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Halong Bay is a year-round beauty. However, depending on the time of the year, you’ll experience different benefits when visiting this natural wonder.
In this article, let’s find out the best time to visit Halong Bay in terms of weather, budget, and even a month-by-month breakdown.
IN A NUTSHELL
- The best time to visit Halong Bay weather-wise is from December to January.
- Another good option is the bay’s shoulder season, from February to April, with little rain and cool weather.
- If budget is important, consider visiting during the summer months from May to September.
December to January is the peak season
The peak season of Halong Bay starts from December to January. This period marks Halong Bay’s highest number of tourists, thanks to its ideal weather and various activities.
From the beginning of December, Halong’s beauty is at its best, with clear skies and calm waters that make it ideal for cruising and kayaking on the bay.
The temperature is quite decent, ranging from 20–25 °C (68–77 °F) to 17–20 °C (63–68 °F), with very little rainfall. Visiting Halong Bay during the peak season also gives you great chances to join cultural events such as New Year’s, Christmas, or the Halong Bay Festival.
Note that with an influx of tourists during this time, prices will definitely be more expensive for cruises and transportation. Therefore, it’s essential to book your travel arrangements in advance to avoid any inconvenience or disappointment.
February to April is the shoulder season
If you hate crowds but still want to enjoy Halong with decent weather, February to April might be an alternative time for you. This shoulder season starts with chilly temperatures in February (~15°C) and gets warmer toward the end of April (~25°C). This is also the spring season, and the blooming of flora and fauna on the towering limestone islands will coat Halong Bay with a fresh green color.
However, you can expect quite a bit of rain during this season, especially in February (with an average of 12 days of rain per month). The rain is not heavy but can last for a few days.
May to September is the low season
The cheapest time to visit Halong Bay is the low season, from May to September. Cruise operators and hotels tend to offer special discounted rates during these months, and you could save at least 10–20% compared to other seasons.
Of course, it’s cheaper for a reason. The weather can get quite extreme sometimes, especially during July and August, when many storms hit the bay. Typhoons tend to last for 2–3 days and might seriously affect your travel plans, especially if you have cruises booked during that time. It’s also the hottest period of the year, with an average temperature of 28°C, which might even rise to 32–33°C, plus a high level of humidity.
However, with careful planning, traveling to Halong Bay from May to September can still be a great trip on a good budget. Try to keep track of the weather forecast, especially within 5–7 days before your departure, to help you make a better plan and avoid any disruptions.
Halong Bay Weather
By Season
Early Winter (October to December)
The best time to avoid rain and heat in Halong Bay is during early winter, from October through December. During these months, the temperature ranges from 20–28°C (68–82°F), making it pleasant enough for outdoor activities like kayaking or hiking without breaking a sweat. Humidity levels also start decreasing, meaning you can explore the bay without feeling too sticky or uncomfortable.
It’s 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 temperatures will last until the end of December before any major changes.
Winter (December to February)
If you’re looking for an even cooler climate, consider visiting between December and February. The temperature ranges from 19–23°C and gets colder. Winter also brings two big holidays: Christmas and Vietnam’s Traditional Lunar New Year. Lots of parties and special events will be held, though the bay may get quite busy at these times.
Spring (February to April)
As winter gives way to warm spring days, Halong Bay comes alive with natural beauty and a fresh atmosphere. The temperature during these months ranges from 15°C (59°F) to 25°C (77°F).
If you visit Halong Bay during this time, you can expect clear skies, a gentle breeze, and calm waters. During February and early March, there might be some drizzle and high humidity, but it will get drier by April.
Summer (May to September)
As the summer season begins, Halong Bay comes alive with bright sunshine, blue skies, and high temperatures. The average temperature ranges between 25–30°C (77–86°F) and can get extremely hot during June or July.
Despite the high temperature, the bay still experiences occasional rain. The water temperature remains warm and inviting, making it an ideal time for swimming or kayaking around the bay.
By Month
Halong Bay Weather in January
January is one of the coldest months in Halong Bay, with cool temperatures and low rainfall. Clear skies are common, offering stunning views of the limestone karsts.
| January | |
|---|---|
| Average Temperature | 17°C |
| Average Rainfall | 18mm |
| Average Humidity | 70% |
Travel Tips
The sky might get a bit cloudy during this month.
Halong Bay Weather in February
February offers cool weather with a moderate amount of rainfall. The bay is quieter during this month, making it a good time for a peaceful visit.
| February | |
|---|---|
| Average Temperature | 18°C |
| Average Rainfall | 20mm |
| Average Humidity | 70% |
Travel Tips
You can take part in traditional Vietnamese festivals, including Tet Nguyen Dan (Lunar New Year) celebrations, showcasing Vietnam’s rich culture and customs.
Halong Bay Weather in March
March brings warmer temperatures and lower humidity. The weather is ideal for outdoor activities like sightseeing and boating.
| March | |
|---|---|
| Average Temperature | 20°C |
| Average Rainfall | 15mm |
| Average Humidity | 70% |
Travel Tips
You may attend the Yen Tu Festival to learn more about Vietnamese traditions.
Halong Bay Weather in April
April is one of the busiest months in Halong Bay, with pleasant temperatures and fewer rainfalls. It's a great time for sightseeing and enjoying boat cruises.
| April | |
|---|---|
| Average Temperature | 23°C |
| Average Rainfall | 25mm |
| Average Humidity | 75% |
Travel Tips
April can be crowded, so it’s advisable to book services in advance.
Halong Bay Weather in May
May brings warmer temperatures and an increase in rainfall. This is the start of the tourist season, making it a good time to explore the bay before it gets too crowded.
| May | |
|---|---|
| Average Temperature | 26°C |
| Average Rainfall | 30mm |
| Average Humidity | 80% |
Travel Tips
Visitors could take part in the annual Ha Long Carnival, showcasing traditional Vietnamese culture with parades, fireworks, and live music performances.
Halong Bay Weather in June
June brings hot and humid weather, with temperatures reaching their peak. It’s a good time to visit if you love the warmth, but be prepared for the heat.
| June | |
|---|---|
| Average Temperature | 29°C |
| Average Rainfall | 85mm |
| Average Humidity | 85% |
Travel Tips
The weather can get pretty hot, so make sure to stay hydrated.
Halong Bay Weather in July
July remains hot with high humidity. This is a great month for beach activities and water sports, but remember to stay cool and protected from the sun.
| July | |
|---|---|
| Average Temperature | 30°C |
| Average Rainfall | 120mm |
| Average Humidity | 85% |
Travel Tips
Halong is still pretty hot during this time, so make sure to drink lots of water and bring sunscreen.
Halong Bay Weather in August
August is the peak of the rainy season with typhoons possible. If you plan to visit, make sure to keep an eye on the weather forecast.
| August | |
|---|---|
| Average Temperature | 29°C |
| Average Rainfall | 160mm |
| Average Humidity | 90% |
Travel Tips
It’s “typhoon month” so check the weather forecast 10 days in advance to avoid unexpected situations.
Halong Bay Weather in September
September marks the last of the off-peak season. It’s quieter but also more rainy, so be prepared for showers.
| September | |
|---|---|
| Average Temperature | 28°C |
| Average Rainfall | 190mm |
| Average Humidity | 85% |
Travel Tips
This is the last off-peak month before the bay gets crowded again. Things will be quiet, but beware of the rains.
Halong Bay Weather in October
October brings mild weather with less rainfall, making it an excellent time to visit Halong Bay. It’s the start of the peak season, so the bay is busier.
| October | |
|---|---|
| Average Temperature | 25°C |
| Average Rainfall | 100mm |
| Average Humidity | 80% |
Travel Tips
Nice and decent weather to enjoy the bay with fewer chances of rain.
Halong Bay Weather in November
November marks the transition from autumn to winter. The temperatures are cooler, and the weather is ideal for exploring Halong Bay.
| November | |
|---|---|
| Average Temperature | 22°C |
| Average Rainfall | 80mm |
| Average Humidity | 70% |
Travel Tips
It’s the start of the change from autumn to winter, so make sure to pack some extra warm clothes.
Halong Bay Weather in December
December is the most crowded month of the year, with festive events and cooler temperatures. It's a great time for cultural experiences, but be prepared for crowds.
| December | |
|---|---|
| Average Temperature | 18°C |
| Average Rainfall | 15mm |
| Average Humidity | 70% |
Travel Tips
December is the most crowded month of the year, but it also offers opportunities to experience local festivals and cultural events like Christmas and New Year’s Eve celebrations. Special parties are held on board, but be advised that there will be some charges.
FAQs
Which is the best season to travel to halong bay?
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.
What’s the cheapest time to visit Halong Bay?
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.
