Halong Bay Weather in October: Best Travel Tips

October offers perfect conditions to explore Halong Bay with its cooler temperatures, clear skies, and calm seas.

The Halong Bay weather in October creates an inviting atmosphere for kayaking through lagoons, relaxing on secluded beaches, and embarking on peaceful overnight cruises.

Whether hiking Bai Tho Mountain for a stunning sunrise or visiting floating villages and pearl farms, October provides the ideal blend of adventure and serenity to discover Halong Bay’s natural and cultural treasures.

October Weather Chart

🔴 : Good Weather

🌩: Low Chance Of Storm

👤: Crowded

$: Higher Cost

Average Temperature:

• Highest: 28°C (82.4°F)
• Lowest: 20°C (68°F)
• The Halong Bay weather in October ushers in the beginning of autumn, offering cooler temperatures, less rainfall, and refreshing breezes. Average daytime temperatures range between 23°C and 28°C, with evenings dropping to a comfortable 20°C to 22°C.

Humidity: 72%

Humidity levels decrease compared to the summer months, creating more comfortable conditions for outdoor activities. The clear skies and crisp air make October one of the best times to enjoy Halong Bay’s natural beauty.

Rainfall: 200 mm per month 

Rainfall is moderate, averaging 100-150mm across 8-10 rainy days, but the showers are typically brief and scattered. Humidity levels decrease compared to the summer months, creating more comfortable conditions for outdoor activities. The clear skies and crisp air make October one of the best times to enjoy Halong Bay’s natural beauty.

Average hours of sunshine per day: 6-7 hours

Chance of Storms: Low Chance Of Storm 

With calm seas and pleasant weather, the Halong Bay weather in October is perfect for activities like kayaking, cruising, and exploring the bay’s iconic limestone formations.

Pros:

• Beginning of the international peak season: October kicks off the peak season for international travelers in Halong Bay. The weather is pleasantly cool, skies are generally clear, and rainfall significantly decreases – making this a prime time for cruises, island hopping, and outdoor excursions.
• Perfect balance of climate and scenery: With the transition into autumn, Halong Bay showcases vibrant natural beauty. The sea is calm, the humidity drops, and the gentle breeze makes sightseeing much more enjoyable. It’s also one of the most photogenic times of the year.

• Active but not overcrowded: While October is busier than the previous months, it still hasn’t reached the peak crowds of December or January. Travelers can enjoy a lively atmosphere without feeling overwhelmed. Boutique cruises and lesser-known destinations like Lan Ha Bay remain excellent options for a more tranquil experience.
  
• More stable travel conditions: The likelihood of storms and cruise cancellations decreases compared to September. With more predictable weather, your travel plans are more likely to go smoothly.

Cons:

• Rising demand, rising prices: With more international tourists arriving, prices for hotels and cruises begin to climb. High-quality or luxury options may get booked out quickly. Planning and booking early is essential if you want better rates and more choice.
• Some popular spots may get busier: Attractions like Sung Sot Cave or Titop Island may see larger tour groups. While it’s not peak-peak season yet, October does mark the return of steady tourism traffic.
  

No major national holidays

October does not include official Vietnamese public holidays, which means fewer domestic tourists and more stable pricing across weekdays.

Charming local experiences

Though there are no large-scale festivals, visitors might encounter local cultural or spiritual gatherings, particularly around temples or fishing villages. These small, authentic moments often give deeper insight into life around Halong Bay.

Dressing for the Halong Bay weather in October ensures you can enjoy your trip without discomfort, regardless of the conditions.

For daytime

• Lightweight clothing such as cotton or linen to stay cool during sunny afternoons.
• T-shirts, tank tops, and shorts for exploring beaches and cruising.
• Sunglasses, sunscreen, and a sun hat to protect against UV rays during outdoor activities.

For evenings

• A light sweater, cardigan, or jacket for the cooler evenings, especially when out on the water.
• Long trousers or casual pants for warmth and comfort during nighttime excursions.
• Comfortable closed-toe shoes for evening strolls or walks on cruise decks.

For water activities

• Quick-drying swimwear for kayaking and snorkeling adventures.
• Waterproof sandals or sturdy water shoes for boarding boats and navigating wet areas.
• A lightweight rain jacket or poncho to prepare for the occasional showers during October’s mild rainy days.

The Halong Bay weather in October offers cool temperatures, clear skies, and calm seas, making it one of the best times to explore this UNESCO World Heritage Site.

With reduced rain and inviting breezes, October provides ideal conditions for activities like kayaking through lagoons, relaxing on secluded beaches, and enjoying overnight cruises.