If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Da Lat: The hottest months are usually March and April, with an average temperature of 20°C, while the coldest months are January and February, with an average of 18°C. The rainiest months in Da Lat are May, September, October and July, with each month seeing an average of 442 mm of rainfall.