Although May is the last month of spring, it is like a summer month due to the significant increase in temperature and precipitation. Weather is sometimes unpredictable this month, tropical depression can still pass through and cause some cold days. The temperature of this month fluctuates between 25 – 31oC, humidity increases by 75-80%, rainfall also increases and there are more rains this month. There are about 14 rainy days in the month but they are just cool short showers. However, you should bring a small umbrella along. May is ideal time to cruise Halong Bay, kayack, swim or visit caves like Sung Sot Cave, Thien Cung Cave ect.
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Halong Bay Weather By Month
|Halong Bay Weather in January||Halong Bay Weather in July|