Climate and monthly weather forecastÅrstein, Norway

Climate and monthly weather forecast

Weather in January

In Årstein, Norway, the average seawater temperature in January is 4.6°C (40.3°F). Note: In swimming engagements, this poses immediate life-threatening risks. Weather in January »

Weather in February

In February, the average sea temperature in Årstein, Norway, is 4°C (39.2°F). Note: In swimming scenarios, this is an immediate danger to life. Breathing becomes uncontrollable instantly, obstructing any form of clear thinking. Weather in February »

Weather in March

The month with the coldest seawater in Årstein, Norway, is March, with an average sea temperature of 3.7°C (38.7°F). Note: In swimming, this condition is considered life-threatening and perilous. Weather in March »

Weather in April

In April, the average sea temperature in Årstein, Norway, is 4.3°C (39.7°F). Note: In the event of swimming, this state is extremely frigid, dangerous, and poses a significant risk to life. Weather in April »

Weather in May

In Årstein, Norway, the average seawater temperature in May is 6.3°C (43.3°F). Note: Swimming in 6.3°C (43.3°F) can be lethal. Merely spending a few minutes in 13°C (55.4°F) waters feels harsh, and venturing below 10°C (50°F) might disrupt breathing control and bring about cold shock, contingent on individual resilience. Weather in May »

Weather in June

In Årstein, Norway, in June, the average water temperature is 9.7°C (49.5°F). Note: Swimming in 9.7°C (49.5°F) feels unbearing at 13°C (55.4°F) and can be life-risking below 10°C (50°F), causing breathing issues and cold shock, depending on a person's capacity. Weather in June »

Weather in July

In July, the average sea temperature in Årstein, Norway, is 12.1°C (53.8°F). Note: Without suitable protection, venturing into 12.1°C (53.8°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths. Weather in July »

Weather in August

With an average sea temperature of 12.3°C (54.1°F), August is the month with the warmest seawater in Årstein, Norway. Note: Being in 12.3°C (54.1°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 August »

Weather in September

In Årstein, Norway, in September, the average water temperature is 10.8°C (51.4°F). Note: It is life-risking to swim in 10.8°C (51.4°F). Briefly staying in 13°C (55.4°F) waters feels unsettling, and temperatures below 10°C (50°F) might result in cold shock and loss of breath control, hinging on personal endurance. Weather in September »

Weather in October

In Årstein, Norway, in October, the average water temperature is 8.6°C (47.5°F). Note: Swimming in 8.6°C (47.5°F) is deemed hazardous. Exposure to temperatures below 10°C (50°F) leads to immediate severe cold shock and hyperventilation. Weather in October »

Weather in November

In Årstein, Norway, in November, the average water temperature is 7.4°C (45.3°F). Note: Dipping into 7.4°C (45.3°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Weather in November »

Weather in December

In Årstein, Norway, the average seawater temperature in December is 6.2°C (43.2°F). Note: Swimming in 6.2°C (43.2°F) is considered life-threatening. Weather in December »

Frequently asked questions

March is the month with the coldest seawater, with an average sea temperature of 3.7°C (38.7°F).

June has the shortest days of the year, with an average of 0h and 0min of daylight.

With an average sea temperature of 12.3°C (54.1°F), August is the month with the warmest seawater.

The month with the longest days is August, with an average of 17h and 36min of daylight.

On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Årstein, 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.

Average sea temperature
Årstein, Norway

The best month for swimming (with the highest average sea temperature) is August (12.3°C).
The coldest month (with the lowest average sea temperature) is March (3.7°C).

Average daylight
Årstein, Norway

The month with the longest days is August (Average daylight: 17h and 36min).
The month with the shortest days is June (Average daylight: 0h and 0min).