May is the season change of spring to summer, so rainfall and temperature increase significantly.
At this time, Hanoi weather is not stable, the tropical depression can still pass through, making Hanoi colder in the beginning of the month. On the contrary, there are some days hot as in summer with the average temperature varies from 25 to 31 degrees Celsius. This time also marks the beginning of rainy season in Northern Vietnam with the precipitation of 183mm and there are about 14 rainy days in a month. Sudden showers can occur at anytime of the days. This kind of rain doesn’t last long, but can be a little annoying, so you’d better bring a umbrellas or lightweight raincoat if you visit Hanoi at this time.
There are some events and celebrations in Hanoi:
- International Labor Day: 1st of May
- Ho Chi Minh’s birth day: 19th of May
You may also like: Best places to visit Vietnam in May
Hanoi Weather by Month
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