Planning for the weather is an important factor for making your trip to Leirvik a success, especially when you’re splurging. The hottest months are usually August and July, with an average temperature of 14°C, while the coldest months are February and January, with an average of 3°C. The rainiest months in Leirvik are October, December, September and November, with each month seeing an average of 260 mm of rainfall.