Best Time to Visit Hanoi
The best time to visit Hanoi is October to April, when the average temperature is 15–25°C and rainfall is low for Hanoi, at 22–124 mm a month.
Hanoi weather by month
The wettest month in Hanoi is August with 322 mm of rain, and the warmest is June at an average 29°C. The coolest is January at 15°C.
| Month | Average temperature | Rainfall | Verdict |
|---|---|---|---|
| January | 15°C / 60°F | 32 mm | Best |
| February | 18°C / 65°F | 22 mm | Best |
| March | 21°C / 71°F | 49 mm | Best |
| April | 25°C / 77°F | 78 mm | Best |
| May | 28°C / 82°F | 179 mm | Wet |
| June | 29°C / 83°F | 201 mm | Wet |
| July | 28°C / 83°F | 300 mm | Wet |
| August | 28°C / 82°F | 322 mm | Wet |
| September | 27°C / 80°F | 223 mm | Wet |
| October | 24°C / 75°F | 124 mm | Best |
| November | 20°C / 69°F | 52 mm | Best |
| December | 16°C / 61°F | 25 mm | Best |
How we pick the best months
- Best: an average temperature of 15–28°C and low rainfall for Hanoi: under 150 mm, and no more than 126 mm, a quarter above Hanoi's median month (never set below 60 mm).
- If no month qualifies, we show the three driest months that average 10–30°C instead.
- Wet: 150 mm of rain or more. Rainy: more than 126 mm. Hot: 29°C or more on average. Cool: under 15°C. Cold: under 5°C.
Averages cover day and night, so afternoons are warmer than the figure shown. Weather is only one reason to pick a month: school holidays, festivals and prices matter too.
Search flights to Hanoi
Picked a month? Compare fares to Hanoi (HAN) for your dates.
Book a hotel in Hanoi
Find hotels in Hanoi
Hotels, hostels & more · Trip.com
Where these numbers come from
Monthly averages for January 2001 – December 2020 from the NASA POWER project, for the area around Noi Bai (HAN) at 21.22, 105.81. The model covers a grid about 50 km across, so a coastal or hilly spot can run a degree or two different. Retrieved 12 September 2026.
The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center (LaRC) Prediction of Worldwide Energy Resource (POWER) Project funded through the NASA Earth Science/Applied Science Program.