If you're looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Koidu Town: The hottest months are usually February and March, with an average temperature of 27°C, while the coldest months are December and January, with an average of 24°C. The rainiest months in Koidu Town are September, August, July and October, with each month seeing an average of 505 mm of rainfall.