Planning for the weather is a good way to make your trip to Ban Ko Kwang relaxing and enjoyable, especially when you're splurging. The hottest months are usually March and February, with an average temperature of 28°C, while the coldest months are January and February, with an average of 27°C. The rainiest months in Ban Ko Kwang are October, September, November and July, with each month seeing an average of 357 mm of rainfall.