Weather is probably a major factor when you plan your trip to Sauðárkrókur, but bear 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 temperature of 9°C, while the coldest months are December and January, with an average of -3°C. Average annual precipitation for Sauðárkrókur is 1054 mm.