Currently: 37 °F. Light rain. Low clouds. (Weather station: Mariehamn / Aland Island, Åland Islands). See more current weatherAnnual Weather Averages in Mariehamn
Based on weather reports collected during 1985–2015.
All Year Climate & Weather Averages in Mariehamn
High Temp: 68 °F
Low Temp: 23 °F
Mean Temp: 43 °F
Precipitation: 0.57"
Humidity: 83%
Dew Point: 38 °F
Wind: 9 mph
Pressure: 29.88 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Mariehamn
High Temp: 34 °F
Low Temp: 25 °F
Mean Temp: 29 °F
Precipitation: 0.74"
Humidity: 89%
Dew Point: 27 °F
Wind: 10 mph
Pressure: 29.83 "Hg
Visibility: 7 mi
February Climate & Weather Averages in Mariehamn
High Temp: 33 °F
Low Temp: 23 °F
Mean Temp: 28 °F
Precipitation: 0.51"
Humidity: 88%
Dew Point: 25 °F
Wind: 9 mph
Pressure: 29.85 "Hg
Visibility: 7 mi
March Climate & Weather Averages in Mariehamn
High Temp: 37 °F
Low Temp: 26 °F
Mean Temp: 31 °F
Precipitation: 0.37"
Humidity: 84%
Dew Point: 27 °F
Wind: 9 mph
Pressure: 29.88 "Hg
Visibility: 7 mi
April Climate & Weather Averages in Mariehamn
High Temp: 45 °F
Low Temp: 32 °F
Mean Temp: 38 °F
Precipitation: 0.34"
Humidity: 79%
Dew Point: 32 °F
Wind: 8 mph
Pressure: 29.93 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Mariehamn
High Temp: 55 °F
Low Temp: 40 °F
Mean Temp: 47 °F
Precipitation: 0.24"
Humidity: 74%
Dew Point: 39 °F
Wind: 8 mph
Pressure: 29.96 "Hg
Visibility: 11 mi
June Climate & Weather Averages in Mariehamn
High Temp: 62 °F
Low Temp: 48 °F
Mean Temp: 55 °F
Precipitation: 0.45"
Humidity: 77%
Dew Point: 48 °F
Wind: 8 mph
Pressure: 29.88 "Hg
Visibility: 11 mi
July Climate & Weather Averages in Mariehamn
High Temp: 68 °F
Low Temp: 55 °F
Mean Temp: 62 °F
Precipitation: 0.45"
Humidity: 79%
Dew Point: 55 °F
Wind: 8 mph
Pressure: 29.87 "Hg
Visibility: 11 mi
August Climate & Weather Averages in Mariehamn
High Temp: 67 °F
Low Temp: 53 °F
Mean Temp: 60 °F
Precipitation: 0.60"
Humidity: 82%
Dew Point: 55 °F
Wind: 8 mph
Pressure: 29.88 "Hg
Visibility: 10 mi
September Climate & Weather Averages in Mariehamn
High Temp: 59 °F
Low Temp: 46 °F
Mean Temp: 52 °F
Precipitation: 0.58"
Humidity: 84%
Dew Point: 48 °F
Wind: 8 mph
Pressure: 29.91 "Hg
Visibility: 10 mi
October Climate & Weather Averages in Mariehamn
High Temp: 49 °F
Low Temp: 39 °F
Mean Temp: 44 °F
Precipitation: 0.77"
Humidity: 86%
Dew Point: 41 °F
Wind: 9 mph
Pressure: 29.90 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Mariehamn
High Temp: 41 °F
Low Temp: 33 °F
Mean Temp: 37 °F
Precipitation: 0.93"
Humidity: 89%
Dew Point: 35 °F
Wind: 9 mph
Pressure: 29.85 "Hg
Visibility: 8 mi
December Climate & Weather Averages in Mariehamn
High Temp: 36 °F
Low Temp: 28 °F
Mean Temp: 32 °F
Precipitation: 0.87"
Humidity: 89%
Dew Point: 29 °F
Wind: 10 mph
Pressure: 29.80 "Hg
Visibility: 8 mi