Hanoi Weather in May
In May, Hanoi averages a high of 32°C (89°F) and a low of 25°C (77°F), from 17 years of daily records (1975–2026).
32°C
Average high
89°F
25°C
Average low
77°F
40°C
Record high
104°F · May 19, 2019
18°C
Record low
64°F · May 6, 1994
What May Is Like in Hanoi
- May 2026 was the warmest May in 17 years of records, 1.3°C (2.4°F) above the long-run average.
- A typical May brings 4.8 days above 35°C (95°F).
- The coldest May reading, 18°C (64°F) on May 6, 1994, has not been matched in 32 years.
- The warmest May in the record was 2026; the coldest was 2022.
At least 1 mm of rain falls on 32% of May days.
Warmest: 1977 (33.6°C)Latest: 2026 (32.9°C)10-year averageLong-run average (31.9°C)
Look Up a Day in May
See the weather in Hanoi on any May date, year by year.
Source: NOAA GHCN-Daily, Noibai Intl (1974–2016); Ha Dong (2012–2026). Averages cover 1975–2026. How we compute this