Halong Bay Weather in March: The Latest Travel Tips

In short

• March is one of the best months for traveling to Halong Bay
• Yen Tu and Cua Ong are remarkable festivals this month
• Swimming this month is still available for people who live in cold countries
• Bai Tu Long Bay is the less-tourist area where you can find true peace in your soul

Key Weather Highlights of Halong Bay in March

March in Halong Bay is marked by unpredictable transitional weather following the chilly Tet period. Travelers may encounter sudden drizzles with a hint of coolness or enjoy warm, radiant sunshine signaling the arrival of spring. This contrast creates a unique charm, making every journey to Halong Bay more exciting and full of memorable experiences.

Halong Bay Weather In March

Average temperature (day & night)

March weather in Halong Bay can vary noticeably, with rising temperatures being the most remarkable feature. The Halong Bay temperature in March averages around 20°C during the day, though it may dip to 18°C or climb to 23°C. While not completely warm, the conditions are generally pleasant for most travelers and ideal for enjoying activities on the bay. Please refer to the most recent weather in Hanoi, and consult the 7-day forecast table below.

March Weather Averages In Halong Bay

Rainfall statistics

In March, Halong Bay occasionally experiences cloudy days, with average rainfall of about 53mm spread over 13 days. Travelers are advised to bring an umbrella or raincoat for convenience. Overall, the mild climate, pleasant temperatures, and moderate rainfall make this month an ideal time to explore Halong Bay while enjoying its magnificent scenery in a more peaceful atmosphere, away from the peak season crowds.

Rainfall Graph (mm)

Humidity levels

March brings pleasant weather for exploring Halong Bay, with humidity around 75%, similar to February but still comfortable for outdoor activities. With fewer crowds and lower humidity, it’s an ideal time to fully enjoy the stunning landscapes, serene beaches, and local attractions, while adventure activities become more enjoyable and comfortable.

Humidity Graph (%)

Air quality and UV index

In March, Halong Bay enjoys relatively clean air, with an AQI between 30 and 50 according to WHO, and PM2.5 levels usually under 10 µg/m³. The UV index averages 6–7, considered “High,” meaning there’s a noticeable risk of sunburn between 10:00 and 16:00, so sun protection is recommended.

Typical weather patterns

In March, Halong Bay experiences mild weather, with average daily temperatures ranging from 18°C to 23°C and humidity around 75%, providing a comfortable atmosphere for visitors. Rainfall is light to moderate, between 33–70 mm, occurring over 8–13 days, mostly in the late afternoon. The bay enjoys about 8 hours of sunshine per day. Gentle winds, averaging 20 km/h, add to the pleasant experience for water-based activities.

Is March the Perfect Month for a Halong Bay Journey?

Yes, March is an ideal time to visit Halong Bay, especially if you want to avoid the scorching summer heat and the peak tourist crowds. The Halong Bay Vietnam weather in March offers:

• Pleasant Weather: Temperatures range from 18–23°C with dry, mild conditions, perfect for outdoor activities like kayaking, hiking on Titop Island, or strolling on the cruise deck to admire the scenery.
• Clear Skies: Bright daylight is ideal for photography, while morning mist adds a magical touch to the bay.
• Fewer Tourists: Compared to the busy summer months, March provides a more peaceful and relaxed experience for travelers seeking nature and quality service.
• Seasonal Cuisine: Enjoy fresh seafood, including shrimp, crab, and hot steamed dishes, perfectly suited to the cool, comfortable climate.

Savor Steamed Shrimps And Crabs Perfect For Cool Climate In March

Not-to-Miss Events & Festivals in Halong in March

There is no national event or remarkable festival during this month after the big traditional Lunar New Year.

However, if you still want to join festivals to know more about Vietnam’s culture, consider these well-known festivals below:

Yen Tu festival

Time:

• 2023: 31st Jan - 28th May
• 2024: 19th Feb - 17th May
• 2025: 07th Feb - 07 May

Beginning from the 10th day of the first lunar month until the end of the third lunar month, the Yen Tu festival is one of the most popular festivals in Northern Vietnam and is held at the base of Yen Tu Mountain.

You can come to Yen Tu to admire the significant natural beauty of this famous attraction, as well as learn about the history and culture of Vietnam in the Ly - Tran dynasty period.

If you are a pilgrim, you should not miss this occasion

Cua Ong festival

Time:

• 2023: 23rd Jan - 18th May
• 2024: 11th Feb - 07th May
• 2025: 30th Jan - 30th April

The Cua Ong festival, which is a national intangible cultural heritage of Vietnam, takes place from the 2nd day of the first lunar month to the 30th day of the third lunar month.

The festival is organized in Cam Pha city, to commemorate Tran Quoc Tang’s contributions to defeating the Mongol army and bringing a peaceful life to the land.

Cua Ong festival is one of the biggest events in Quang Ninh province

Top Things to Do in Halong Bay with March Temperatures

Traveling to Halong Bay in March, you will have great opportunities to join most of the activities from indoors to outdoors.

Cave visiting

Halong Bay, which is located in the Gulf of Tonkin, is well-known for its beauty of thousands of limestone islands and islets. Your trip to Halong won’t be entirely wonderful if you do not visit its mysterious caves.

Visiting caves is a typical activity always included in the itinerary of Halong Bay cruises. You will have a chance to explore both the wet and dry caves, such as Trung Trang cave, Dark & Bright cave, Thien Canh Son cave, etc.

Dark & Bright cave - an ideal place for visitors who love kayaking

Rock climbing

Best for: Nature goers, Adventure seekers

If you are an adventure seeker or a nature goer, adventurous activities in favorable weather conditions in March are calling for you.

Let’s try something challenging like mountain climbing on Titop Island, where you will have a chance to reach the top of the island and admire the panoramic view of all Halong Bay.

Go Rock Climbing In Halong Bay In March

Doing Tai Chi session

Best for: Chill-out and recharge retreaters

Though some people may think that practicing Tai Chi exercises is boring, you should still try this activity, especially if you are a recharge retreater.

Waking up early and joining Tai Chi class on the sundeck not only can strengthen your health, but also refresh your mind by enjoying the fresh air and natural beauty of Halong Bay.

Doing Tai Chi session on the Orchid Trendy Cruise

Most Halong Bay overnight cruises have Tai Chi class in the itinerary, and doing Tai Chi class on a luxurious cruise is a must-try thing you should do when traveling to Halong.

Fishing and squid fishing

Best for: Adventure seekers, families, and food enthusiasts

Night squid fishing is a unique and unmissable experience when cruising Halong Bay. This activity requires patience and focus, offering the thrill of catching fresh squid. If successful, you can even enjoy delicious dishes prepared from your own catch, creating unforgettable memories.

Night Squid Fishing On A Halong Bay Cruise For An Adventurous Experience

Exploring Bo Hon Island

Best for: Nature enthusiasts, adventure seekers, and photography lovers.

Bo Hon Island is a treasure trove for explorers, featuring remarkable caves like the famous Sung Sot Cave. March is an excellent time to visit, as the cooler temperatures make exploring the caves more comfortable. The island is also home to diverse wildlife and offers a peaceful retreat from the bustling tourist spots.

Explore Bo Hon Island In Halong Bay With Its Beautiful Natural Scenery

Relaxing on pristine beaches

Best for: Beach lovers, Leisure travelers

If you are looking to relax and enjoy the sun, Bai Chay Beach in Halong City is an ideal destination in March. With its 500-meter stretch of golden sand, this lively beach offers a variety of water sports and activities, while being close to hotels, restaurants, and entertainment options. For a more peaceful experience, visit during the early mornings or on weekdays to fully enjoy the soft sand, gentle waves, and the vibrant yet relaxed atmosphere of the bay.

Relaxing On The Golden Sands Of Bai Chay Beach In Halong Bay With Clear Skies And Gentle Waves

Seasonal Delicacies to Try in Halong Bay Weather in March

Squid Cake

Ha Long squid cake is a traditional specialty renowned for its hand-pounded squid, which preserves its natural chewiness and gives it a distinctive texture. Originating from Ha Long Bay, Quang Ninh, this dish is commonly enjoyed at feasts and festivals and makes a prized gift.

Suggested Location: Ba Kien Squid Cake - No.1, Block 8, Area 6, Hong Hai Ward, Ha Long City

Price Range: From US $15.16 to US $17.06 per kg

Traditional Ha Long Squid Cake Made From Hand Pounded Squid, A Famous Specialty Of Quang Ninh

Grilled Oysters with Spring Onion

Grilled oysters are a popular Halong Bay specialty. Fresh oysters are topped with garlic and green onions, lightly drizzled with oil, and grilled over charcoal. Their smoky aroma and tender, juicy texture are enhanced with a squeeze of lime, making them perfect with a cold beer. This dish is commonly found at seafood restaurants across the bay.

Suggested Location: Ngoc Son Grilled Oysters with Scallion Oil – 976 Cai Dam (Bai Chay), Ha Long City, Quang Ninh

Price Range: From US $1.52 - US $3.79

Fragrant And Juicy Grilled Oysters With Spring Onion In Halong Bay

Seafood Hotpot

Seafood hotpot is an ideal choice for chilly evenings, featuring rich broth and a variety of fresh seafood such as shrimp, crab, fish, and squid. This dish is perfect for enjoying with friends and family.

Suggested Location:  Bien Bac Ha Long Seafood Restaurant – Group 1, Area 5A, Bai Chay Ward, Ha Long City, Quang Ninh

Price Range: From US $ 11.37 - US $ 18.95 per people

Seafood Hotpot With Shrimp, Crab, And Squid, Delicious And Irresistibly Flavorful

Grilled Ngan or Ngan Porridge (Austriella corrugata)

Halong “sea Ngan” can be enjoyed in two popular ways: grilled for a smoky, rich taste or cooked into a sweet and savory porridge. Both dishes offer a unique flavor distinct from clams and are typically served with chili sauce, lime, and fresh herbs.

Suggested Location: Hien Nhung Seafood – Kiosk 228–230, Ha Long I Market, Ha Long City, Quang Ninh

Price Range: US $17.07 – US $17.10 per kg

Delicious Grilled Ngan With An Appealing, Vibrant Color

Ha Long pearl yogurt

Ha Long pearl yogurt is a famous local dessert, loved for its smooth, creamy texture and refreshing sweetness paired with chewy pearls. It is often served with tempting toppings like dried coconut, banana chips, jelly, pudding, or fresh fruits such as strawberries, kiwi, and mango. Among them, the soft, chewy white pearls are the highlight that makes this treat unforgettable.

Suggested Location: Ha Long Pearl Yogurt – Branch 00 - Unit C107 – 108 – 109, Zone C, Sun Group Walking Street, Bai Chay Ward, Quang Ninh.

Price Range: US $ 0.95 – US $ 1.33 per cup

Ha Long Pearl Yogurt With Creamy Yogurt And Chewy White Pearls

Expert Advice for Visiting Halong Bay in March

• Book your Halong Bay cruise several weeks or months in advance, review the route options (Halong Bay, Lan Ha Bay, Bai Tu Long Bay, Cat Ba), and choose a reasonably priced cruise to secure your cabin and ensure a comfortable experience.
• Check the weather forecast before your trip to pick sunny days and pack appropriately.
• Bring a light jacket, sweater, or cardigan for chilly mornings and evenings.
• Pack a swimsuit for water activities, even if the weather is partly cloudy or there’s light rain.
• Bring a hat, sunscreen, and sunglasses to protect yourself from strong sunlight.
• Wear comfortable shoes suitable for walking, hiking, or exploring outdoor attractions.
• Choose lightweight, breathable clothing such as t-shirts, pants, or shorts for easy movement and avoid bringing bulky garments.

Bring Hat, Sunscreen And Sunglasses To Protect Yourself From Sunlight

Common Questions on Halong Bay’s March Weather

Is March a good time to cruise in Halong Bay?

Yes. March is still within the dry season, making it one of the best times to cruise the bay. The weather is mild, with moderate rainfall and calm seas—perfect for outdoor and water activities.

Is it warm enough to swim in Halong Bay in March?

Absolutely! Sea temperatures are quite pleasant, around 29 °C, making swimming, kayaking, and other water activities highly enjoyable.

Does it rain a lot in Halong Bay in March?

Not really. March sees moderate rainfall—about 33 to 55 mm over approximately 8 to 13 rainy days. Showers are usually light and often occur in the late afternoon.

Are there fewer tourists in Halong Bay during March compared to peak season?

No. March is the beginning of Halong Bay’s high tourist season. While not as crowded as major holidays, it still sees significant visitor numbers. It’s wise to book cruises and accommodations well in advance. 

What kind of activities are best in Halong Bay in March’s weather?

March’s weather is perfect for a wide range of activities: cruising, cave exploring, kayaking, swimming, hiking to viewpoints, and photography. The light mist and mild sun offer both mystical charm and great visibility.

Overall, Halong Bay Vietnam weather in March brings warm temperatures, low humidity, and minimal rainfall - perfect for outdoor activities. Cruise schedules may change due to safety requirements, management decisions, or sudden weather shifts. For more information or travel assistance, contact Best Price Travel for guidance in planning a memorable trip.