If you're looking forward to lots of outings with your partner, check out these details about year-round temperatures in Kerr Serign: The hottest months are usually November and October with an average temp of 80°F, while the coldest months are February and March with an average of 76°F. The rainiest months in Kerr Serign are August, September, July, and October, with each month seeing an average of 8 inches of rainfall.