April in Haiphong averages a daily high of 27.2°C with nights around 21.8°C. Expect roughly 10.2 wet days totalling 66.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Haiphong is November–January.
Based on PHU LIEN, VM (8.9km), 1995–2024. 21 years of April data.