Hanoi in May: Weather & climate information
- As spring concludes this month, Hanoi experiences rising temperatures and increased rainfall.
- While early mornings remain mild, unexpected heavy showers can occur.
- However, as humidity decreases, visitors can enjoy exploring the city under bright, sunny skies.
May marks the transition from spring to summer in Hanoi, with temperatures rising and humidity increasing. While the weather can be warm, occasional tropical depressions may lead to cooler, rainy days, making the climate somewhat unpredictable. Visitors should prepare for both sunny and wet conditions during this time.
May Averages
In May, Hanoi experiences warm weather with temperatures ranging from 24.9°C to 34.5°C. Expect 133mm of rainfall over about 7 rainy days and enjoy 12 sunshine hours daily.| 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 14 years ( 2010 to 2024).
- 2010
- 2011
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
1 25.48°33.92° | 2 23.37°26.13° | 3 25.3°32.07° | 4 24.07°34.6° | 5 22.52°24.07° | ||
6 24.62°33.11° | 7 24.92°33.3° | 8 24.76°32.37° | 9 23.82°29.1° | 10 22.83°30.7° | 11 23.76°29.8° | 12 24.78°32.74° |
13 25.06°31.8° | 14 24.32°32.86° | 15 24.47°32.72° | 16 25.42°32.13° | 17 24.23°30.37° | 18 24.94°30.71° | 19 24.79°32.05° |
20 23.51°31.24° | 21 23.64°31.67° | 22 24.63°33.71° | 23 25.2°35.04° | 24 25.74°33.1° | 25 24.61°31.01° | 26 25.93°34.72° |
27 26.27°34.78° | 28 27.19°28.83° | 29 27.14°33.47° | 30 26.33°36.21° | 31 27.26°33.39° |
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 2025
May in Hanoi can be quite warm, with temperatures typically ranging from 26°C to 33°C. The rainy season kicks in around this time, bringing approximately 150 mm of rainfall over about 8 rainy days. Showers can be sudden and heavy, but they often pass quickly, offering a unique experience of strolling under rain-soaked streets with friends or loved ones.
While May doesn’t host a wide array of events, the Labour Day holiday on May 1st features parades, cultural performances, and sometimes fireworks. Additionally, May 19th marks the birthday of President Ho Chi Minh, celebrated with significant events at the Ho Chi Minh Mausoleum and across the city.
Overall, visiting Hanoi in May may not offer the most exciting itinerary, but the lower prices and smaller crowds can make for a pleasant experience.
What to Pack
In addition to summer clothing, be sure to bring light jackets or sweaters, as evening temperatures can drop slightly. A raincoat or portable umbrella is recommended for unexpected downpours. Stay hydrated by carrying bottled water and remember to apply insect repellent regularly, particularly as the wet season brings an increase in mosquitoes.
