Planning for the weather is an important factor for making your trip to Haitangwan Town a success, especially when you're splurging. The hottest months are usually June and July, with an average temperature of 28°C, while the coldest months are January and December, with an average of 22°C. The rainiest months in Haitangwan Town are July, October, September and August, with each month seeing an average of 263 mm of rainfall.