Hanoi weather in May
In May, Hanoi has an average high of 32 °C90 °F and an average low of 24 °C75 °F, with about 179 mm7.0 in of precipitation. It is the 4th warmest month of the year and ranks 5th for precipitation.
How May compares with other months
Compared with April, May is 2.4 °C4.2 °F warmer on average and wetter by 101 mm4.0 in. Compared with June, May is 1 °C1.7 °F cooler on average and drier by 22 mm0.9 in. Daylight lasts about 13.1 hours around the middle of the month. Average relative humidity is 80% and the average cloud amount 80%.
Is May a good time to visit Hanoi?
May is not among the most comfortable months by our comfort score: it is hot (average high 32 °C90 °F), it is fairly wet (179 mm7.0 in) and it is humid (80%). The most comfortable months in Hanoi are November–March.
What to wear in May
For Hanoi in May, pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
May in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Hanoi | 3290 | 2475 | 1797.0 |
| Thanh Xuân | 3290 | 2475 | 1797.0 |
| Gia Lâm | 3289 | 2475 | 1766.9 |
| Bắc Ninh | 3289 | 2475 | 1766.9 |
| Bắc Giang | 3289 | 2474 | 1736.8 |
| Hải Dương | 3289 | 2475 | 1766.9 |
| Phủ Lý | 3290 | 2475 | 1736.8 |
| Thái Nguyên | 3290 | 2374 | 1787.0 |
| Nam Định | 3188 | 2476 | 1746.9 |
Other months in Hanoi
- January21 °C69 °F / 11 °C52 °F
- February24 °C75 °F / 13 °C56 °F
- March27 °C81 °F / 17 °C62 °F
- April31 °C88 °F / 20 °C69 °F
- May32 °C90 °F / 24 °C75 °F
- June32 °C90 °F / 26 °C78 °F
- July32 °C90 °F / 26 °C78 °F
- August32 °C89 °F / 25 °C77 °F
- September31 °C87 °F / 24 °C75 °F
- October28 °C83 °F / 20 °C69 °F
- November25 °C77 °F / 16 °C61 °F
- December21 °C70 °F / 12 °C53 °F
Frequently asked questions
How warm is Hanoi in May?
In May the average high in Hanoi is 32 °C (90 °F) and the average low is 24 °C (75 °F).
Does it rain a lot in Hanoi in May?
On average about 179 mm (7.0 in) of precipitation falls in May; it ranks 5th of the 12 months.
Is May the warmest month in Hanoi?
No. The warmest month in Hanoi is June, with an average high of 32 °C (90 °F). The coldest month is January, with an average low of 11 °C (52 °F).
How long is the day in Hanoi in May?
In the middle of May the day in Hanoi lasts about 13.1 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Hanoi in May?
The average relative humidity in May is about 80%. Combined with warm days, it can feel muggy.
How cloudy is Hanoi in May?
On average about 80% of the sky is covered by cloud in May. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 88 m, while Hanoi lies at about 10 m. Temperatures on this page were therefore adjusted by +0.5 °C0.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.