Weather can make or break a road trip, so we've gathered some data about year-round temperatures in Monywa to help you plan yours. The hottest months are usually April and May, with an average temperature of 32°C, while the coldest months are January and December, with an average of 23°C. The rainiest months in Monywa are September, August, October and July, with each month seeing an average of 212 mm of rainfall.