Taking into account the local weather in Mansons Landing is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually August and July with an average temp of 60°F, while the coldest months are February and December with an average of 36°F. The rainiest months in Mansons Landing are November, January, December, and October, with each month seeing an average of 12 inches of rainfall.