Halong Bay Weather

What is the weather like in Halong Bay, Vietnam right now? Currently: °C. .

Floating village and rock islands in Halong Bay, Vietnam

7 Days Weather Forecast

Local hourly Halong Bay weather forecast of rain, temperature, sunrise, humidity, wind and pressure.

Fri, 22 August Slight rain showers
High 30°C
Low 27°C
  • Sun: 05:33
  • Wind: 14.5 km/h
  • Humidity: 87%
  • Rain: 2.7mm
Sat, 23 August Thunderstorm
High 30°C
Low 25°C
  • Sun: 05:33
  • Wind: 10.7 km/h
  • Humidity: 87%
  • Rain: 3.1mm
Sun, 24 August Thunderstorm
High 35°C
Low 26°C
  • Sun: 05:33
  • Wind: 10.9 km/h
  • Humidity: 87%
  • Rain: 0.9mm
Mon, 25 August Thunderstorm
High 31°C
Low 27°C
  • Sun: 05:33
  • Wind: 24.1 km/h
  • Humidity: 87%
  • Rain: 5.6mm
Tue, 26 August Thunderstorm
High 28°C
Low 26°C
  • Sun: 05:34
  • Wind: 17.1 km/h
  • Humidity: 87%
  • Rain: 11.5mm
Wed, 27 August Thunderstorm
High 28°C
Low 26°C
  • Sun: 05:34
  • Wind: 14.6 km/h
  • Humidity: 87%
  • Rain: 10.1mm
Thu, 28 August Slight rain showers
High 29°C
Low 26°C
  • Sun: 05:34
  • Wind: 11.8 km/h
  • Humidity: 87%
  • Rain: 5.7mm

Last updated: August 22, 2025

Halong Bay Climate

Halong Bay enjoys a humid subtropical climate, categorized as Cwa according to the Köppen classification. This means that winters are generally dry, while summers can be quite humid. Throughout the year, temperatures can vary quite a bit, with highs reaching around 31.2°C (88.16°F) and lows dropping to about 14.1°C (57.38°F). On average, the yearly temperature hovers around a comfortable 23.5°C (74.39°F). Rainfall is a notable feature of this climate, with an annual average of nearly 1379.9 millimeters (54.33 inches), contributing to the lush greenery and stunning scenery that Halong Bay is famous for.

Monthly Averages

Halong Bay experiences a variety of weather throughout the year. January and February have cooler temperatures, with highs around 19-20°C and fewer rainy days. As spring approaches in March and April, temperatures rise, reaching up to 26°C, accompanied by more precipitation. The summer months of May through August are warm and humid, with highs peaking at over 31°C and frequent rainfall. Autumn brings a gradual decrease in temperatures and rainy days, making it a pleasant time to visit. December cools down again, averaging around 20°C.
Months High / Low (°C) Rain
January 19.1° / 14.1° 7.5 days
February 20.4° / 15.7° 5.2 days
March 23.0° / 18.5° 8.3 days
April 26.1° / 21.1° 9.5 days
May 29.9° / 24.6° 16.5 days
June 31.2° / 26.3° 21.3 days
July 31.1° / 26.2° 22.8 days
August 30.8° / 25.7° 22.6 days
September 30.4° / 24.8° 16.2 days
October 28.0° / 21.8° 8.3 days
November 25.1° / 19.1° 5.7 days
December 20.5° / 14.8° 5.0 days

Frequently asked questions

What is the coldest month in Halong Bay?

January is the coldest month in Halong Bay, with average temperatures dipping to around 14.1°C (57.4°F). Be prepared for cool weather and consider bringing warmer clothing if you're planning to visit during this time.

How much rain does Halong Bay get every year?

Halong Bay receives about 1,380 mm (54.3 inches) of rainfall each year, spread over approximately 149 days.

What month has the least rain in Halong Bay?

The driest month in Ha Long Bay is December, featuring approximately 5 rain days and about 18.3 mm (0.72 inches) of precipitation.

What months are the most humid in Halong Bay?

April and May in Halong Bay experience the highest humidity levels of the year, with averages reaching around 83.4%. During these months, visitors can expect a muggy atmosphere, so it's advisable to stay hydrated and plan activities accordingly.

What month has the least sunshine in Halong Bay?

The month with the least sunshine in Halong Bay is January, averaging just 5.8 hours of sunshine per day.

Which month has the most daylight in Halong Bay?

In June, Halong Bay enjoys an average of 13.4 hours of daylight, making it the month with the longest daylight hours of the year.

What is the hottest month in Halong Bay?

June is the hottest month in Halong Bay, with temperatures typically ranging from 26.3°C (79.3°F) to a high of 31.2°C (88.2°F). During this time, you can expect warm, sunny days, making it a popular season for visitors.

When does Halong Bay have the most sunshine?

June boasts an impressive average of 12.5 hours of sunshine each day, making it Halong Bay's sunniest month.

What month has the most rainfall in Halong Bay?

The wettest month in Ha Long Bay is **July**, with about **22.8 rainy days** and total precipitation reaching **234.4 mm (9.23 inches)**.

What month has the least humidity in Halong Bay?

December is the least humid month in Halong Bay, with an average relative humidity of just 72.5%.

Which month has the shortest daylight in Halong Bay?

December has the shortest days in Ha Long Bay, offering an average of just 10.9 hours of daylight.

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MONTHLY AVERAGES

Want to know what the weather is like in Halong Bay in a specific month?

TODAY'S FORECAST

The weather today in Halong Bay:
28°C
Humidity 87%
Wind 6.0 km/h
Sunrise 22:32

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