Weather in Hanoi

Live weather and 7-day forecast for Hanoi, Vietnam, followed by what to expect in each month of the year.

Sunrise 05:55 Sunset 17:28 Daylight 11h 33m Sun times →

Climate in Hanoi: month by month

Averaged over 2023–2025, the warmest month in Hanoi is July, with highs around 33 °C (92 °F) and lows around 26 °C (79 °F); the coolest is January, with highs around 22 °C (71 °F) and lows around 13 °C (56 °F).

Hanoi gets about 2,249 mm (89 in) of precipitation a year. The wettest month is June (447 mm over about 24 days) and the driest is December (22 mm).

Month	Avg high	Avg low	Precipitation (mm)	Wet days	Daylight
January	22°	13°	47	8	10h 59m
February	23°	16°	44	12	11h 27m
March	26°	18°	47	8	12h 0m
April	31°	23°	90	12	12h 37m
May	31°	25°	227	18	13h 8m
June	33°	26°	447	24	13h 24m
July	33°	26°	345	23	13h 18m
August	32°	26°	377	24	12h 52m
September	31°	25°	428	21	12h 17m
October	29°	22°	128	9	11h 41m
November	27°	18°	47	5	11h 9m
December	23°	15°	22	6	10h 52m

Averages of daily values from the ERA5 reanalysis for 2023–2025 at Hanoi's coordinates (model elevation 19 m), via Open-Meteo (CC BY 4.0). Three recent years are not a 30-year climate normal; reanalysis smooths local extremes and tends to count more light-rain days than a rain gauge would. Daylight is sunrise to sunset on the 15th of each month.

Weather questions for Hanoi

What is the hottest month in Hanoi?

July, with average highs of 33 °C (92 °F) and lows of 26 °C (79 °F) over 2023–2025. The coolest month is January, averaging 22 °C (71 °F) by day and 13 °C (56 °F) at night.

What is the rainiest month in Hanoi?

June, with about 447 mm of precipitation on roughly 24 days. The driest month is December (22 mm), and the yearly total is around 2,249 mm.

When is the weather mildest in Hanoi?

Going by the averages, November–March are the months with average daytime highs between 18 °C and 27 °C (64–81 °F) — warm but not hot. June is the month most likely to bring rain.

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About this forecast

The live forecast comes from Open-Meteo, which blends models from national weather services and is fetched fresh in your browser on each visit. Times in the hourly outlook are Hanoi local time (Asia/Ho_Chi_Minh).