Monthly weather forecast and climate
Espoo, Finland

Weather in January

In Espoo, Finland, in January, the average water temperature is 0.9°C (33.6°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in January »

Weather in February

In Espoo, Finland, in February, the average water temperature is 0.2°C (32.4°F). Note: For swimming, this is considered life-threatening and very dangerous. Weather in February »

Weather in March

With an average sea temperature of 0.1°C (32.2°F), March is the month with the coldest seawater in Espoo, Finland. Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Weather in March »

Weather in April

In Espoo, Finland, in April, the average water temperature is 1.6°C (34.9°F). Note: For swimming, this is considered life-threatening and very dangerous. Weather in April »

Weather in May

In Espoo, Finland, in May, the average water temperature is 6.8°C (44.2°F). Note: Swimming in 6.8°C (44.2°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in May »

Weather in June

In Espoo, Finland, the average seawater temperature in June is 13.2°C (55.8°F). Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in June »

Weather in July

In Espoo, Finland, the average seawater temperature in July is 18.4°C (65.1°F). Note: Swimming in 18.4°C (65.1°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F). Weather in July »

Weather in August

With an average sea temperature of 18.7°C (65.7°F), August is the month with the warmest seawater in Espoo, Finland. Note: For most, swimming in 18.7°C (65.7°F) is not an enjoyable activity. Weather in August »

Weather in September

In September, the average sea temperature in Espoo, Finland, is 15.4°C (59.7°F). Note: For most, swimming in 15.4°C (59.7°F) is not an enjoyable activity. Weather in September »

Weather in October

In Espoo, Finland, in October, the average water temperature is 10.4°C (50.7°F). Note: Swimming in 10.4°C (50.7°F) is considered life-threatening. Weather in October »

Weather in November

In Espoo, Finland, the average seawater temperature in November is 6.8°C (44.2°F). Note: Swimming in 6.8°C (44.2°F) is considered life-threatening. Weather in November »

Weather in December

In December, the average sea temperature in Espoo, Finland, is 4°C (39.2°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in December »
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FAQ

What is the month with the coldest sea water in Espoo?

With an average sea temperature of 0.1°C (32.2°F), March is the month with the coldest seawater.

When are the longest days in Espoo?

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

What month is the sea warmest in Espoo?

The month with the warmest seawater in Espoo is August, with an average sea temperature of 18.7°C (65.7°F).

What is the month with the shortest days in Espoo?

The month with the shortest days in Espoo, Finland, is December, with an average of 6h of daylight.

Average sea temperature
Espoo, Finland

Average sea temperature - Espoo, Finland

The best month for swimming (with the highest average sea temperature) is August (18.7°C).
The coldest month (with the lowest average sea temperature) is March (0.1°C).

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Average daylight
Espoo, Finland

Average daylight - Espoo, Finland

The month with the longest days is June (Average daylight: 18.8h).
The month with the shortest days is December (Average daylight: 6h).

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