Ha Giang Weather September. Ha Giang is the beautiful place and September means that it is edging towards the end of the summer. Though, in this month you can still expect to receive plenty of heat due to the sun and simultaneously you will be able to enjoy rainfall. The average temperature in the September is found to be around 28°C. The wet weather is found to be increasing and showing its significance in the central region towards the end of September.
During this month, the people generally experience the drop in the temperature. As this is the end of the summer season, the temperature starts to fall and the rainfall also becomes less frequent. As we head towards the month of October, the rainfall also reduces while the temperature becoming more soothing. The weather condition in Sapa will also start to improve in this month and so you can also plan for the trekking tour.