July weather forecast
Grindavik, Iceland

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Weather in July

July holds the title as the warmest month in Grindavik, with maximum temperatures averaging around 12.2°C (54°F). These conditions offer the perfect excuse to explore the city and its surrounding topography more extensively. Popular activities include fishing in the rich Atlantic waters, hunting down hidden gems in local flea markets, and sampling the culinary delights offered by the bustling food stalls. A visit to the picturesque lighthouse at the end of Reykjanes peninsula is often a favorite itinerary item among tourists. While a sunny disposition in Grindavik can be expected in July, don’t forget to carry light rain gear.

Temperature

The temperature hits its peak in July and August, recording an average high-temperature of 12.2°C (54°F).

Humidity

The months with the highest humidity in Grindavik are July and August, with an average relative humidity of 81%.

Rainfall

In Grindavik, during July, the rain falls for 14.8 days and regularly aggregates up to 46mm (1.81") of precipitation. In Grindavik, during the entire year, the rain falls for 193.9 days and collects up to 833mm (32.8") of precipitation.

Snowfall

June through September are months without snowfall.

Sea temperature

With an average sea temperature of 11.7°C (53.1°F), July is the month with the warmest seawater.
Note: In 11.7°C (53.1°F), even brief exposure to 13°C (55.4°F) feels biting, and anything less than 10°C (50°F) risks cold shock and impaired breathing, considering one's health.

Daylight

In Grindavik, the average length of the day in July is 19h and 25min.
On the first day of July, sunrise is at 03:15 and sunset at 23:51. On the last day of the month, sunrise is at 04:38 and sunset at 22:33 GMT.

Sunshine

In Grindavik, the average sunshine in July is 7.5h.

UV index

The month with the highest UV index is July, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In July, the maximum UV index of 4 transforms into these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

What part of the year is the hottest in Grindavik?

Grindavik sees its peak of temperatures during July and August, with an average high-temperature of 12.2°C (54°F).

What are July temperatures in Grindavik?

In July, in Grindavik, the average high-temperature is 12.2°C (54°F), and the average low-temperature is 9.9°C (49.8°F).

What is the most humid month in Grindavik?

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

What is the average humidity in July in Grindavik?

The average relative humidity in July in Grindavik, Iceland, is 81%.

How much does it rain in Grindavik in July?

In Grindavik, in July, during 14.8 rainfall days, 46mm (1.81") of precipitation is typically accumulated.

When it does not snow in Grindavik?

June through September are months without snowfall in Grindavik, Iceland.

What month is the sea warmest in Grindavik?

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

What is the sea water temperature in July in Grindavik?

In Grindavik, Iceland, in July, the average water temperature is 11.7°C (53.1°F). Swimming in 11.7°C (53.1°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Grindavik have in July?

In July, the average day length is 19h and 25min.

When are sunrise and sunset in July in Grindavik?

In July, on the first day of the month, sunrise is at 03:15 and sunset at 23:51. On the last day of the month, sunrise is at 04:38 and sunset at 22:33 GMT.

How long on average sun shines in July in Grindavik?

In July, the average sunshine duration in Grindavik, Iceland, is 7.5h.

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

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

What is the UV index intensity in July in Grindavik?

In Grindavik, the average daily maximum UV index in July is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in July
Grindavik, Iceland

Average temperature in July - Grindavik, Iceland
  • Average high temperature in July: 12.2°C

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

  • Average low temperature in July: 9.9°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).

Average pressure in July
Grindavik, Iceland

Average pressure in July - Grindavik, Iceland
  • Average pressure in July: 1009.4mbar

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

Average wind speed in July
Grindavik, Iceland

Average wind speed in July - Grindavik, Iceland
  • Average wind speed in July: 20.3km/h

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).

Average humidity in July
Grindavik, Iceland

Average humidity in July - Grindavik, Iceland
  • Average humidity in July: 81%

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

Average rainfall in July
Grindavik, Iceland

Average rainfall in July - Grindavik, Iceland
  • Average rainfall in July: 46mm

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

Average rainfall days in July
Grindavik, Iceland

Average rainfall days in July - Grindavik, Iceland
  • Average rainfall days in July: 14.8 days

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).

Average snowfall in July
Grindavik, Iceland

Average snowfall in July - Grindavik, Iceland
  • Average snowfall in July: 0mm

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

Average snowfall days in July
Grindavik, Iceland

Average snowfall days in July - Grindavik, Iceland
  • Average snowfall days in July: 0 days

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

Average sea temperature in July
Grindavik, Iceland

Average sea temperature in July - Grindavik, Iceland
  • Average sea temperature in July: 11.7°C

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).

Average daylight in July /
Average sunshine in July
Grindavik, Iceland

Average daylight in July / Average sunshine in July - Grindavik, Iceland
  • Average daylight in July: 19h and 2min

The month with the longest days is June (Average daylight: 20h and 36min).
The month with the shortest days is December (Average daylight: 4h and 30min).

  • Average sunshine in July: 7h and 3min

The month with the most sunshine is August (Average sunshine: 7h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days in July
Grindavik, Iceland

Average sunshine days in July - Grindavik, Iceland
  • Average sunshine days in July: 14.7 days

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

Average UV index in July
Grindavik, Iceland

Average UV index in July - Grindavik, Iceland
  • Average UV index in July: 4

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

Average cloud cover in July
Grindavik, Iceland

Average cloud cover in July - Grindavik, Iceland
  • Average cloud cover in July: 60

The month with the most cloud cover is March (Cloud cover 69).
The months with the least cloud cover are May, July and August (Cloud cover 60).

Average visibility in July
Grindavik, Iceland

Average visibility in July - Grindavik, Iceland
  • Average visibility in July: 9km

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

Grindavik, Iceland

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