If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Bengkulu: The hottest months are usually May and April with an average temp of 79°F, while the coldest months are October and November with an average of 77°F. The rainiest months in Bengkulu are November, February, October, and December, with each month seeing an average of 12 inches of rainfall.