October is an ideal time to explore Halong Bay, as the weather is notably pleasant – not too hot and not too cold. The article below offers an in-depth look into Halong Bay weather in October, along with valuable tips and advice to enhance your travel experience during this period.

Overview of Ha Long Bay weather in October

Overview of Ha Long Bay weather in October
Overview of Ha Long Bay weather in October


October in Halong Bay brings a pleasant shift from the intense heat of summer. The average temperature hovers around 27°C, creating a warm yet comfortable atmosphere. This is a time when the scorching heat subsides, replaced by a gentle cool breeze that enhances the cruising experience in the bay.


A notable decrease in rainfall marks October. The transition from September’s 190mm of rain spread over 14 days to October’s milder rainfall, ranging between 50-58mm across 10-12 days, is quite apparent. This reduction in precipitation contributes to the overall pleasant weather of the month.


The humidity level in October stands at around 70%. This, combined with the mild temperatures and refreshing breeze, results in an agreeable and comfortable climate. The balance of these elements makes for an ideal setting to enjoy the natural beauty of Halong Bay.


October is a month blessed with ample daylight. The bay experiences close to 12 hours of daylight stretching from sunrise to sunset. Out of these, approximately 7 hours constitute effective sunlight, allowing ample time for visitors to indulge in outdoor activities and soak in the picturesque views.

>>> Read more: Flight Time to Ha Long Bay: Navigating Halong Bay Weather for the Best Travel Months

Advantages and disadvantages of visiting Halong Bay at this time


Traveling in October is a delight, thanks to the warm and comfortable weather that typifies this month. A noticeable shift from the earlier months, October in Halong Bay is characterized by less humidity and rainfall. This drier and more pleasant climate opens up a plethora of opportunities for diverse and enjoyable activities, making it an ideal time for exploration and adventure.


As the month of October draws to a close, there’s a slight possibility of encountering the Northeast monsoon. However, it’s important to note that these Northeast monsoons are considerably milder and less wet compared to the Southwest monsoons experienced during the rainy seasons. Additionally, as October falls within the high tourist season, popular attractions may experience overcrowding, and there may be an increase in prices for various services and accommodations. This is a factor to consider when planning your visit.

Best things to do in HaLong Bay in October

Overnight Cruise Adventures in October

October is the perfect time to set sail on a Halong Bay cruise, exploring its enchanting islands, beaches, caves and floating villages. The cool, pleasant atmosphere enhances experiences like morning tai chi on the deck, sunset parties, squid fishing, and photography sessions.

Exploring Floating Villages

Exploring Floating Villages
Exploring Floating Villages

Discover the age-old charm of Halong Bay’s floating fishing villages like Cua Van, Viet Hai and Vung Vieng. October’s dry weather minimizes rain disruptions, offering a great opportunity for kayaking and engaging with the local lifestyle.

Kayaking in Ideal Conditions


With the sea temperature around a comfortable 27°C, kayaking in October is a delight. Clear skies offer unobstructed views of the bay, while cool breezes keep you refreshed.

Swimming in Perfect Weather

The moderate temperatures of October in Halong Bay create ideal conditions for swimming. The calm and pristine beaches invite you to dive in, so remember to pack your swimsuit and sunscreen!

Cycling Through Scenic Routes

For those looking for an active exploration, cycling is highly recommended. Viet Hai Village, with its winding roads and fresh air, is a prime cycling destination in Halong Bay.

Trekking Adventures

For non-cruisers, October’s moderate weather is perfect for trekking. Explore destinations like Cat Ba National Park, Bai Tho Mountain, Yen Tu Mountain and Titop Island. Pack light, breathable clothing, a sun hat and a good pair of sports shoes for a comfortable trekking experience.

October enhances the enjoyment of these activities, making it one of the best times to experience the diverse offerings of Halong Bay.

Essential Travel Tips for a Memorable October Journey in Halong Bay

Booking Tips

  • Day Trips for Budget Travelers: If you’re mindful of expenses but still wish to experience the majestic Halong Bay, consider a day trip. It’s an economical alternative to overnight cruises without sacrificing the beauty of the bay.
  • Cruise Selection for a Luxurious Experience: If your budget allows, opt for a 4-star or higher cruise to enjoy enhanced services and a more luxurious stay. Remember, unlike hotels, you’ll be spending most of your time on the cruise, so comfort is key.
  • Northern Vietnam Tour: Expand your adventure beyond Halong Bay with a tour of Northern Vietnam. We’re here to assist with any arrangements you may need.

Packing Tips

  • Clothing: A light sweater or sweatshirt is perfect for the cooler mornings and evenings.
  • Sun Protection: A hat and sunglasses are essential for outdoor activities. Despite the milder sun, sun cream is crucial to protect against UV rays.
  • Swimwear: Don’t forget your swimsuit to enjoy the inviting emerald waters of Halong Bay.
  • Waterproof Gear: A waterproof bag is a must-have to safeguard your phone or camera during water-related activities.

October marks the start of the peak tourist season in Halong Bay, making it crucial to book your cruise well in advance. Planning ahead not only ensures your spot on a cruise but also opens up opportunities for early booking promotions. For any assistance in securing the best tour options, feel free to reach out to San Travel. Our team is ready to help you with all your booking needs to ensure a seamless and memorable Halong Bay experience.

>>> Read more: Halong Bay Weather in December

FAQs About Halong Bay Weather in October

  1. What are the typical temperatures in Halong Bay during October?
    • October in Halong Bay offers a comfortable climate with temperatures generally ranging between 21.8°C (71.24°F) and 28.0°C (82.4°F). This range makes October one of the most pleasant months for visiting Halong Bay.
  2. Is there high humidity in Halong Bay in October?
    • Yes, October experiences a fair amount of humidity in Halong Bay, averaging around 75.1%. However, it rarely dips below 52.0%.
  3. How frequent is rainfall in Halong Bay during October?
    • Rainfall is relatively minimal in October, with the region seeing about 8.3 rainy days and an average precipitation of approximately 77.8mm (3.06 inches).
  4. What is the average daylight duration in Halong Bay in October?
    • The average length of the day in October in Halong Bay is about 11.7 hours.
  5. How many hours of sunlight does Halong Bay get in October?
    • In October, Halong Bay enjoys an average of 10.0 hours of sunshine per day.