If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Pemba Island: The hottest months are usually March and February with an average temp of 82°F, while the coldest months are August and July with an average of 78°F. The rainiest months in Pemba Island are April, May, November, and March, with each month seeing an average of 11 inches of rainfall.