When to visit Halong Bay? Best travel guide 2025

“When to visit Halong Bay?” is a frequently asked question of many travelers when it comes to visit Vietnam. The best time to visit Ha Long Bay largely depends on your preferences regarding weather, crowds, and prices. In this blog post, Ha Long Bay Cheers Tours will give you necessary information to help you decide. 

1. Understanding Halong Bay’s climate 

Halong Bay experiences a distinct four-season climate typical in Northern Vietnam. Each season presents a unique perspective of Halong Bay’s beauty, influencing the overall travel experience: 

• Spring (March to May): Brings warmer temperatures and increasing humidity, light drizzle or mist. 
• Summer (June to August): Characterized by hot and humid weather, with the highest rainfall and the potential for tropical storms and typhoons. 
• Autumn (September to November): Widely considered the most pleasant time to visit, boasting mild temperatures, clear blue skies, and lower humidity. 
• Winter (December to February): Brings cooler, drier weather, with temperatures sometimes dropping significantly. 

Here is some information about Halong Bay temperature and humidity:

	The lowest temperature	The highest temperature	Humidity
January	13°C	26°C	65%
February	15°C	30°C	68%
March	18°C	34°C	75%
April	18°C	36°C	75%
May	26°C	36°C	78%
June	27°C	40°C	76%
July	28°C	40°C	77%
August	26°C	37°C	75%
September	28°C	36°C	72%
October	21°C	36°C	72%
November	19°C	34°C	70%
December	12°C	27°C	69%

2. The weather of 4 seasons in Halong Bay 

To decide when to visit Halong Bay, you should know about the weather of 4 seasons to avoid storms and typhoons.

2.1. Spring (March to May): The Season of Renewal

Spring offers pleasant temperatures for outdoor activities like cruising and kayaking. The landscapes begin to look greener and more vibrant. However, be prepared for occasional light rain and higher humidity. 

• Temperature: Gradually warms from the cooler winter months, ranging from an average of 18°C to 36°C. By late May, it starts to feel noticeably warmer, approaching summer temperatures.
• Humidity: Increases significantly after the drier winter, leading to higher humidity levels, often making the air feel damp.
• Rainfall: Experiences a gradual increase in rainfall compared to winter. Light drizzles, known locally as “spring rains” or “crachin,” are common, especially in March and April.
• Sunshine: Sunshine hours increase as the season progresses, though overcast days are still possible, particularly in the early part of spring.

>> Read more:

Halong Bay in March – Weather & Travel Tips 

Halong Bay in April – Weather and best water activities to try 

Halong Bay in May – Weather and Guideline 

2.2. Summer (June to August): Hot and Humid

While the warm waters are ideal for swimming and the landscapes are lush and vibrant, the heat, humidity, and potential for storms make summer a less popular time to visit for some: 

• Temperature: This is the hottest period, with average temperatures ranging from 27°C to 40°C and sometimes even higher.
• Humidity: Reaches its peak, often exceeding 70%, making the high temperatures feel even more oppressive.
• Rainfall: Summer is the wettest season, experiencing frequent and sometimes heavy rainfall, including thunderstorms. This is also the typhoon season for the Gulf of Tonkin, so there’s a higher risk of cruise cancellations or itinerary changes.
• Sunshine: Despite the rain, there can still be plenty of sunshine, often interspersed with afternoon showers.

>> Read more:

Halong Bay in June – Weather & Travel Tips 

Halong Bay in July – Weather and best activities

Halong Bay in August – Weather and Guideline (Updated)

2.3. Autumn (Sep to Nov): The Golden Season

Autumn is widely considered the best time to visit Halong Bay Vietnam. The weather is mild, dry, and sunny, perfect for all activities:

• Temperature: Cools down from the summer heat, with average temperatures ranging from 19°C to 36°C. 
• Humidity: Decreases significantly, making the air feel much drier and more pleasant.
• Rainfall: Rainfall decreases considerably in Autumn. September might still see some lingering showers, but October and November are generally drier months with clear blue skies.
• Sunshine: Enjoy abundant sunshine, making for excellent visibility and stunning views of the bay.

>> Read more:

Halong Bay in September – Weather & travel tips for visitors

Halong Bay in October – Weather and best activities to try 

Halong Bay in November – Weather and Guideline for first-time travelers

2.4. Winter (December to February): Cool and Dry

Winter offers cool and dry conditions, making it a pleasant escape from hotter climates. However, the cooler temperatures might make swimming less appealing for some:

• Temperature: This is the coolest period, with average temperatures ranging from 12°C to 27°C. Temperatures can occasionally drop lower, especially during cold spells originating from the north.
• Humidity: Remains relatively low compared to other seasons, making the cooler temperatures feel more comfortable.
• Rainfall: Winter is the driest season, with minimal rainfall and many sunny days.
• Sunshine: Might not feel as strong due to the cooler temperatures. Fog can occasionally occur, particularly in the early mornings, which can create a unique, ethereal atmosphere but might limit visibility.

>> Read more:

Halong Bay in December – Weather & Travel tips for visitors

Halong Bay in February – Weather & Best activities to try

3. When to visit Halong Bay? Best time to travel 

This part will help you decide when to visit Halong Bay. Determining the best time to visit Halong Bay Vietnam hinges on balancing favorable weather with manageable crowds and prices. 

Generally, the shoulder seasons of spring (March to May) and autumn (September to November) are highly recommended. These months provide a sweet spot for enjoying outdoor activities like kayaking, swimming, and exploring the islands without the peak season rush. 

However, the warm waters in summer are ideal for swimming, and the lush scenery can be captivating, often with fewer crowds (excluding local holidays). 

Winter (December to February) brings cooler, drier weather, which can be a welcome escape for those from hotter climates. This period coincides with peak tourist season due to international holidays, so expect larger crowds and potentially higher prices. 

For budget-conscious travelers, May to September is the ideal time to score Halong Bay cruise deals. This low season often sees discounts of 10 – 20%. The best Halong Bay travel tips are checking last-minute deals on website halongbay.tours and staying updated on weather forecasts.

Ultimately, the “best” time to visit Halong Bay depends on individual preferences for weather, budget, and tolerance for crowds.

4. Pros and Cons of tourist seasons in Halong Bay 

When to visit Halong Bay also depends on the pros and cons of tourist seasons, which help you to avoid overcrowding. 

4.1. The Peak Seasons

December – January:

• Pros: Pleasant, cooler temperatures, often sunny skies. December to January is the time for Christmas and New Year breaks.
• Cons: Highest tourist crowds, potentially higher prices for cruises and accommodation, booking in advance is essential.

October – November & February – April:

• Pros: Generally mild and comfortable weather, good for outdoor activities (cruising, kayaking). Beautiful scenery.
• Cons: Still relatively busy, especially during holidays and school breaks. Prices are higher (about 10 – 20%) than the low season.

4.2. The Shoulder Seasons

March – May (Spring):

• Pros: Warming temperatures, blooming landscapes, fewer crowds than peak season (especially early spring).
• Cons: Occasional drizzle or fog (can add to the mystical atmosphere but might affect visibility). 

September – October (Autumn):

• Pros: Pleasant temperatures, clear skies, lower humidity, fewer crowds than peak season. Considered by many travelers as an ideal time.
• Cons: Possibility of early typhoons (though less frequent than summer).

4.3. The Low Season

June – August (Summer):

• Pros: Lush green landscapes, warmer waters for swimming, potential for lower prices and fewer crowds.
• Cons: Hot and humid weather, higher chance of heavy rain, thunderstorms, and typhoons which can lead to cruise cancellations or itinerary changes.

5. How long to spend in Halong Bay? 

Keys to take away: 

• Visitors with limited time: Opt for a day trip to get a brief overview.
• Most recommended: Choose a 2 days 1 night cruise for a balanced and fulfilling experience.
• Deeper exploration: Consider a 3 days 2 nights cruise for a more comprehensive and relaxed trip, potentially visiting less touristy areas.

The ideal duration to spend in Halong Bay depends on your available time, budget, and how deeply you wish to immerse yourself in its beauty. Here some common trip lengths:

Cruise Day Trip (6-8 hours on the bay)

• The total trip from Hanoi can be around 12-14 hours including travel time
• Budget: 40 – 60 USD/person

This is suitable for travelers with very limited time. Cruise day trips typically involve a scenic cruise through a portion of the bay, visiting one or two key attractions like a cave (e.g., Sung Sot Cave) and perhaps Titop Island for panoramic views. 

While you’ll get a glimpse of Ha Long’s stunning landscapes, it can feel rushed, and you’ll miss the experience of sunrise or sunset over the bay. 

Suggested best day cruises in Ha Long:

2 Days 1 Night Cruise

This is the most popular option and often considered the sweet spot for experiencing Halong Bay. A 2-day, 1-night cruise allows you to delve deeper into the bay, visit more attractions (like Luon Cave, Dark and Bright Cave, or a floating village), and enjoy activities such as kayaking, swimming, and often a cooking class or squid fishing in the evening. 

Spending a night on a boat provides the magical experience of witnessing both sunset and sunrise over the limestone karsts. 

Suggested best 2 Days 1 Night Cruise in Halong Bay:

3 Days 2 Nights Cruise 

For those seeking a more relaxed and comprehensive exploration of Ha Long Bay (or venturing into the less crowded Lan Ha Bay or Bai Tu Long Bay), a 3-day, 2-night cruise is highly recommended.

This extended duration allows for more in-depth exploration, more opportunities for activities, and a less hurried pace. You might visit remote lagoons, secluded beaches, and traditional fishing communities, offering a richer cultural experience.

Suggested best 3 Days 2 Night Cruise in Halong Bay:

6. What to do when your Halong Bay tour is canceled?

Cancellations are mainly due to severe weather such as typhoons, storms, monsoons, or heavy fog. The Halong Bay Management Board usually decides on tour or cruise cancellations before 3:00 PM on the day of departure.

So, what to do when your Halong Bay cruise tour is canceled? Let’s see some scenario:

6.1. Before arriving in Halong Bay

If your trip is cancelled before you leave for Halong Bay, immediately reach out to your travel agent for guidance and alternative arrangements. While waiting for your next opportunity, consider a brief tour of Hanoi to make the most of your time here.

6.2. After arriving in Halong Bay

If your cruise is cancelled after you’ve arrived in Ha Long Bay, you have a few choices: return to Hanoi (the cruise company will handle your transport), wait until the next day for a possible departure, or understand the cancellation terms from your cruise provider. Keep in mind that if you decide to wait, the next cruise could be delayed by several days due to the ongoing bad weather.

6.3. During the cruise trip

If your cruise is cancelled mid-trip, your safety is the primary concern. The cruise operator will make necessary arrangements based on the weather conditions to ensure your well-being. 

For example, if the cancellation occurs on your first day and Tuesday’s forecast looks promising, your trip might be shortened. In this case, you’d likely spend Monday night at a mainland hotel and resume your cruise on Tuesday. However, if the weather isn’t expected to improve, consider asking the cruise company about a transfer back to Hanoi or their refund procedures.

In conclusion, when to visit Halong Bay depends on your preferences regarding weather, crowds, and prices. Considering all factors, April, May, September, and October are often highlighted as the most ideal months to visit Halong Bay for a balanced experience of good weather and manageable crowds. Have a happy trip!

7. FAQ 

Get the best cruise tours deals with us! 

Ha Long Bay Cheers Tours is a trustworthy booking cruises website specializing in Halong Bay Vietnam. As you visit our website, get ready for a virtual adventure through hundreds of luxury cruises, such as: 

• Halong Bay Cruise Tours
• Lan Ha Bay Cruise Tours
• Bai Tu Long Cruise Tours

We offer the BEST cruise deals with many special gifts, such as:

• Free car service to the airport
• High speed sim card internet,
• Well-designed T-shirts. Furthermore

Our qualified staff, who have worked with travellers from different nationalities, cultures, ages, genders and interests will give you recommendations so that you can make the best of your holiday. 

Contact us 24/7 via Whatsapp +84 926782368 or chat directly on https://halongbay.tours/ and have all your questions answered!