Hanoi · Vietnam

August

The rainiest month — 318mm of rain and overcast skies, but the Mid-Autumn Festival preparations begin in the Old Quarter.

Avoid

#10 of 12 months

There are better months for Hanoi — see the full ranking below.

Climate

High

32°C

Low

26°C

Rain

318mm

Sun

5.5hrs/day

30-year climate normals · Open Meteo ERA5

How August scores in Hanoi

Weather

Low

Value

Very good

Crowds

Good

Events

Above average

Atmosphere

Good

↑Mid-Autumn Festival (Tet Trung Thu) preparations begin in August — Hang Ma Street starts filling with mooncakes, lanterns, and traditional toys; a preview of the Old Quarter's most colourful transformation
↑Despite the heavy rain, Hanoi's indoor culture is superb: the Vietnam Museum of Ethnology is one of Southeast Asia's finest, and the city's café scene is the best reason to be stuck indoors anywhere in the region
↑Prices are at their most affordable among the summer months — hotel rates are competitive and street food costs are at their lowest

↓318mm of rain is Hanoi's wettest month of all — daily deluges can last for hours, flooding streets that drain slowly; choosing accommodation on higher ground or with covered access matters
↓Sunshine hours drop to 5.5 — overcast skies dominate the morning before the daily rain arrives; the blue-sky Hanoi of autumn and spring photographs is absent
↓The heat (32°C / 84% humidity) remains at its summer maximum even as the rain intensifies — the combination of wet and hot is Hanoi at its most challenging

Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Hanoi, not across destinations. Methodology →