°C
3°C
25%
75%
3.8 m/s
0
0
27
November
2°C
1°C
-3°C
32%
87%
3.8 m/s
0
0
4
December
-2°C
-3°C
-7°C
28%
84%
3.7 m/s
0
0
0
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Hämeenlinna weather by season
Year round, Hämeenlinna has days of about -5°C at their warmest in January, its coolest month, and 21°C in July, its warmest; the coolest hours of the day run from -6°C to 15°C through the year, and the average temperature over the year is 6°C around the clock. Rain is most likely around November and least likely around May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Hämeenlinna weather in winterDecember to February
High -3°CLow -5°CRain 30%
Winter in Hämeenlinna has typical daily highs of about -3°C and lows of about -5°C, with a 30% chance of rain on a given day.
Hämeenlinna weather in springMarch to May
High 8°CLow 2°CRain 16%
Spring in Hämeenlinna has typical daily highs of about 8°C and lows of about 2°C, with a 16% chance of rain on a given day.
Hämeenlinna weather in summerJune to August
High 20°CLow 14°CRain 16%
Summer in Hämeenlinna has typical daily highs of about 20°C and lows of about 14°C, with a 16% chance of rain on a given day.
Hämeenlinna weather in autumnSeptember to November
High 8°CLow 5°CRain 24%
Autumn in Hämeenlinna has typical daily highs of about 8°C and lows of about 5°C, with a 24% chance of rain on a given day.
When is the rainy season in Hämeenlinna?
The rainy (wet) season in Hämeenlinna runs from October to February, peaking in November with a 32% chance of rain on a given day. The dry season is March to September; May is the driest month, at 10%.
What time of year is Hämeenlinna windiest?
Winds in Hämeenlinna are highest in January, averaging 3.8 m/s (14 km/h), and lightest in July, at 3.2 m/s (12 km/h). The prevailing wind is from the SW.
What is the average temperature in Hämeenlinna year round?
The average temperature in Hämeenlinna over the whole year is 6°C. July is the hottest month, with highs of about 21°C; January is the coldest, with lows of about -6°C.