Annual average weather for Iceland

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Annual Average Weather for Iceland

The annual average maximum daily temperature is 3.6°C (38.5°F) which is too cold for sunbathing. The annual average water temperature is typically 8.2°C (46.7°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit. Annually there are on average 13.4 days of rain per month and 5.0 hours of sun per day.

When is the best time to visit Iceland?

The best months to visit Iceland are May, June, July, August, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The sea is best for swimming between June and October when the sea temperature is above the average 8°C (47°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Can you sunbathe in Iceland year round?

No, you can't sunbathe in Iceland all year round. Some months are too cold for sunbathing, however you might enjoy other beach activities such as taking a walk, going hiking along trails or just enjoying the scenery.

Even during the warmest month, sunbathing may not be ideal as temperatures don't reach 20°C (72°F). The warmest month in Iceland is July when the average maximum temperature is 6°C (43°F), average temperature is 6°C (42°F) and average minimum temperature is 5°C (41°F).

More info about the annual temperatures and sunshine.

Can you swim in Iceland year round?

No, you can't swim in Iceland all year round.

The warmest sea water temperatures in Iceland are found in August when they peak at 11°C (52°F) and lowest in March when they dip to 6°C (43°F).

The sea temperature is above average for swimming between June and October when the sea temperature is above 8°C (47°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

More info about the annual sea temperatures

When is the hottest month in Iceland?

The hottest month in Iceland is July when the average maximum temperature is too cold for sunbathing 6°C (43°F), average temperature is 6°C (42°F) and average minimum temperature is 5°C (41°F).

More info about the annual temperatures and sunshine.

When is the coldest month in Iceland?

The coolest month in Iceland is December when the average maximum temperature is 2°C (35°F), average temperature is 1°C (34°F) and average minimum temperature is 1°C (33°F).

More info about the annual temperatures and sunshine

When is the sunniest month in Iceland?

The sunniest days in Iceland are in June which has the most hours of sunshine per day. In June the sunshine percentage is 46% making it quite sunny but with regular periods of cloudy and overcast skies. There are 9.3 hours of sunshine per day.

More info about the annual sunshine.

When is the least sunny month in Iceland?

December has the least sunshine. In December the sunshine percentage is 22.5% making it extremely gloomy and overcast with little sunshine. There are 0.9 hours of sunshine per day.

More info about the annual sunshine.

When is the driest month in Iceland?

The driest month in Iceland is May with 0.5cm (0.2inches) of rain and June has the fewest days of rain with 10.8 days with some rain, a pretty wet time to visit the beach.

More info about the annual rainfall

When is the wettest month in Iceland?

The wettest month in Iceland is January with 3cm (1.2inches) of rain and September has the most days of rain with 19.9 days with some rain, a wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in Iceland?

The coldest sea water temperatures in Iceland are found in March when they dip to 6°C (43°F) which is extremely cold and not suitable for swimming. Taking a dip at this temperature would risk hypothermia.

More info about the annual sea temperatures.

When is the sea the warmest in Iceland?

The warmest sea water temperatures in Iceland are found in August when they peak at 11°C (52°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

More info about the annual sea temperatures.

When is the most humid month in Iceland?

The most humid month in Iceland is July with a dew point (an indicator of humidity) of 5°C (41°F) which is a bit dry for some.

More info about the annual humidity.

When is the least humid month in Iceland?

The least humid month in Iceland is December with a dew point of 0°C (33°F) which is a bit dry for some.

More info about the annual humidity.

When is the windiest month in Iceland?

The most windy month in Iceland is February when the average maximum windspeed is 46KM/H (29MPH) and the average wind speed is 33KM/H (21MPH).

More info about the annual wind conditions.

Annual Temperature for Iceland

The hottest month in Iceland is July when the average maximum temperature is 6°C (43°F), average temperature is 6°C (42°F) and average minimum temperature is 5°C (41°F).

The coolest month in Iceland is December when the average maximum temperature is 2°C (2°F), average temperature is 1°C (34°F) and average minimum temperature is 1°C (33°F).

Annual Sunshine for Iceland

The longest days in Iceland are in June, with an average of 21.6 hours of daylight per day. December has the shortest days with an average of 3.9 hours of daylight per day.

The sunniest days in Iceland are in June which has the most hours of sunshine per day. The sunshine percentage is 46% making it quite sunny but with regular periods of cloudy and overcast skies. There are 9.3 hours of sunshine per day.

December has the least sunshine. The sunshine percentage is 22.5% making it extremely gloomy and overcast with little sunshine. There are 0.9 hours of sunshine per day.

The ultraviolet index is the highest in June when it reaches 5 and lowest in January when it reaches 0.2.

An ultraviolet index reading of 3 to 5 indicates there is a moderate risk of harm from unprotected sun exposure. Keep out of the sun during the strongest hours around midday when unprotected skin risks burning in less than 30 minutes. For the sensitive wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Tanning for hours is possible with the right application of sun cream. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for Iceland

The warmest sea water temperatures in Iceland are found in August when they peak at 11°C (52°F) and lowest in March when they dip to 6°C (43°F).

The sea is best for swimming between June and October when the temperature is above 8°C (47°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Annual Rainfall for Iceland

The wettest month in Iceland is January with 3cm (1.2inches) of rain and September has the most days of rain with 19.9 days with some rain, a wet time to visit the beach.

The driest month in Iceland is May with 0.5cm (0.2inches) of rain and June has the fewest days of rain with 10.8 days with some rain, a pretty wet time to visit the beach.

Annual Humidity for Iceland

The most humid month in Iceland is July with a dew point (an indicator of humidity) of 5°C (41°F) which is a bit dry for some.

The least humid month in Iceland is December with a dew point of 0°C (33°F) which is a bit dry for some.

Annual Wind Speed for Iceland

The most windy month in Iceland is February when the average maximum windspeed is 46KM/H (29MPH) and the average wind speed is 33KM/H (21MPH).

The least windy month in Iceland is July when the average maximum windspeed is 27KM/H (17MPH) and the average wind speed is 18KM/H (11MPH).

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