The climate in Grindavík during July can be summarized as mild and reasonably dry.
July is in the summer in Grindavík and is typically the 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.
|Daytime temperature||12.9°C 55.2°F|
|Nightly temperature||7.9°C 46.2°F|
|Average temperature||10.4°C 50.7°F|
|Daily sunshine||3 hrs|
|Avg rainfall||67 mm 2.6 ins|
|Rainy days||17 days|
|Sea temperature||11.3°C 52.3°F|
|Windspeed||17.6kph 11 mph|
On average July is the driest month of the year in Grindavík with around 67mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 3 hours of sunshine per day.
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 July 2021.
|Hottest month:||July||12.8°C 55°F|
|Driest month:||July||67mm 2.6ins|
|Coldest month:||January||1.7°C 35.1°F|
|Wettest month:||October||124mm 4.9ins|