Climate in Hanoi

Hanoi, Vietnam has a tropical climate. The annual average temperature is about 24.5°C and the city receives roughly 1799 mm of precipitation across 144 rainy days a year, with around 1356 hours of sunshine. The warmest month is Jul (highs near 31.2°C) and the coldest is Jan (lows near 17.8°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Hanoi is classified as Tropical. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Hanoi receives about 1799 mm of precipitation a year over roughly 144 rainy days. The wettest month is Jul and the driest is Jan.

Hanoi sees an estimated 1356 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Hanoi are Jan, Feb, Dec. Conditions vary year to year — verify with a current forecast before booking.

Hanoi has a climate comfort score of 71/100, a comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.

• Climate in Ho Chi Minh City — Tropical, comfort 61/100
• Climate in Bangkok — Tropical, comfort 64/100
• Climate in Manila — Tropical, comfort 58/100