Hanoi weather and climate
January
February
March
April
May
June
July
August
September
October
November
December
Overview
Hanoi weather and climate
January
February
March
April
May
June
July
August
September
October
November
December
Overview
Day
32 °C
Night
23 °C
Sea
27 °C
Precipitation
182 mm
in month
Rainy days
13 days
in month
Daylight
13 hours
average
Sunshine
6 hours
average
Humidity
83 %
Day
32 °C
Night
23 °C
Sea
27 °C
Precipitation
182 mm
in month
Rainy days
13 days
in month
Daylight
13 hours
average
Sunshine
6 hours
average
Humidity
83 %
Overview: Hanoi
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Weather overview
Hanoi (Vietnam) is a place with a tropical climate. Temperatures during the day are in the range from 20 °C (68 °F) in January to 33 °C (91 °F) in June. The least rainy month in Hanoi is December with its 3 days of rain, the rainiest month is July, when it rains 18 days. The highest night temperatures could be experienced in July with 26 °C (78 °F), the lowest in January with 14 °C (57 °F).
January weather
The tourist season continues in Hanoi. The day temperature is on its minimum, with its value being 20 °C (68 °F), and the minimum of the night temperature can be noticed as well, with its value of 14 °C (57 °F). The number of sun hours (without clouds) descents similarly to the previous month, its value is 2 hours. The wind speed reaches its maximum in January.
February weather
The beginning of the rise of the day temperature could be noticed in Hanoi. The tourist season continues. The number of rainy days rises similarly to the previous month, with its value being 7 days, while the rainfall amount rise's start could be observed, its value is 27 mm (1.07 in). The number of sun hours (without clouds) is on its minimum, with its value being 2 hours.
March weather
The day temperature continues to rise, its value is 23 °C (73 °F) in Hanoi, and the night temperature continues to rise too, with its value of 17 °C (63 °F). The rise of the rainfall amount can be observed, its value is 44 mm (1.71 in), and the number of rainy days continues to rise as well, the value of this measure is 10 days.
April weather
The day temperature continues to rise, the value of this measure is 28 °C (82 °F) in Hanoi, and the night temperature rises similarly to the previous month as well, the value of this measure is 21 °C (69 °F). The rise of the rainfall amount can be observed, with its value of 78 mm (3.08 in). The number of sun hours (without clouds) rise's start could be observed, with its value being 4 hours. The humidity reaches its maximum, the value of this measure is 86 %.
May weather
The day temperature continues to rise, with its value of 32 °C (89 °F) in Hanoi, and the night temperature rises similarly to the previous month as well, with its value of 23 °C (74 °F). The number of rainy days starts to rise, with its value being 13 days, while the rise of the rainfall amount can be observed, with its value being 182 mm (7.18 in). The number of sun hours (without clouds) continues to rise, the value of this measure is 6 hours.
June weather
The maximum of the day temperature is observable in Hanoi, while the night temperature rises similarly to the previous month, the value of this measure is 26 °C (78 °F). The wet season is about to start. The number of rainy days rises similarly to the previous month, its value is 16 days, and the rainfall amount rises similarly to the previous month too, the value of this measure is 238 mm (9.39 in).
July weather
The ongoing wet season is noticeable in Hanoi. The rise of the rainfall amount can be observed, with its value of 277 mm (10.89 in), while the number of rainy days reaches its maximum, with its value of 18 days. The night temperature reaches its maximum. The number of sun hours (without clouds) reaches its maximum, its value is 6 hours.
August weather
The wet season continues in Hanoi. The rainfall amount reaches its maximum, with its value being 281 mm (11.07 in). The number of sun hours (without clouds) starts to descent, its value is 6 hours.
September weather
The beginning of the descent of the number of rainy days could be noticed, its value is 13 days in Hanoi, and the rainfall amount starts to descent too in this month. The beginning of the descent of the day temperature could be noticed, with its value of 31 °C (88 °F), and the night temperature starts to descent too. The wind speed reaches its minimum, the value of this measure is 1.
October weather
The descent of the day temperature can be observed, with its value being 29 °C (84 °F) in Hanoi, and the descent of the night temperature can be observed as well, with its value of 22 °C (71 °F). The rainfall amount continues to descent, with its value of 114 mm (4.47 in), and the number of rainy days descents similarly to the previous month too, the value of this measure is 10 days. The number of sun hours (without clouds) descent's start could be observed in October.
November weather
The day temperature descents similarly to the previous month, the value of this measure is 26 °C (79 °F) in Hanoi. The tourist season slowly starts. The descent of the rainfall amount can be observed, and the descent of the number of rainy days can be observed as well, with its value of 6 days. The number of sun hours (without clouds) continues to descent, the value of this measure is 5 hours.
December weather
The tourist season is taking place in Hanoi. The day temperature descents similarly to the previous month, and the night temperature continues to descent as well, with its value being 15 °C (59 °F). The minimum of the number of rainy days is observable, the value of this measure is 3 days, and the minimum of the rainfall amount is observable as well, with its value of 19 mm (0.75 in).
FAQs
What is the sea temperature in Hanoi in January?
The sea will reach 20 °C (69 °F) in January in Hanoi. The sea at this temperature is quite cold, but it is already possible to stay in it for a long time and it is pleasantly refreshing on hot, steamy days.
Is February part of the wet season in Hanoi?
No, there is no wet season in February in Hanoi - you can expect 7 days of rain during the month.
What is the humidity in Hanoi in March?
Humidity in March in Hanoi is 86 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
How windy is it in Hanoi in April?
An average wind scale that can be expected in April in Hanoi is 1. It is rather a milder or unnoticeable wind, therefore it will not bother you during your holiday.
What is the night temperature in May in Hanoi?
The average night temperature in May in Hanoi is 23 °C (74 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.
How many sunny hours can I expect in Hanoi in July?
There is an average length of sunshine of 6 hours per day in July in Hanoi.
Is August part of the dry season in Hanoi?
No, August is not a dry month in Hanoi, expect rain approximately 17 days in a month.
How many days of precipitation on average can I expect in September in Hanoi?
In September in Hanoi, we can expect 13 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.1 days of the week, or in general - 45 % days.
Are there good conditions to visit in Hanoi in October?
October is a good month to visit Hanoi. The temperature during the day will be nice 29 °C (84 °F). The seawater temperature reaches ideal 28 °C (82 °F). At night, temperatures hover around a pleasant 22 °C (71 °F). You can expect just 10 days of rain during the month, taking an umbrella is not necessary.
Is it hot in November in Hanoi?
In November in Hanoi, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
What temperature can I expect during the day in December in Hanoi?
The average daily temperature in December in Hanoi is 22 °C (72 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.