If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Kvinesdal: The hottest months are usually July and August with an average temp of 56°F, while the coldest months are February and January with an average of 33°F. The rainiest months in Kvinesdal are December, October, November, and August, with each month seeing an average of 8 inches of rainfall.