Jokulsarlon Glacial Lagoon Weather & Climate: Best Time to Visit

The weather in Jokulsarlon Glacial Lagoon changes moderately throughout the year, offering enough variation to appreciate each season. Average maximum daytime temperatures range from a chilly 10°C (50°F) in July, the warmest time of the year, to a chilly 2°C (36°F) during cooler months like February.

At night, you can expect temperatures ranging from 6°C (43°F) in July to around -3°C (27°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Jokulsarlon Glacial Lagoon has a relatively rain/snowy climate with high precipitation levels, averaging 2848 mm (112 in) of rain/snowfall annually. While rainfall varies throughout the year, each season offers its own charm. September brings wetter days averaging 304 mm (12 in) of precipitation, spread over 17 rainy days.

In contrast, the driest month May experiences a drier climate, with about 144 mm (5.7 in) of rainfall spread across 16 rainy days. For more details, please visit our Jokulsarlon Glacial Lagoon Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Jokulsarlon Glacial Lagoon. While May receives considerable daily sunshine with up to 5.7 hours, December marks the darkest time of the year, where sunshine is scarce with only 0.6 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine