Bai Tu Long Bay, a hidden gem, maintains its allure as a peaceful and unspoiled alternative to the bustling Halong Bay. Curious about Bai Tu Long Bay weather? Continue reading to discover the optimal time to plan your getaway to this stunning bay.

Bai Tu Long Bay casts its spell as a tranquil and immaculate retreat, standing in contrast to the energetic Halong Bay. Intrigued by the weather in Bai Tu Long Bay? Keep reading to find out the most favorable period for an excursion to this enchanting bay. As tourism flourishes, the bay’s splendor has recently been unveiled, making it a chosen spot for several overnight sailing experiences. It presents a relaxed variation to Halong Bay. Venture to Bai Tu Long Bay to experience its climate firsthand.

Weather & Temperature Guide for Bai Tu Long Bay

A gorgeous corner of Bai Tu Long Bay
A gorgeous corner of Bai Tu Long Bay

Bai Tu Long Bay weather, with its positioning in Vietnam’s northern territory, showcases a range of seasonal weather patterns across the year. Temperatures generally span from 15 to 25 degrees Celsius and the area receives an average annual rainfall of roughly 2,000 millimeters. Notably, Bai Tu Long Bay experiences two main seasons: a hot, humid summer from May to August, and a cooler winter from November to January, interspersed by spring and fall transition periods.

During spring (February – April), Bai Tu Long Bay weather is notably pleasant, with clear skies and serene sea conditions ideal for water sports and cruising. The visitor count is lower, offering a more intimate encounter with the bay.

The summer season (May – August) marks the height of local travel, as Vietnamese tourists seek respite in cooler or seaside locales, and Bai Tu Long Bay is a popular choice. High temperatures can reach 35 degrees Celsius, suitable for swimming but also accompanied by intense rains and potential thunderstorms, which could affect cruise schedules.

Autumn (September – October) presents the most favorable Bai Tu Long Bay weather, with significantly less rainfall and beautiful sunshine, creating perfect conditions for romantic getaways and various outdoor activities.

In winter (November – January), Bai Tu Long Bay weather becomes the chilliest of the year. Despite low rainfall, dense fog can impede visibility, which might affect your sightseeing plans, especially on cruises.

Taking these conditions into account, spring and autumn are the best times to visit Bai Tu Long Bay for an optimal experience. The region, including Halong Bay and Lan Ha Bay, is welcoming to tourists year-round, but it’s essential to prepare for the weather accordingly and look out for seasonal travel promotions.

Bai Tu Long Bay Weather by Month

Bai Tu Long Bay Weather by Month
Bai Tu Long Bay Weather by Month

March to May: Temperatures hover around 20 °F to 22 °F, expect occasional light rain and days with clear, blue skies.

June to August: Experience warmer weather with temperatures ranging from 26 °F to 28 °F under a powerful sun. Be mindful of typhoons and prepare for sporadic but brief rainfalls.

September to November: This period is the prime time to savor the cooler climes of Halong, with temperatures remaining between 26 °F to 28 °F.

December to February: The cooler months bring temperatures of 18 °F to 20 °F, accompanied by strong winds, and intermittent misty and rainy conditions.

Optimal Seasons for Visiting Bai Tu Long Bay

The climate is a crucial element influencing when visitors decide to journey to Bai Tu Long Bay. This tranquil haven maintains its charm year-round. However, if the specifics of Bai Tu Long Bay weather are your main concern, the transitional seasons of spring and autumn stand out as optimal times. These periods offer mild weather ideal for aquatic activities, minimal rainfall ensuring smooth cruising experiences, and gentle sunshine that enhances the bay’s natural allure. Thus, these milder seasons are often the most favorable for travel. The agreeable conditions allow for the planning of daytime adventures in Bai Tu Long Bay.

these milder seasons are often the most favorable for travel
These milder seasons are often the most favorable for travel

The spring season stretches from February to mid-May. In this window, tourist traffic is lighter, aside from the Vietnamese New Year. Consequently, March and April emerge as ideal months for cruising and immersing in the bay’s pristine splendor. International visitors tend to favor September and October. For those with a passion for hiking, these months are prime for exploring. Bai Tu Long Bay also offers an array of activities during these times, catering to various interests.

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Tips for Visiting Bai Tu Long Bay

  • Given that attractions within Bai Tu Long Bay are spread out, cruises typically only offer overnight stays. Therefore, it’s advisable to allocate at least 2 days and 1 night, or even better, 3 days and 2 nights, to fully appreciate the bay’s beauty.
  • Activities such as trekking and kayaking require good physical fitness and thorough preparation.
  • Don’t miss out on the experiential travel opportunities and make sure to indulge in delicious local seafood like razor clams, jumping snails, and live fish.

In general, this article focuses on providing travelers with an in-depth understanding of the climate, seasons, and related advice regarding the best time to visit Bai Tu Long Bay. While each season has its own unique beauty in Bai Tu Long Bay, spring and autumn are generally considered the ideal times for tourism.

Bai Tu Long Bay is a fantastic destination that cannot be missed on Halong Bay cruises. If you are planning a trip to Halong Bay, please contact us at the hotline 091 297 22 22 or visit our website to receive specific guidance and support from our professional staff. Currently, San Travel offers various Halong Bay tours and attractive Halong Bay combo packages. Don’t miss the opportunity to book now and enjoy a fun and cost-effective trip!


1. What is Bai Tu Long Bay and how is it different from Halong Bay?

  • Bai Tu Long Bay is a serene and less frequented alternative to the bustling Halong Bay in Vietnam’s northern territory. It’s known for its tranquil waters, pristine natural beauty, and fewer tourist crowds.

2. What are the best times of the year to visit Bai Tu Long Bay?

  • The optimal times to visit are during the transitional seasons of spring (February to April) and autumn (September to October), offering mild weather, minimal rainfall, and ideal conditions for outdoor activities.

3. What is the weather like in Bai Tu Long Bay?

  • The bay experiences a hot, humid summer from May to August, and a cooler winter from November to January. Spring and autumn are mild with less rainfall.

4. Are there any specific months to avoid due to weather?

  • Visitors might want to avoid the summer months from June to August due to high temperatures, intense rains, and potential thunderstorms.

5. What activities can I enjoy in Bai Tu Long Bay?

  • Popular activities include cruising, water sports, kayaking, trekking, and enjoying local seafood delicacies.

6. How long should I stay in Bai Tu Long Bay?

  • It’s recommended to stay at least 2 days and 1 night, or preferably 3 days and 2 nights, to fully experience the bay’s offerings.

7. Is Bai Tu Long Bay suitable for family trips?

  • Yes, the bay is suitable for families, offering a variety of activities and experiences for all ages.

8. Do I need to be physically fit to enjoy activities in Bai Tu Long Bay?

  • For activities like trekking and kayaking, a good level of physical fitness is beneficial. However, there are many other activities that don’t require high physical fitness.

9. What kind of accommodation options are available in Bai Tu Long Bay?

  • The bay mainly offers overnight cruise accommodations, providing a unique experience to explore the bay’s beauty.

10. Can I find vegetarian or special dietary food options in Bai Tu Long Bay?

  • Yes, most cruises and local restaurants can cater to special dietary needs, including vegetarian options, with prior notice.