If you're hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Guanzhouzhen: The hottest months are usually August and July, with an average temperature of 23°C, while the coldest months are January and December, with an average of 7°C. The rainiest months in Guanzhouzhen are June, July, May and April, with each month seeing an average of 269 mm of rainfall.