If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Lusaka: The hottest months are usually October and November, with an average temperature of 24°C, while the coldest months are July and June, with an average of 18°C. The rainiest months in Lusaka are January, December, February and March, with each month seeing an average of 215 mm of rainfall.