If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Phla: The hottest months are usually April and May, with an average temperature of 29°C, while the coldest months are January and December, with an average of 27°C. The rainiest months in Phla are October, September, July and June, with each month seeing an average of 230 mm of rainfall.