If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Phường 10: The hottest months are usually March and April with an average temp of 69°F, while the coldest months are January and February with an average of 65°F. The rainiest months in Phường 10 are May, September, October, and July, with each month seeing an average of 17 inches of rainfall.