Planning for the weather is a good way to make your trip to Khlong Yai relaxing and enjoyable, especially when you’re splurging. The hottest months are usually April and March, with an average temperature of 27°C, while the coldest months are January and February, with an average of 26°C. The rainiest months in Khlong Yai are September, July, August and June, with each month seeing an average of 500 mm of rainfall.