Hanoi Weather in December
In December, Hanoi averages a high of 22°C (72°F) and a low of 15°C (60°F), from 15 years of daily records (1975–2026).
22°C
Average high
72°F
15°C
Average low
60°F
32°C
Record high
89°F · December 4, 1990
5°C
Record low
41°F · December 31, 1975
What December Is Like in Hanoi
- December 2025 was the warmest December in 15 years of records, 2.7°C (4.8°F) above the long-run average.
- The coldest December reading, 5°C (41°F) on December 31, 1975, has not been matched in 51 years.
- The December heat record, 32°C (89°F) on December 4, 1990, has stood for 36 years.
- The warmest December in the record was 2025; the coldest was 1982.
At least 1 mm of rain falls on 10% of December days.
Warmest: 1977 (24.0°C)Latest: 2025 (23.7°C)10-year averageLong-run average (21.8°C)
Look Up a Day in December
See the weather in Hanoi on any December date, year by year.
Source: NOAA GHCN-Daily, Noibai Intl (1974–2016); Ha Dong (2012–2026). Averages cover 1975–2026. How we compute this