Planning for the weather is a good way to make your trip to Battambang relaxing and enjoyable, especially when you’re splurging. The hottest months are usually March and April, with an average temperature of 30°C, while the coldest months are December and January, with an average of 27°C. The rainiest months in Battambang are October, September, August and July, with each month seeing an average of 205 mm of rainfall.