Planning for the weather is an important factor for making your trip to Yannan Subdistrict a success, especially when you're splurging. The hottest months are usually July and August, with an average temperature of 26°C, while the coldest months are January and December, with an average of 12°C. The rainiest months in Yannan Subdistrict are June, May, August and March, with each month seeing an average of 250 mm of rainfall.