What’s the climate like in Halong Bay?
The current climate of Halong Bay features average monthly temperatures ranging from highs of 33°C during the day to lows of 21°C. The average yearly temperature is around 28°C. At night, temperatures in the colder months average around 15°C and in the warmer months around 27°C.
The highest temperature recorded in Halong Bay in recent years was 41°C in June 2017. The lowest daytime temperature recorded was 6°C in January 2016.
On average, Halong Bay receives 1884 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
The typhoon season in Halong Bay runs from June to November.
Curious about the climate in other parts of Vietnam? Check out the weather and climate in places like Hanoi, Ho Chi Minh City, Hội An, or have a look at other destinations in Vietnam.
Best time to visit Halong Bay?
The best time to visit Halong Bay for sunny weather is January through April, November and December. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Halong Bay. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Halong Bay
The climate table of Halong Bay shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 21 | 22 | 24 | 27 | 31 | 33 | 33 | 32 | 32 | 30 | 27 | 23 |
| Temp. min (°C) | 16 | 17 | 20 | 23 | 26 | 28 | 27 | 27 | 26 | 24 | 21 | 17 |
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| Precipitation (mm) | 51 | 44 | 45 | 92 | 141 | 247 | 299 | 454 | 302 | 139 | 50 | 20 |
| UV Index | 5 | 5 | 6 | 7 | 8 | 7 | 7 | 7 | 7 | 7 | 6 | 5 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 28°C
- Highest temperature: 33°C in June and July
- Lowest temperature: 21°C in January
- Precipitation: 1884 mm per year, averaging 157 mm per month
- Driest months: 20 mm in December, 44 mm in February and 45 mm in March
- Wettest months: 454 mm in August, 302 mm in September and 299 mm in July
Table of Contents
Average Temperature per Month in Halong Bay
This graph shows the average maximum temperatures per month in Halong Bay, Vietnam. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Halong Bay
This graph shows how much precipitation Halong Bay, Vietnam, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Halong Bay
This graph shows the average UV index per month in Halong Bay, Vietnam. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Halong Bay
This graph shows the average yearly temperature in Halong Bay, Vietnam. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Halong Bay
This chart shows the total yearly precipitation in Halong Bay, Vietnam, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Halong Bay
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Average Weather in Halong Bay by Month
Click on a month below to see detailed weather info for Halong Bay. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
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