September marks the end of summer in Ha Long Bay with an average temperature of 28°C which is the second hottest temperature in the year along with May.
With hot temperatures, you will be able to enjoy days out for many activities in Halong Bay such as kayacking, canoeing or discovering the island, seeing the floating villages. ect..The temperature ranges from 24°C – 31°C.
While the weather is gloriously warm, the average monthly rainfall in September is 1900mm which falls over an average of 14 days. While this may seem high, it is considerably lower than August when it is 2650mm over 16 days. Due to the high rainfall, there are only average 7 hours of sunshine a day. The sunlight is not intense as in June or July.
Because of the cooler weather and reduced rainfall comparing to the previous month, you will feel more pleasant and be able to have some great days out but make sure to check the weather forecast before booking anything.
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Halong Bay Weather By Month
|Halong Bay Weather in January||Halong Bay Weather in July|