Weather can make or break a road trip, so here's some data about year-round temperatures in Nyaungdon to help you plan yours: The hottest months are usually April and March, with an average temperature of 29°C, while the coldest months are January and February, with an average of 27°C. The rainiest months in Nyaungdon are July, August, June and September, with each month seeing an average of 520 mm of rainfall.