Weather in Hanoi in May 2025
Average weather
Average temperature in Hanoi in May
Going from a maximum of +39°C during the day to a minimum of +21°C during the night, the temperature in May averages around +33°C.
The average maximum temperature goes up 33% by the end of the month, compared with the beginning of the month, from +30°C to +36°C.
Is Hanoi warm or cold in May?
Hanoi is typically hot in May.
Maximum temperatures go up compared to the previous month from +28°C to +32°C. The minimum temperature also goes up from +22°C to +25°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how May is compared to other months in Hanoi:
Climate in Hanoi in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +28°C | +32°C | +33°C | ||||
| Min. temperature | ||||||
| +13°C | +17°C | +21°C | ||||
| Max. temperature | ||||||
| +39°C | +40°C | +42°C | ||||
| Rainfall | ||||||
| 103 mm | 232 mm | 243 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 82% | 81% | 80% | ||||
| Air pressure | ||||||
| 1009 HPa | 1005 HPa | 1002 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 1 | ||||
| Cloudy days | ||||||
| 10 | 7 | 6 | ||||
| Rainy days | ||||||
| 17 | 21 | 22 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +28°C to +32°C during the day. Prepare for more rain. Average rainfall goes from 103 mm to 232 mm. It feels drier, as humidity decreases from 82% to 81%. The average wind speed doesn’t change much during May, staying around 1 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
Next month (June) brings a further decline in the weather.
Wind
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Hanoi is gradually increasing during May, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last May in Hanoi?
Climate Change over Years
The climate in Hanoi in May has not changed much over the last 43 years.
The average temperature was the lowest in 2011 (+26°C) and the highest in 2019 (+29°C). The driest year was 2004 with only 1210 mm of rainfall, and the wettest year was 1981 with 2188 mm.
FAQ
Is May a good time to visit Hanoi?
Can you sunbathe in Hanoi in May?
Is Hanoi rainy in May?
Is it sunny in Hanoi in May?
Other cities in Vietnam
Monthly weather in Hanoi
Source of the data
For this page, we’ve looked at the typical weather in Hanoi, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.