If you’re dreaming of cool breezes, quiet waters, and a calm winter escape far from the busy cities, Bai Tu Long Bay is the perfect choice. The bay becomes softer and more tranquil in December, creating an ideal setting for rest, reflection, and gentle holiday vibes.
Welcome aboard Viet Sail Cruise, where you can enjoy a refreshing winter journey surrounded by misty limestone mountains, smooth emerald waters, and the soothing rhythm of the sea. Before you sail, here is the updated December 2025 weather guide to help you prepare for your most relaxing winter getaway.
Bai Tu Long Bay is located in Quang Ninh province, northeast of Ha Long Bay. The bay stretches towards the Co To archipelago and includes around 600 islands, many of which are still uninhabited.
Most cruises heading to Bai Tu Long depart from Hon Gai Port or Ha Long International Port (Sun Port), a quieter port than the busy Tuan Chau Port that Ha Long cruises frequent. This difference creates a more private and intimate atmosphere right from the start.
December is one of the most peaceful times to visit Bai Tu Long Bay. The cool air, almost no rain and the quiet atmosphere create the perfect setting for a relaxing trip on the water. Here is an updated December 2025 weather guide and what you can expect when cruising with Viet Sail.
December brings a cool but comfortable climate. The average temperature stays between 12°C and 22°C. Days are mild, and nights can feel a bit chilly. Because of this, guests should bring a light jacket to stay warm on the sundeck or during early-morning activities.
One of the biggest advantages of December is the low chance of rain. The weather is mostly dry, with little prolonged rain. Therefore, the weather will be drier than in the summer, making Bai Tu Long Bay feel fresh and clean.. Visitors when traveling in this season will not need to worry about rain or sudden storms like in the summer.
One important factor to consider when planning a cruise is the wind and sea conditions. In December, Bai Tu Long Bay is especially calm, with gentle and steady northeast winds. This makes for a smooth and comfortable journey, perfect for first-time cruisers or those prone to seasickness. The cool air combined with tranquil waters gives the bay a serene “winter vibe.” However, the water temperature is quite cold, which may limit swimming activities for visitors.
Winter on the Bai Tu Long Bay often sees a thin layer of early morning mist covering the landscape, making this destination extremely poetic. Many guests enjoy taking photos during this time because the light is soft and the scenery feels dreamy. This quiet winter setting is also perfect for light onboard activities such as the cooking class on Viet Sail Cruise or simply relaxing in the cabin, enjoying the scenery through the window on the cruise.
The cool and dry weather of December is perfect for relaxing experiences on Viet Sail Cruise. Guests can enjoy:
– Sunbathing or quiet mid-day chilling on the sundeck
– A warm and interactive cooking class in the late afternoon
– Sunset party with a gentle sea breeze
– Squid fishing
Because the weather is stable, most activities run smoothly without interruption.
Vietnam’s winter is quite dry and cold, so to ensure a comfortable experience, remember to bring the following items:
December is pleasant, so there is no need for heavy winter clothing.
If you want to avoid crowded travel seasons and enjoy cool, refreshing weather, December 2025 is an excellent time to visit Bai Tu Long Bay. With dry days, calm waters, and a peaceful winter atmosphere, every moment on Viet Sail Cruise becomes comfortable and memorable.
If you need help choosing the right cabin or want to explore our 2D1N and 3D2N itineraries, feel free to contact us. Viet Sail team is ready to assist you with the latest and most updated information.
