You might spend a lot of your holiday inside, but if you want to see more of the area, taking a look at local weather data can help you. The hottest months are usually March and April, with an average temperature of 28°C, while the coldest months are January and December, with an average of 26°C. The rainiest months in Kep are September, July, October and June, with each month seeing an average of 285 mm of rainfall.