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 Beiliu: 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 Beiliu are May, June, August and July, with each month seeing an average of 292 mm of rainfall.