If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Mbabane: The hottest months are usually December and January with an average temp of 67°F, while the coldest months are July and June with an average of 56°F. The rainiest months in Mbabane are December, January, November, and February, with each month seeing an average of 7 inches of rainfall.