Danang has a long wet season from May to January and a dry season from February to April. With annual rainfall levels of 2,500 millimetres, there is likely to be some rain during your visit but for most of the year the rain comes in short bursts so it is not likely to affect your travels.
Da Nang, just north of the equator on Vietnam's south central coast, has temperatures averaging 26°C year round, with its hottest months in June to August. December to February is the coolest period, with average temperatures of 18-23°C.