Climate and monthly weather forecastÖstermalm, Sweden

Climate and monthly weather forecast

Weather in January

In January, the average sea temperature in Östermalm, Sweden, is 1.9°C (35.4°F). Note: In relation to swimming, the extreme cold, danger, and potential fatality of this situation are apparent. Weather in January »

Weather in February

With an average sea temperature of 1°C (33.8°F), February is the month with the coldest seawater in Östermalm, Sweden. Note: Within the context of swimming, this state is extremely cold, dangerous, and can result in death. Weather in February »

Weather in March

In Östermalm, Sweden, in March, the average water temperature is 1.2°C (34.2°F). Note: During swimming activities, this situation is lethal and fraught with danger. Weather in March »

Weather in April

In Östermalm, Sweden, the average seawater temperature in April is 2.9°C (37.2°F). Note: When swimming, this condition is immediately life-threatening. Weather in April »

Weather in May

In Östermalm, Sweden, the average seawater temperature in May is 7.5°C (45.5°F). Note: Being in 7.5°C (45.5°F) waters at 13°C (55.4°F) is discomforting, but anything below 10°C (50°F) can jeopardize breathing and induce cold shock, factoring in physical endurance. Weather in May »

Weather in June

In June, the average sea temperature in Östermalm, Sweden, is 13.8°C (56.8°F). Note: Dipping into 13.8°C (56.8°F) below 10°C (50°F) needs protective wear, or you'd face cold shock and breathing issues swiftly. Weather in June »

Weather in July

In July, the average sea temperature in Östermalm, Sweden, is 17.9°C (64.2°F). Note: For most individuals, swimming in 17.9°C (64.2°F) is not a pleasant experience. Weather in July »

Weather in August

With an average sea temperature of 18.8°C (65.8°F), August is the month with the warmest seawater in Östermalm, Sweden. Note: For the majority, swimming in 18.8°C (65.8°F) does not offer a pleasant experience. Weather in August »

Weather in September

In Östermalm, Sweden, the average seawater temperature in September is 14.9°C (58.8°F). Note: With the appropriate swimsuit, one can swim in 14.9°C (58.8°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. Weather in September »

Weather in October

In Östermalm, Sweden, the average seawater temperature in October is 10.2°C (50.4°F). Note: Swimming in 10.2°C (50.4°F) is considered life-threatening. Weather in October »

Weather in November

In Östermalm, Sweden, in November, the average water temperature is 7.3°C (45.1°F). Note: Swimming at temperatures less than 10°C (50°F) in 7.3°C (45.1°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. Weather in November »

Weather in December

In Östermalm, Sweden, the average seawater temperature in December is 4.8°C (40.6°F). Note: In the sphere of swimming, this is extremely cold and poses life-endangering hazards. Weather in December »

Frequently asked questions

With an average sea temperature of 1°C (33.8°F), February is the month with the coldest seawater in Östermalm, Sweden.

With an average of 18h and 30min of daylight, June has the longest days of the year in Östermalm, Sweden.

With an average sea temperature of 18.8°C (65.8°F), August is the month with the warmest seawater in Östermalm.

On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.

December has the shortest days of the year in Östermalm, Sweden, with an average of 6h and 12min of daylight.

Average sea temperature
Östermalm, Sweden

The best month for swimming (with the highest average sea temperature) is August (18.8°C).
The coldest month (with the lowest average sea temperature) is February (1°C).

Average daylight
Östermalm, Sweden

The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).