Hanoi in May: Weather & climate information
- This month marks the end of spring and brings a considerable increase in temperature and precipitation as well.
- Hanoi is still mild in the early morning but it is sometimes unpredictable with heavy showers.
- As the atmospheric moisture falls, visitors are able to meander around the streets in dry and bright sunshine.
Although May is the last month of spring in Hanoi, it’s more like a summer month due to significant increase in its temperature and precipitation. The weather is sometimes unpredictable in May that several tropical depressions may still pass by in the month causing cold days.
May Averages
| Min Temperature | 24.9°C | Precipitation | 133.0mm |
| Max Temperature | 34.5°C | Rainy Days | 7.0 days |
| Humidity | 73.1% | Sunshine Hours | 12.0 hours |
Historical weather
May weather averages for Hanoi in the last 10 years ( 2010 to 2020).
- 2010
- 2011
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- 2020
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
1 23.0°33.0° | ||||||
2 22.0°39.0° | 3 23.0°29.0° | 4 21.0°26.0° | 5 21.0°28.0° | 6 22.0°34.0° | 7 22.0°39.0° | 8 23.0°37.0° |
9 24.0°38.0° | 10 25.0°38.0° | 11 25.0°35.0° | 12 25.0°32.0° | 13 22.0°27.0° | 14 21.0°27.0° | 15 23.0°30.0° |
16 20.0°25.0° | 17 19.0°31.0° | 18 18.0°34.0° | 19 19.0°32.0° | 20 23.0°31.0° | 21 23.0°34.0° | 22 24.0°38.0° |
23 21.0°27.0° | 24 22.0°29.0° | 25 22.0°30.0° | 26 21.0°32.0° | 27 21.0°33.0° | 28 21.0°34.0° | 29 21.0°26.0° |
30 25.0°33.0° | 31 25.0°35.0° |
Temperature Graph (°C)
The average Hanoi temperature during May is around 29.3°C (84.74°F).
| Month | High | Low | Changes |
| April | 30.6°C (87.08°F) | 21.7°C (71.06°F) | +3.1°C (37.58°F) |
| May* | 34.5°C (94.1°F) | 24.9°C (76.82°F) | +3.7°C (38.66°F) |
| June | 35.6°C (96.08°F) | 26.9°C (80.42°F) | +1.6°C (34.88°F) |
Humidity Graph (%)
The average humidity in May in Hanoi is 73.1%, which is 3.2% lower than April and 3.1% higher than June.
Rainfall Graph (mm)
Average rainfall in May in Hanoi: 133.0mm
| April | May* | June |
| 91.0mm (+42.0mm) | 133.0mm | 162.0mm (-29.0mm) |
Rain Days Graph
Average rain days in May in Hanoi: 7.0 days
Daylight Graph
Average daylight in May in Hanoi: 13.1h
Tips for visiting Hanoi in May
May’s weather seems not to be very mild as it is nearly as hot as summer months when daily average temperature varies between 25°C and 31°C, while Hanoi rainy season is starting with 133 mm of precipitation and about 7 rainy days. Not to mention its heavy showers are unpredictable that may occur at anytime of the day. This type of rain doesn’t last very long but can still annoy tourists a little bit, but the bright side maybe a special experience of wearing raincoat and walking in the rain with your partners or friends.
There are not many interesting events happening around the cities except for its Labour Day celebration with parading, art shows and firework night sometimes. 19th May is President Ho Chi Minh’s birthday when Hanoi is delighted with some monumental events both inside and outside Ho Chi Minh Mausoleum.
In general, Hanoi in May is not very interesting; but its low price index and sparse amount of tourist may score some marks.
What to pack
Apart from summer outfits, tourists should remember to pack light jackets as the temperature can reduce and raincoats in case of rain. Keep your body hydrated with bottles of mineral water as well as using insect repellent frequently during the transitional season.
Frequently asked questions
How is the weather in Hanoi in May?
May is a hot month in Hanoi with an average temperature of 29.3°C. Hanoi's temperature in May ranges between 24.9°C (76.82°F) and 34.5°C (94.1°F).
Is Hanoi humid in May?
Yes, it is. The humidity of Hanoi in May is around 73.1% and rarely falls below 44.0%.
Does it rain often in Hanoi in May?
No, it does not. Hanoi has only 7.0 rainy days in May with an approximate 133.0mm (5.24") of precipitation.
How many hours of daylight are there in May in Hanoi?
In May, Hanoi's average day-length is 13.1 hours.
How long is the sun out per day in Hanoi in May?
The average sunshine hours of Hanoi in May is 12.0 hours.
