Best time to Visit Halong Bay

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halong bay in spring

Halong Bay is a breathtaking natural wonder located in Northern Vietnam. This iconic UNESCO World Heritage Site is known for its emerald waters, limestone cliffs, and traditional floating villages. It’s no surprise that Halong Bay has become one of the most visited destinations in Vietnam. However, if you’re planning a trip to Halong Bay, it’s important to know when the best time to visit is.

Luckily for you, we’ve done the research and have the answer: The best time to visit Halong Bay is during the months of October to December. During these periods, not only are temperatures mild and rainfall low, but tourists are at a minimum allowing for maximum enjoyment of this breathtaking destination.

In this article, we’ll explore the various seasons of Halong Bay and provide you with insight on others best time to visit based on your travel preferences.



Check Real-time Weather now: Halong Bay Weather 7 days


Halong Bay Weather: Best time to avoid rain and heat in Halong Bay


One of the biggest concerns for travelers is avoiding extreme weather conditions like rain and heat. Luckily, there are certain times of the year when you can experience Halong Bay in all its glory without having to deal with these issues.

Best time to visit Halong Bay is December
Image by wirestock on Freepik

Halong Bay Weather by Season


Early Winter (October to December)


The best time to avoid rain and heat in Halong Bay is from October through December. During these months, the temperature ranges from 20-28°C (68-82°F) which means that it’s pleasant enough for outdoor activities like kayaking or hiking without breaking a sweat.

halong bay in winter
Winter add an mystery feeling into Halong Bay atmosphere – Source: Wiki

The humidity levels start decreasing during this month which means you can explore the bay without feeling too sticky or uncomfortable.

It’s also worth noting that October marks the end of the rainy season so there will be fewer chances of encountering sudden showers. The comfortable weather and temparature will last until the end of the December before any huge changes.


Winter (December to February)


If you’re looking for an even cooler climate, then consider visiting during December through February. The temperature ranges from 19 -23°C and it’s getting colder.


There’s not much rain during these months, however, it’s might be a little bit crowd as we’re welcoming 2 big holiday of the years, Christmas and Vietnam Traditional Lunar New years. But it’s should be quite an unique experience to spend your holiday on a boat, right?


Spring (Feb to April)


As the winter starts to give way to the warm spring days, Halong Bay comes alive with its natural beauty and picturesque landscapes. The temperature during these months ranges from 15°C (59°F) to 25°C (77°F), making it ideal for tourists who love mild weather.

Travellers visiting Halong Bay during these months can expect clear skies, a gentle breeze, and calm waters. This makes it easy to explore the bay’s many attractions such as limestone caves, floating villages and kayaking through grottos. If you are heading out on a cruise around Halong Bay, then prepare yourself for some breathtaking sunsets – a true highlight of any trip!


Summer (May to September)


This is the perfect time of year to explore this stunning destination and experience its unique weather patterns. As the summer season begins, Halong Bay comes alive with bright sunshine, blue skies, and warm temperatures.

kayaking in halong bay
Summer make Halong Bay an ideal place for water activities – Source: Internet

Despite occasional rain showers, the general weather pattern during this time of year is pleasant and comfortable. The average temperature ranges between 25-30°C (77-86°F), making it perfect for beach activities and outdoor adventures.

The water temperature also remains warm and inviting, which makes it an ideal time for swimming or kayaking around the bay.

One thing to note is that May marks the beginning of peak domestic tourist season in Halong Bay. It’s always best to book your accommodations well in advance to avoid any disappointments.


– The best time to Visit Halong Bay without endure extreme weather is October to December.

– December to February have quite a decent temperature and good for travelers want to experience special ocassions on the Bay.

– May to September may not be the best time to visit but it still good for water based activities. However, it would be quite hot and crowd due to peak season of domestic tourist.



Halong Weather by Month

Average min and max temperatures in Ha long Bay, Vietnam

If you’re planning a trip to Halong Bay in January, it’s important to know what kind of weather to expect. The climate in the region can be unpredictable, but generally speaking, January is one of the driest months of the year. The temperature can range from 17°C to 20°C during this time, making for a comfortable and cool climate that’s perfect for outdoor activities.
One thing to note is that Halong Bay can get quite misty in January due to the cooler temperatures. This foggy weather can create an ethereal atmosphere around the limestone cliffs and islands that dot the bay. It’s also worth noting that while January may be dry overall, there is still a chance of rain or drizzle throughout the month. Be sure to pack some waterproof gear just in case!

Highest temperature 20°C
Lowest Temperature 13°C
Humidity 65%

February is the start of spring in Halong Bay and the weather is generally mild and dry. The temperature ranges from 15-20°C and quite humid. 

Highest temperature 20°C
Lowest Temperature 15°C
Humidity 78%

Extra tip:

Visitors can take part in traditional Vietnamese festivals during this month, including Tet Nguyen Dan (Lunar New Year) celebrations which showcase Vietnam’s rich culture and customs.


Halong Bay weather in March is perfect for outdoor activities, with temperatures averaging around 20-25°C and relatively low humidity levels. With clear blue skies and the sun shining bright, visitors can enjoy stunning views of the bay without worrying about heavy rainfall or unpleasantly hot weather.

Highest temperature 25°C
Lowest Temperature 20°C
Humidity 81%

Extra tips:

You may attend Yen Tu Festival to learn more about Vietnamese Tradition. 


The weather in April is mild and pleasant with temperatures ranging between 20-27°C. Unlike the summer months, April has very little rain which ensures that your plans will not be disrupted by unexpected downpours.

Highest temperature 27°C
Lowest Temperature 20°C
Humidity 81%

Extra tips:

April also could be considered as one of the most crowd month during the years. As a result, booking services in advance should be a good option. 


Visitors to Halong Bay in May can expect clear blue skies and pleasant temperatures ranging from 25°C-30°C. The water temperature is also perfect for swimming, making it a great time to take a dip in the crystal-clear waters.

Highest temperature 30°C
Lowest Temperature 25°C
Humidity 82%

Extra tips: 

Visitors could taking part in the annual Ha Long Carnival which showcases traditional Vietnamese culture and features parades, fireworks and live music performances.


June marks the start of summer in Vietnam, and temperatures rise to an average of 32°C. It would be quite hot but perfect for water based activities.

June also an off-peak season so if you’re looking for a budget time to travel Halong Bay, this month is for you.

Highest temperature 33°C
Lowest Temperature 25°C
Humidity 81%

Extra tips:

Your travel might be disrupted by extreme weather. Take a look at the forecast before booking anything. 


The temperature in July hovers around 30°C with occasional rains which add to the charm of the place. It’s also less crowded than other peak months like December or January.

Highest temperature 33°C
Lowest Temperature 25°C
Humidity 81.1%

Extra tips:

It’s “typhoon month” so checking the forecast 10 days in advance to avoid any unexpected situation.


In August, Halong Bay experiences its highest temperatures of the year with average highs hovering around 32°C (90°F). The humidity levels can be quite high as well, making it feel even warmer than it actually is. While this might not be ideal for some travelers who prefer cooler climates, those who love basking in the sun will find plenty of opportunities to do so on the many beaches and islands that litter the bay.

Highest temperature 33°C
Lowest Temperature 25°C
Humidity 81.1%

Extra tips:

There’re still a few typhoon coming this month.


On average, temperatures in Halong Bay during September range from 24°C (75°F) to 30°C (86°F) and getting cooler onwards.  However, it’s not uncommon for temperatures to get much hotter than this during the day, especially if you’re out on a boat or exploring one of the many islands in the bay. You should also be prepared for occasional rain showers, as September marks the beginning of Vietnam’s rainy season.

Highest temperature 30°C
Lowest Temperature 24°C
Humidity 81.1%

Extra Tips:

  • It’s the last off-peak season month before the bay getting crowd again. 

October is one of the best times to visit Halong Bay as it falls within its autumn season. During this time, the temperature ranges between 20°C  and 27°C, with low humidity. 

Highest temperature 27°C
Lowest Temperature 20°C
Humidity 70%

The weather in November is generally mild and pleasant with temperatures ranging from 20-25°C (68-77°F). The humidity during this time of year is generally low which means that visitors can enjoy clear blue skies and sunny days.

Although November falls within the rainy season in Halong Bay, visitors should not be discouraged as the rainfall tends to be light and sporadic. This also means that the scenery around Halong Bay becomes even more breathtaking as the rain washes over the limestone cliffs creating a mystical atmosphere

Highest temperature 25°C
Lowest Temperature 20°C
Humidity 76.5%

Extra tips:

  • It’s start changing from Autumn to Winter this month so making sure you’ll pack according to the weather.

The weather in Halong Bay in December is cooler and drier, making it an ideal time to explore the area’s natural beauty. With average temperatures ranging from 15°C to 20°C, visitors are encouraged to bring light sweaters or jackets to keep warm during the chilly evenings.


Highest temperature 20°C
Lowest Temperature 15°C
Humidity 72.5%

Extra tips:

  • December also provides an opportunity for visitors to experience local festivals and cultural events like Christmas or New Year’s Eve celebrations. 
  • December is also considered as the best time to visit Halong Bay

Halong Bay Peak season vs Shoulder season: Avoid Tourist crowds


Peak Season


As one of the most famous destination in Vietnam, no surprise that the peak season of Halong Bay last for quite long, from December to January. These 2 month mark Halong Bay’s number of tourists at highest.

halong bay in spring
It’s quite busy in Halong Bay during high season months – Source: Internet

During the peak season, Halong Bay welcomes visitors from all over the world. This time is known for clear skies and calm waters that make it ideal for cruising and kayaking on the bay. However, the weather is a bit chilly, which make it harder for water based activities like swimming or snorkerling.

Visit Halong Bay in Peak Season, visitors would also be able to join many cultural events such as Lunar New Years, Christmas or Halong Bay Festival.

With an influx of tourists during this time comes higher prices for accommodation and transportation. Therefore, it’s essential to book your travel arrangements in advance to avoid any inconvenience or disappointment.


Shoulder Season


If you hate the crowd but stil want to enjoy Halong Bay at fullest, shoulder season is time for you. The shoulder season of Halong Bay is from January to April each years.

During the shoulder season, visitors can expect fewer crowds, lower prices on accommodations and activities, and pleasant temperatures. The bay’s calm waters are perfect for kayaking and swimming, while hiking enthusiasts can explore nearby caves and mountain trails. Travelers who visit during this period will be able to fully appreciate the beauty of Halong Bay without being overwhelmed by throngs of tourists.

While the shoulder season is generally considered a great time to visit Halong Bay, it’s important to note that there may be occasional rainfall during these months, especially in March. So, take a look at the forecast before booking anything.

Kayaking in Halong Bay
Kayaking in Halong Bay


– Halong Bay’s peak season: from December to January. Clear skies and calm waters make it ideal for cruising and kayaking. Prices for accommodation and transportation are higher.

– Shoulder season is from January to April with fewer crowds and lower prices. Pleasant temperatures make it perfect for kayaking and swimming but occasional raining.


Cheapest time to visit Halong Bay


Halong Bay is one of Vietnam’s most popular tourist destinations, known for its stunning natural beauty and iconic limestone formations. However, like any other destination, the cost of visiting Halong Bay can vary depending on the time of year you choose to go. If you’re looking to save money on your trip, there are certain times when prices tend to be lower.

The cheapest time to visit Halong Bay is during the low season from May to September. While this period coincides with Vietnam’s rainy season, don’t let that deter you – rain showers are usually brief and intermittent.

During this time, many tour operators offer discounts on their packages as demand for travel slows down. You’ll also find that flights and accommodation prices are generally cheaper compared to peak season rates.

However, the reason why these month become low season is because the weather might getting quite extreme sometimes, as specially during July and August with a lot of storm coming to the Bay.  To avoiding travel disruption, watch closely the travel forecast 5 to 10 days before you book anything.

Overall, May to September could be considered as the best time to visit Halong Bay if you’d love to have a budget trip and quiet atmosphere.



Sunset in Halong Bay
Sunset in Halong Bay

In conclusion, the best time to visit Halong Bay is during the months of October to December when the weather is pleasant. 

If you want to avoid crowds and enjoy cooler weather, consider visiting  between September to November or from April to June. However, if you’re looking for sunny days and the chance to participate in outdoor activities such as swimming or kayaking, plan your trip between June to August.

No matter when you decide to visit Halong Bay, it’s sure to be a breathtaking experience with its stunning natural beauty and rich cultural heritage. So start planning your trip today and get ready for an unforgettable adventure!


Related post:


The best season to visit Halong Bay is Early Winter (from October to November). By that time, the weather is quite cool without much rain. 


If you’re looking for a cheapest time to travel  Halong bay, try to visit during Summer (May to Sep). It’s off-season in Halong Bay and many cruises operators tend to give extra discount for booking during this period. 

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