Best time to visit · Vietnam
Best time to visit Hanoi
Hanoi averages 4 just-right days a year; no month is reliably just right, and December comes closest. Most other days miss by being too hot.
(70 to 80°F, dry, sunny)
(45 to 65°F, dry)
(80 to 92°F, bright)
Hanoi weather by month
Bars: share of each month's days that are just right (number = days). Below: average daily high. Outlined bars are the best months.
- Just right 4
- Too cool 61
- Too hot 205
- Too muggy 69
- Too gray 26
When to visit Hanoi
Hanoi rarely hits the 70 to 80°F, dry and sunny window; December comes closest, with 3 just-right days. January, February and December are mostly too cool, with average highs of 67 to 72°F (22°C). March and November are mostly muggy, with average highs of 73 to 79°F (26°C). April, May, June, July, August, September and October are mostly too hot, with average highs of 80 to 91°F (33°C).
Climate table
| Month | Avg high | Dew point | Cloud cover | Just-right days |
|---|---|---|---|---|
| January | 67°F (19°C) | 55°F (13°C) | 100% | 0 |
| February | 70°F (21°C) | 61°F (16°C) | 100% | 0 |
| March | 73°F (23°C) | 65°F (18°C) | 100% | 0 |
| April | 80°F (27°C) | 71°F (22°C) | 82% | 0 |
| May | 88°F (31°C) | 74°F (23°C) | 87% | 0 |
| June | 91°F (33°C) | 78°F (26°C) | 100% | 0 |
| July | 91°F (33°C) | 77°F (25°C) | 100% | 0 |
| August | 90°F (32°C) | 77°F (25°C) | 99% | 0 |
| September | 89°F (32°C) | 75°F (24°C) | 75% | 0 |
| October | 85°F (29°C) | 71°F (22°C) | 64% | 0 |
| November | 79°F (26°C) | 65°F (18°C) | 65% | 1 |
| December | 72°F (22°C) | 58°F (14°C) | 73% | 3 |
How Hanoi compares
Hanoi gets 4 just-right days a year with our default window; the median big US city gets 33. It ranks #1 of 3 Vietnam places on Goldilocks Map. On muggy days: 69. On gray days: 26.
See every Vietnam city ranked →
Places with a similar climate
Nearby
Hanoi averages 4 just-right days a year (70 to 80°F highs, dry, mostly sunny), according to Goldilocks Map: https://goldilocksmap.com/vietnam/hanoi/Set your own perfect weather on the map →
Numbers are expected days in a typical year from 1991 to 2020 climate normals (TerraClimate; cloud cover from CHELSA), on a grid about 35 km wide. Checked against 10 years of daily records at 28 NOAA weather stations: typical error about 10 days a year. How it works. Updated 2026-10-07.