Weather is probably a major factor when you plan your trip to Egersund, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August with an average temp of 57°F, while the coldest months are February and January with an average of 36°F. The rainiest months in Egersund are October, December, November, and September, with each month seeing an average of 9 inches of rainfall.