Measured, not vibes
Best Time to Visit Hanoi
By measured weather comfort, the top months for Hanoi are December, February, November — and RouteVerdict's editorial pick, which also weighs crowds and prices, is January, February, March, April, October, November, December. The table below is computed from ERA5 reanalysis data for 2020–2024, measured at Hanoi (10 m elevation).
Month by month
Hanoi weather and comfort, 2020–2024
| Month | Avg high | Wet days | Comfort | Season |
|---|---|---|---|---|
| January | 21.2°C / 70°F | 9.7 | 79 | |
| February | 22.6°C / 73°F | 10 | 80 | Best |
| March | 26.2°C / 79°F | 11 | 73 | |
| April | 28.7°C / 84°F | 10.8 | 64 | |
| May | 31.8°C / 89°F | 13.8 | 45 | Shoulder |
| June | 33.6°C / 92°F | 14.7 | 35 | |
| July | 33.3°C / 92°F | 16.5 | 35 | |
| August | 32°C / 90°F | 20.5 | 39 | |
| September | 30.7°C / 87°F | 19.5 | 45 | Shoulder |
| October | 28.1°C / 83°F | 10.8 | 67 | |
| November | 26.8°C / 80°F | 6.3 | 80 | Best |
| December | 21.4°C / 71°F | 3.3 | 92 | Best |
Comfort is RouteVerdict's 0–100 score: 100·exp(−(high−23)²/162) × (1 − min(0.35, wet days × 0.02)). The full method is on the methodology page. Weather data by Open-Meteo.com (ERA5, CC BY 4.0), 2020–2024 normals. Wet day = ≥1 mm precipitation.
FAQ
Hanoi timing questions
What is the best month to visit Hanoi?
By measured weather comfort (ERA5 2020–2024), the top months are December, February, and November, with December scoring highest. RouteVerdict's editorial pick is January, February, March, April, October, November, and December, which also weighs crowds, prices, and events.
What is the hottest month in Hanoi?
June, with an average daily high of 33.6°C (92°F).
What is the rainiest month in Hanoi?
August, averaging 20.5 days with at least 1 mm of precipitation.
When is shoulder season in Hanoi?
September and May — the best-scoring months outside both the measured top three and RouteVerdict's editorial peak-season pick.