Ha Long weather and climate in 2025
January
February
March
April
May
June
July
August
September
October
November
December
Overview
July
< June
Overview
August >
Ha Long weather and climate in 2025
January
February
March
April
May
June
July
August
September
October
November
December
Overview
July
< June
Overview
August >
Day
32 °C
Night
26 °C
Sea
29 °C
Precipitation
447 mm
in month
Rainy days
17 days
in month
Daylight
13 hours
average
Sunshine
7 hours
average
Humidity
79 %
Day
32 °C
Night
26 °C
Sea
29 °C
Precipitation
447 mm
in month
Rainy days
17 days
in month
Daylight
13 hours
average
Sunshine
7 hours
average
Humidity
79 %
Overview: Ha Long
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We make the most from 40 years of historical weather data to predict the best weather conditions.Weather overview for Ha Long
Weather overview
Ha Long (Vietnam) in general has a tropical climate. The day temperatures range from 19 °C (67 °F) in January to 32 °C (89 °F) in July. The least rainy month in Ha Long is December with its 4 days of rain, the rainiest month is August, when it rains 19 days. Temperatures during the night go from 14 °C (56 °F) in January to 26 °C (78 °F) in July.
January weather
The day temperature reaches its minimum, its value is 19 °C (67 °F) in Ha Long, and the minimum of the night temperature can be noticed too in January. The tourist season continues. The beginning of the rise of the number of rainy days could be noticed, its value is 6 days. The number of sun hours (without clouds) continues to descent, the value of this measure is 3 hours.
February weather
The tourist season continues in Ha Long. The beginning of the rise of the night temperature could be noticed in this month. The number of rainy days rises similarly to the previous month, with its value of 8 days, while the beginning of the rise of the rainfall amount could be noticed, with its value being 37 mm (1.46 in). The minimum of the number of sun hours (without clouds) can be noticed, with its value being 2 hours.
March weather
The ongoing tourist season is noticeable in Ha Long. The day temperature rise's start could be observed, its value is 22 °C (71 °F). The rainfall amount continues to rise, the value of this measure is 47 mm (1.86 in), and the number of rainy days rises similarly to the previous month too, with its value being 10 days. The humidity reaches its maximum, with its value being 85 %.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.April weather
The day temperature continues to rise, its value is 26 °C (78 °F) in Ha Long, and the rise of the night temperature can be observed as well, its value is 20 °C (68 °F). The tourist season is taking place. The number of rainy days descent's start could be observed, with its value of 9 days, while the rise of the rainfall amount can be observed, the value of this measure is 66 mm (2.61 in).
May weather
The ongoing tourist season is noticeable this month in Ha Long. The day temperature rises similarly to the previous month, its value is 30 °C (86 °F), and the night temperature rises similarly to the previous month as well, the value of this measure is 23 °C (74 °F). The number of rainy days starts to rise, its value is 13 days, while the rise of the rainfall amount can be observed, the value of this measure is 181 mm (7.12 in).
June weather
The wet season is about to start in Ha Long. The rise of the day temperature can be observed, with its value of 32 °C (89 °F). The rise of the rainfall amount can be observed, with its value of 257 mm (10.13 in), and the rise of the number of rainy days can be observed as well, with its value being 16 days. The day length is on its maximum.
July weather
The maximum of the day temperature is observable, its value is 32 °C (89 °F) in Ha Long, and the night temperature reaches its maximum too, its value is 26 °C (78 °F). The number of rainy days continues to rise, its value is 17 days, while the rainfall amount is on its maximum, with its value being 447 mm (17.59 in). The wet season is taking place. The maximum of the number of sun hours (without clouds) is observable, with its value being 7 hours.
We make the most from 40 years of historical weather data to predict the best weather conditions.August weather
The night temperature starts to descent, the value of this measure is 25 °C (77 °F) in Ha Long. The ongoing wet season is noticeable this month. The rainfall amount descent's start could be observed, with its value being 411 mm (16.19 in), while the maximum of the number of rainy days can be noticed in this month. The beginning of the descent of the number of sun hours (without clouds) could be noticed in August.
September weather
The day temperature starts to descent, with its value being 31 °C (88 °F) in Ha Long, while the night temperature continues to descent, the value of this measure is 24 °C (76 °F). The wet season continues in September. The descent of the rainfall amount can be observed, with its value being 293 mm (11.54 in), while the beginning of the descent of the number of rainy days could be noticed, with its value of 16 days. The minimum of the wind speed is observable in September.
October weather
The tourist season is at its beginning in Ha Long. The day temperature continues to descent, with its value of 29 °C (84 °F), and the night temperature descents similarly to the previous month as well, its value is 22 °C (71 °F). The number of rainy days descents similarly to the previous month, the value of this measure is 10 days, and the rainfall amount continues to descent as well, the value of this measure is 81 mm (3.21 in).
November weather
The tourist season is taking place in Ha Long. The day temperature descents similarly to the previous month, with its value being 26 °C (78 °F), and the night temperature descents similarly to the previous month as well, with its value being 18 °C (65 °F). The descent of the number of rainy days can be observed, with its value being 7 days, and the rainfall amount descents similarly to the previous month as well, its value is 37 mm (1.44 in).
December weather
The ongoing tourist season is noticeable in December in Ha Long. The day temperature descents similarly to the previous month, with its value of 22 °C (71 °F), and the night temperature continues to descent too, the value of this measure is 15 °C (59 °F). The number of rainy days is on its minimum, the value of this measure is 4 days, and the rainfall amount reaches its minimum too, with its value of 21 mm (0.81 in).
FAQs
How many days of precipitation on average can I expect in Ha Long in January?
There are 6 days, which are rainy in January in Ha Long, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 1.3 days of the week, or in general - 19 % days.
What is the night temperature in Ha Long in February?
The average night temperature in Ha Long in February is 15 °C (58 °F). Nights can be cooler, morning running can be refreshing but choose appropriate clothing, evening outdoor sitting can be pleasant but you can also be cold.
Is there a dry season in Ha Long in March?
No, March is not a dry month in Ha Long, expect rain approximately 10 days in a month.
Is there a wet season in Ha Long in April?
No, there is no wet season in Ha Long in April - you can expect 9 days of rain during the month.
We make the most from 40 years of historical weather data to predict the best weather conditions.Are there good conditions to visit in May in Ha Long?
May is a good month to visit Ha Long. The daily temperatures in this month reach pleasant 30 °C (86 °F). The temperature of the sea will be perfect at 26 °C (79 °F). At night, temperatures hover around a pleasant 23 °C (74 °F).
What is the humidity in Ha Long in July?
Humidity in Ha Long in July is 79 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
How windy is it in Ha Long in August?
An average wind scale that can be expected in Ha Long in August is 2. It is rather a milder or unnoticeable wind, therefore it will not bother you during your holiday.
How many hours of sun to expect in September in Ha Long?
There is an average length of sunshine of 6 hours per day in September in Ha Long.
Is it hot in Ha Long in October?
In Ha Long in October, 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 Ha Long in November?
In November in Ha Long, the average daily temperatures will be 26 °C (78 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
What is the sea temperature in Ha Long in December?
In December in Ha Long expect the sea to be warm at 22 °C (72 °F). This warm sea is nice for swimming, maybe cold for some, but most people can spend a long time in it.