Historical Weather in Hanoi, Vietnam
See 55+ years of weather history for any date in Hanoi going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Hanoi, Vietnam, based on 55+ years of weather data.
Temperatures shown in Celsius with Fahrenheit in parentheses. Rainfall in millimetres, snowfall in centimetres.
Hanoi Weather by Month
5 of the 10 warmest Januarys on record in Hanoi have come since 2012.
February 2026 was the 2nd warmest February in 11 years of records, 1.7°C (3.1°F) above the long-run average.
7 of the 10 warmest Marches on record in Hanoi have come since 2012.
Hanoi's hottest April day on record is a recent one: 41°C (105°F) on April 27, 2024.
May 2026 was the warmest May in 17 years of records, 1.3°C (2.4°F) above the long-run average.
June 2026 was the warmest June in 16 years of records, 1.6°C (2.8°F) above the long-run average.
5 of the 10 warmest Julys on record in Hanoi have come since 2012.
August 2026 was the 3rd warmest August in 17 years of records, 0.5°C (0.9°F) above the long-run average.
September 2025 was the warmest September in 16 years of records, 0.9°C (1.7°F) above the long-run average.
5 of the 10 warmest Octobers on record in Hanoi have come since 2011.
5 of the 10 warmest Novembers on record in Hanoi have come since 2011.
December 2025 was the warmest December in 15 years of records, 2.7°C (4.8°F) above the long-run average.
Source: NOAA GHCN-Daily, Noibai Intl (1974–2016); Ha Dong (2012–2026). Records through 2026.