Planning for the weather is a good way to make your trip to Huidong relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 27°C, while the coldest months are January and December, with an average of 16°C. The rainiest months in Huidong are June, August, May and July, with each month seeing an average of 302 mm of rainfall.