Taking into account the local weather in Brew Bay 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 38°F. The rainiest months in Brew Bay are November, January, December, and October, with each month seeing an average of 10 inches of rainfall.