Grindavík Weather in August

What's the weather like in Grindavík (Southern Peninsula) in August 2021?

The climate in Grindavík during August can be summarized as mild and a little damp.

August is in the summer in Grindavík and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 13°C (55°F), whilst at night 8°C (46°F) is normal.

Grindavík weather averages (imperial / metric)
Daytime temperature 12.7°C 54.9°F
Nightly temperature 7.7°C 45.9°F
Average temperature 10.2°C 50.4°F
Daily sunshine 5.4 hrs
Avg rainfall 92 mm 3.6 ins
Rainy days 18 days
Sea temperature 11.9°C 53.4°F
Humidity 82%
Windspeed 18.7kph 12 mph

On average August is the 5th driest month of the year in Grindavík with around 92mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.4 hours of sunshine per day.

August temperatures in Grindavík

Grindavík average temperature in August

August rainfall

Grindavík average rain in August

August hourly sunshine

Grindavík average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Grindavík in August 2021.

Other monthly averages

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Grindavík weather stats

Grindavík weather statistics
Hottest month: July 12.8°C 55°F
Driest month: July 67mm 2.6ins
Sunniest month: May 3hrs
Coldest month: January 1.7°C 35.1°F
Wettest month: October 124mm 4.9ins
Map showing location of Grindavík (63.8424, -22.43375)

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