Monthly weather forecast and climate
Grindavik, Iceland

Weather in January

January, like December, in Grindavik, Iceland, is another cold winter month, with average temperature ranging between max 4.3°C (39.7°F) and min 1.9°C (35.4°F). In Grindavik, Iceland, the average high-temperature is essentially the same as in December - a still wintry 4.3°C (39.7°F). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Grindavik, Iceland, with average temperature fluctuating between 4.2°C (39.6°F) and 1.6°C (34.9°F). February, March and December, with an average high-temperature of 4.2°C (39.6°F), are the coldest months. Weather in February »

Weather in March

March, the first month of the spring, in Grindavik, is still a cold month, with average temperature fluctuating between 1.3°C (34.3°F) and 4.2°C (39.6°F). February, March and December, with an average high-temperature of 4.2°C (39.6°F), are the coldest months. Weather in March »

Weather in April

April, like March, in Grindavik, Iceland, is a wintry spring month, with temperature in the range of an average low of 3°C (37.4°F) and an average high of 5.7°C (42.3°F). In Grindavik, the average high-temperature is relatively the same as in March - a still cold 5.7°C (42.3°F). Weather in April »

Weather in May

The last month of the spring, May, is a chilly month in Grindavik, Iceland, with average temperature fluctuating between 5.1°C (41.2°F) and 7.8°C (46°F). In May, the average high-temperature is practically the same as in April - a frosty 7.8°C (46°F). Weather in May »

Weather in June

June, the first month of the summer, in Grindavik, is a cool month, with temperature in the range of an average high of 10.5°C (50.9°F) and an average low of 8.1°C (46.6°F). In Grindavik, the average high-temperature in June is almost the same as in May - a fresh 10.5°C (50.9°F). Weather in June »

Weather in July

July, like June, in Grindavik, Iceland, is a cool summer month, with average temperature varying between 12.2°C (54°F) and 9.9°C (49.8°F). The warmest months are July and August, with an average high-temperature of 12.2°C (54°F). Weather in July »

Weather in August

The last month of the summer, August, is also a fresh month in Grindavik, Iceland, with average temperature fluctuating between 12.2°C (54°F) and 9.8°C (49.6°F). The warmest months are July and August, with an average high-temperature of 12.2°C (54°F). Weather in August »

Weather in September

The first month of the autumn, September, is still a cool month in Grindavik, Iceland, with average temperature varying between 8.4°C (47.1°F) and 10.3°C (50.5°F). In Grindavik, the average high-temperature in September is essentially the same as in August - a still cool 10.3°C (50.5°F). Weather in September »

Weather in October

October, like September, is a frosty autumn month in Grindavik, Iceland, with average temperature fluctuating between 7.6°C (45.7°F) and 5.4°C (41.7°F). In October, the average high-temperature is essentially the same as in September - a frosty 7.6°C (45.7°F). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Grindavik, Iceland, with average temperature fluctuating between 5.8°C (42.4°F) and 3.3°C (37.9°F). In November, the average high-temperature is practically the same as in October - a wintry 5.8°C (42.4°F). Weather in November »

Weather in December

December, the first month of the winter, in Grindavik, is also a wintry month, with average temperature ranging between max 4.2°C (39.6°F) and min 1.3°C (34.3°F). The coldest months are February, March and December, with an average high-temperature of 4.2°C (39.6°F). Weather in December »
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FAQ

How much does it rain in Grindavik?

Throughout the year, in Grindavik, there are 193.9 rainfall days, and 833mm (32.8") of precipitation is accumulated.

What is the rainiest month in Grindavik?

The month with the most rainfall in Grindavik is January when the rain falls for 16.7 days and typically aggregates up to 99mm (3.9") of precipitation.

When does it snow in Grindavik?

Months with snowfall are January through May, October through December.

How much does it snow in Grindavik?

Throughout the year, there are 33.4 snowfall days, and 297mm (11.69") of snow is accumulated.

What is the month with the least sunshine in Grindavik?

The month with the least sunshine in Grindavik, Iceland, is January, with an average of 2.3h of sunshine.

What is the month with the lowest UV index in Grindavik?

January through May, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the coldest month in Grindavik?

February, March and December, with an average high-temperature of 4.2°C (39.6°F), are the coldest months.

When does it snow the most in Grindavik?

March is the month with the most snowfall in Grindavik, Iceland. Snow falls for 8 days and accumulates 75mm (2.95") of snow.

What month is the sea coldest in Grindavik?

The month with the coldest seawater is March, with an average sea temperature of 5.8°C (42.4°F).

What is the driest month in Grindavik?

June is the month with the least rainfall. Rain falls for 12.5 days and accumulates 35mm (1.38") of precipitation.

When it does not snow in Grindavik?

June through September are months without snowfall.

When are the longest days in Grindavik?

June has the longest days of the year, with an average of 20.7h of daylight.

What is the warmest month in Grindavik?

July and August, with an average high-temperature of 12.2°C (54°F), are warmest months in Grindavik.

What are the most humid months in Grindavik?

Months with the highest humidity are July and August, with an average relative humidity of 81%.

When is the sea warmest in Grindavik?

With an average sea temperature of 11.7°C (53.1°F), July is the month with the warmest seawater in Grindavik.

When is the highest UV index in Grindavik?

July is the month with the highest UV index, with an average maximum UV index of 4.

What month has the most sunshine in Grindavik?

August has the most sunshine of the year, with an average of 7.6h of sunshine.

What is the least humid month in Grindavik?

December is the least humid month in Grindavik, with an average relative humidity of 74%.

What is the month with the shortest days in Grindavik?

December has the shortest days of the year in Grindavik, with an average of 4.5h of daylight.

Average temperature
Grindavik, Iceland

Average temperature - Grindavik, Iceland

The warmest months (with the highest average high temperature) are July and August (12.2°C).
Months with the lowest average high temperature are February, March and December (4.2°C).

The month with the highest average low temperature is July (9.9°C).
The coldest months (with the lowest average low temperature) are March and December (1.3°C).

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Average pressure
Grindavik, Iceland

Average pressure - Grindavik, Iceland

The month with the highest atmospheric pressure is June (1013.7mbar).
The month with the lowest atmospheric pressure is January (996.1mbar).

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Average wind speed
Grindavik, Iceland

Average wind speed - Grindavik, Iceland

The windiest month (with the highest average wind speed) is February (35km/h).
The calmest month (with the lowest average wind speed) is June (20.1km/h).

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Average humidity
Grindavik, Iceland

Average humidity - Grindavik, Iceland

Months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is December (74%).

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Average rainfall
Grindavik, Iceland

Average rainfall - Grindavik, Iceland

The wettest month (with the highest rainfall) is January (99mm).
The driest month (with the least rainfall) is June (35mm).

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Average rainfall days
Grindavik, Iceland

Average rainfall days - Grindavik, Iceland

The month with the highest number of rainy days is September (19.9 days).
The month with the least rainy days is June (12.5 days).

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Average snowfall
Grindavik, Iceland

Average snowfall - Grindavik, Iceland

The month with the highest snowfall is March (75mm).
Months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days
Grindavik, Iceland

Average snowfall days - Grindavik, Iceland

The month with the highest number of snowfall days is March (8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature
Grindavik, Iceland

Average sea temperature - Grindavik, Iceland

The best month for swimming (with the highest average sea temperature) is July (11.7°C).
The coldest month (with the lowest average sea temperature) is March (5.8°C).

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Average daylight / Average sunshine
Grindavik, Iceland

Average daylight / Average sunshine - Grindavik, Iceland

The month with the longest days is June (Average daylight: 20.7h).
The month with the shortest days is December (Average daylight: 4.5h).

The month with the most sunshine is August (Average sunshine: 7.6h).
The month with the least sunshine is January (Average sunshine: 2.3h).

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Average sunshine days
Grindavik, Iceland

Average sunshine days - Grindavik, Iceland

The month with the most sunshine days is June (15 days).
Months with the least sunshine days are March and April (7.1 days).

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Average UV index
Grindavik, Iceland

Average UV index - Grindavik, Iceland

The month with the highest UV index is July (UV index 4).
Months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 2).

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Average visibility
Grindavik, Iceland

Average visibility - Grindavik, Iceland

Months with the highest visibility are June and August (10km).
Months with the lowest visibility are January, February, March, April, May, July, September, October, November and December (9km).

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