Taking the local weather in Hà Bàn into account can help you maximise your time at the pool during your trip. The hottest months are usually June and July, with an average temperature of 28°C, while the coldest months are January and February, with an average of 22°C. The rainiest months in Hà Bàn are November, October, September and December, with each month seeing an average of 475 mm of rainfall.