This season might be called summer but it isn’t very warm. There can be a few warmer days but most of them are usually chilly, windy and rainy. Even though summer is the least rainy season in Iceland, the sky often remains cloudy and the air doesn’t really heat up. The days of summer are the longest up to the summer solstice on the 21st of June. Also for two weeks in the summer there’s constant daylight.
Summer is the season of the midnight sun, a phenomenon that happens in certain parts of Iceland because of its closeness to the polar circle. During the summer season, you might need warm clothes. A windbreaker, a sweater and a pair of water-resistant shoes will be useful. Summer is also the high tourist season in Iceland and the time for camping (don’t forget warm underwear and sleeping bag) and touring the Jökulsárlón Glacier.