Taking into account the local weather in Bamfield 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 58°F, while the coldest months are February and December with an average of 42°F. The rainiest months in Bamfield are November, January, December, and October, with each month seeing an average of 20 inches of rainfall.