Hanoi Weather & Climate: Best Time to Visit

Visitors to Hanoi can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a very warm 35°C (95°F) in June, the warmest time of the year, to a pleasant 21°C (70°F) during cooler months like January.

At night, you can expect temperatures ranging from 27°C (81°F) in June to around 15°C (59°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Hanoi is known for its substantial rainfall, with annual precipitation reaching 1832 mm (72 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, August it receives heavy rainfall, averaging 338 mm (13 in) of precipitation, recorded across 17 rainy days. In contrast, the driest month December brings less rainfall, with 37 mm (1.5 in) over 5 rainy days. For more details, please visit our Hanoi Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Hanoi. While July receives considerable daily sunshine with up to 6.5 hours, February marks the darkest time of the year, where sunshine is scarce with only 1.5 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The city experiences its highest humidity in April, reaching 89%. In January, the humidity drops to its lowest level at 81%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year