Mariehamn Airport
Finland
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Mariehamn Airport, Finland

January, the same as December, in Mariehamn Airport, Finland, is a freezing cold winter month, with temperature in the range of an average low of -7°C (19.4°F) and an average high of -1°C (30.2°F). In January, the average high-temperature is almost the same as in December - a subzero cold -1°C (30.2°F). Weather in January »
The last month of the winter, February, is also a subzero cold month in Mariehamn Airport, Finland, with average temperature fluctuating between -8°C (17.6°F) and -2°C (28.4°F). The coldest month is February, with an average high-temperature of -2°C (28.4°F) and an average low-temperature of -8°C (17.6°F). Weather in February »

The first month of the spring, March, is a wintry month in Mariehamn Airport, Finland, with average temperature varying between 1°C (33.8°F) and -5°C (23°F). In Mariehamn Airport, the average high-temperature marginally rises, from a subzero cold -2°C (28.4°F) in February, to a wintry 1°C (33.8°F). Weather in March »

April is a chilly spring month in Mariehamn Airport, Finland, with average temperature fluctuating between 6°C (42.8°F) and -1°C (30.2°F). In Mariehamn Airport, Finland, the average high-temperature in April increases, from a cold 1°C (33.8°F) in March, to a frosty 6°C (42.8°F). Weather in April »

The last month of the spring, May, is a fresh month in Mariehamn Airport, Finland, with average temperature ranging between max 12°C (53.6°F) and min 4°C (39.2°F). In Mariehamn Airport, the average high-temperature increases, from a frosty 6°C (42.8°F) in April, to a cool 12°C (53.6°F). Weather in May »

The first month of the summer, June, is an enjoyable month in Mariehamn Airport, Finland, with average temperature fluctuating between 17°C (62.6°F) and 9°C (48.2°F). In June, the average high-temperature rises, from a cool 12°C (53.6°F) in May, to an enjoyable 17°C (62.6°F). Weather in June »

July, the same as June, is another enjoyable summer month in Mariehamn Airport, Finland, with temperature in the range of an average high of 19°C (66.2°F) and an average low of 12°C (53.6°F). July is the warmest month, with an average high-temperature of 19°C (66.2°F) and an average low-temperature of 12°C (53.6°F). Weather in July »

August, the last month of the summer, in Mariehamn Airport, is also an enjoyable month, with average temperature ranging between max 18°C (64.4°F) and min 11°C (51.8°F). In August, the average high-temperature is practically the same as in July - a still comfortable 18°C (64.4°F). Weather in August »

September, the first month of the autumn, in Mariehamn Airport, is still a mild month, with average temperature ranging between max 14°C (57.2°F) and min 7°C (44.6°F). In Mariehamn Airport, the average high-temperature in September slightly decreases, from an enjoyable 18°C (64.4°F) in August, to a mild 14°C (57.2°F). Weather in September »

October, the same as September, in Mariehamn Airport, Finland, is another chilly autumn month, with average temperature ranging between max 9°C (48.2°F) and min 4°C (39.2°F). In Mariehamn Airport, the average high-temperature drops, from a moderate 14°C (57.2°F) in September, to a chilly 9°C (48.2°F). Weather in October »

November, the last month of the autumn, in Mariehamn Airport, is another cold month, with temperature in the range of an average high of 5°C (41°F) and an average low of 0°C (32°F). In November, the average high-temperature slightly decreases, from a frosty 9°C (48.2°F) in October, to a cold 5°C (41°F). Weather in November »

December, the first month of the winter, in Mariehamn Airport, is also a wintry month, with average temperature varying between 1°C (33.8°F) and -4°C (24.8°F). In December, the average high-temperature marginally drops, from a wintry 5°C (41°F) in November, to a still cold 1°C (33.8°F). Weather in December »

How much does it rain in Mariehamn Airport?

Throughout the year, in Mariehamn Airport, there are 176 rainfall days, and 508mm (20") of precipitation is accumulated.

What is the month with the least sunshine in Mariehamn Airport?

January, February, November and December, with an average of 1h of sunshine, are months with the least sunshine in Mariehamn Airport.

When is the lowest UV index in Mariehamn Airport?

Months with the lowest UV index in Mariehamn Airport, Finland, are January, February, November and December, with an average maximum UV index of 0.

What is the coldest month in Mariehamn Airport?

February is the coldest month in Mariehamn Airport, with an average high-temperature of -2°C (28.4°F) and an average low-temperature of -8°C (17.6°F).

What is the driest month in Mariehamn Airport?

Months with the least rainfall in Mariehamn Airport are February and March Rain falls for 15 days and accumulates 25mm (1") of rain.

What are the months with the coldest sea water in Mariehamn Airport?

Months with the coldest seawater in Mariehamn Airport, Finland, are February and March, with an average sea temperature of 1°C (33.8°F).

When are the longest days in Mariehamn Airport?

With an average of 18.8h of daylight, June has the longest days of the year.

What month has the most sunshine in Mariehamn Airport?

June has the most sunshine of the year in Mariehamn Airport, with an average of 9h of sunshine.

When is the highest UV index in Mariehamn Airport?

Months with the highest UV index are June and July, with an average maximum UV index of 5.

What is the warmest month in Mariehamn Airport?

With an average high-temperature of 19°C (66.2°F) and an average low-temperature of 12°C (53.6°F), July is the warmest month in Mariehamn Airport, Finland.

What is the wettest month in Mariehamn Airport?

The month with the most rainfall in Mariehamn Airport, Finland, is August when the rain falls for 14 days and typically aggregates up to 64mm (2.5") of precipitation.

What month is the sea warmest in Mariehamn Airport?

August is the month with the warmest seawater, with an average sea temperature of 16°C (60.8°F).

What is the month with the shortest days in Mariehamn Airport?

With an average of 6h of daylight, December has the shortest days of the year.
Average rainfall - Mariehamn Airport, Finland
Average rainfall days - Mariehamn Airport, Finland

The month with the highest number of rainy days is January (20 days).
Months with the lowest number of rainy days are May and June (10 days).

Average sea temperature - Mariehamn Airport, Finland
Average daylight / Average sunshine - Mariehamn Airport, Finland
Average UV index - Mariehamn Airport, Finland