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Hameenlinna weather in December

Weather in Hameenlinna: December

Average day temperature: 29.1°F
Average night temperature: 27.1°F
Number of sunny days: 2 days
Day length: 5.5 - 6.2 hours
Number of days with precipitation: 3 days
Precipitation totals: 1.6 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 41°F. At the same time the lowest night temperature was 21°F. Daily and nightly averages during December were 34.7°F and 34.8°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Hameenlinna in December is 1.6 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 7.2 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 1.2.

Best time for vacation in Hameenlinna

Sunniest months:
June 11 days
May 11 days
July 10 days
Warmest months:
July 71.4 °F
August 68.2 °F
June 66.9 °F
Coldest months:
January 23.8 °F
February 26.3 °F
December 29.1 °F
Rainiest months:
July 4 days
August 4 days
September 4 days
Windiest months:
December 7.7 mph
March 7.6 mph
January 7.5 mph

Hameenlinna on a weather map

Hameenlinna
+34°F
SE 9 mph
Feels like: +27°F
Precip.: 72%
Places in Finland:
Name
°F
+34°F
+32°F
+21°F
+32°F
+23°F
+30°F
+25°F
+32°F
+37°F
+5°F
+21°F
+37°F
+34°F
+32°F
+32°F
24 Hours Forecast
Hameenlinna
Local time: 00:46
December 29, monday
0300
30°F
SE
9 mph
0600
28°F
SE
9 mph
0900
28°F
SE
13 mph
1200
25°F
SE
13 mph
1500
23°F
SE
11 mph
1800
23°F
SE
12 mph
2100
23°F
S
11 mph
December 30, tuesday
0000
23°F
SE
11 mph
Units of measurement: °C / °F