Ha Long Bay in May review: Kicking off a vibrant summer in the heritage bay

1 Is Ha Long in May worth visiting?

If you are planning a trip to the heritage bay, let me quickly answer your first questions about Ha Long in May.

Should you go? Definitely yes. This is the start of an exciting and vibrant summer season.

How is the weather? The weather turns hot and humid. Strong sunshine appears, but the sky is crystal clear and the sea is emerald blue.

What is special? This is the best time to immerse yourself in the refreshing cool water or admire panoramic views of the bay from above aboard a seaplane.

2 Weather conditions in Ha Long in May

2.1 Detailed Ha Long weather in May

Summer in the bay usually begins in May and lasts through October. When arriving in Ha Long in May, you will clearly feel the change in temperature. The average temperature during this period is around 28.6°C, sometimes peaking at 38°C. This is a period of intense sunshine lasting throughout the day.

A distinct feature of Ha Long in May is that humidity begins to rise significantly. This also marks the official start of the rainy season. In fact, about 80 to 85% of the year's total rainfall is concentrated between May and October. However, this does not diminish the bay's allure. Crystal-clear skies and turquoise waters are the great rewards for those who don't mind the sunshine. Remember to bring sunscreen to protect your skin.

2.2 Comparing Ha Long in May with other seasons

Each season in Ha Long presents a completely different look. If you are still hesitant, let's do a quick comparison.

Unlike the radiant glow of Ha Long in May, winter from November to February of the following year carries a mysterious charm. The temperature then is only around 16.7°C, sometimes dipping as low as 5°C. Dense fog obscures visibility and swimming is virtually impossible. If May is for lively activities, winter is ideal for peaceful relaxation and quiet moments.

Spring from February to April offers drier and cooler weather, with temperatures ranging from 18 to 23°C. However, March often brings more rain and humidity starts to rise. Compared to the sultry warmth of May, spring is comfortable for outdoor excursions, but the sea water is not quite warm enough for swimming freely like in summer.

Meanwhile, autumn only lasts around October and November. This is regarded as the most pleasant time of the year due to little rainfall, warm sunshine, and mild temperatures between 13 and 21°C. Nevertheless, if you love thrilling water activities, Ha Long in May still holds the upper hand thanks to long daylight hours and brilliant sunshine.

3 Unmissable experiences

3.1 Cruising amidst the heritage bay

I opted for a cruise to admire Fighting Cocks Islet and Stone Dog Islet. The feeling of lounging on the deck, catching the refreshing May sea breeze, is truly indescribable. You must definitely explore Sung Sot Cave and Thien Cung Cave. The thousand-year-old stalactites will leave you in awe. Don't forget kayaking either. Paddling with your own hands through emerald green waters is the best way to feel the grandeur of nature.

3.2 Cooling off at Bai Chay

Bai Chay in May is not overly crowded yet. The powdery white sand and clear blue water are wonderfully inviting. I loved the feeling of lounging lazily under coconut palms, watching the crimson sunset melt across the horizon. This is the most romantic moment of the day.

3.3 Modern and nostalgic photo spots

Quang Ninh Museum is my favorite spot thanks to its pitch-black architecture resembling a giant lump of coal, which looks exceptionally "cool" in photos. Right beside it is the library offering a tranquil ambiance. If you want a touch of nostalgia, visit Bai Chay Old Town. The rows of buildings with Asian-European architecture will give you photos that look just like being abroad.

3.4 Entertainment at Sun World

If you are traveling with a group of friends or family, Sun World is the top choice. I spent the entire afternoon at Dragon Park trying out thrilling rides. Later, I rode the Queen Cable Car up to the top of Ba Deo to take in the complete view of Ha Long Bay from the Sun Wheel.

4 Suggested 2-day 1-night itinerary

Day 1: Hanoi - Ha Long Bay

Noon: Arrive at the port, board the cruise, enjoy lunch, and tour the bay.

Afternoon: Explore Sung Sot Cave, kayak at Luon Cave, and swim at Titop Island beach.

Evening: Return to the hotel, have dinner, and stroll along the night streets or Bai Chay Night Market.

Day 2: Sun World - Quang Ninh Museum - Hanoi

Morning: Have a buffet breakfast, have fun at Sun World, or check in at Quang Ninh Museum with its unique black coal architecture.

Noon: Savor delicious seafood and board the vehicle to return to Hanoi.

5 Practical tips for the trip

5.1 Estimated travel costs

Visiting Ha Long in May offers quite reasonable prices since it hasn't entered the peak season of June and July.

Transportation: Limousine bus from Hanoi costs around 250,000 VND to 300,000 VND.

Accommodation: 3-4 star hotels range from 800,000 VND to 1,500,000 VND per night.

Dining: Around 500,000 VND per day for seafood and local specialties.

Sightseeing: Tickets for bay sightseeing and amusement parks range from approximately 500,000 VND to 700,000 VND.

5.2 What to eat to savor the full taste of the sea?

Visiting Ha Long without tasting squid patties is like having never been here at all. Freshly hand-pounded squid patties, piping hot and paired with warm steamed rice rolls, are an absolute delicacy. I also love mantis shrimp noodles with their naturally sweet, delicate broth. If you enjoy unique flavors, try grilled mud clams with scallion oil or "gat gu" nodding rice cake dipped in braised pork fish sauce.

5.3 Practical tips and comparisons

Compared to the misty early months of the year, Ha Long in May is significantly clearer and brighter. Compared to the scorching summer heat of June and July, May is far more pleasant and less crowded.

My recommendations for your trip are as follows:

• Bring sunscreen and a wide-brimmed hat. Although the May sunshine is relatively mild, it is still enough to tan your skin.
• It is advisable to book services 1 week in advance to get the best rates.
• If you are prone to seasickness, prepare motion sickness medication before boarding the bay tour boat.

6 Frequently asked questions (FAQ)

6.1 Is May the rainiest month in Ha Long?

Not yet. Although the rainy season starts in May, peak rainfall usually falls in July and August. You can still enjoy plenty of gorgeous sunny days throughout May.

6.2 Is a temperature of 38°C too hot for sightseeing?

It can be uncomfortable if you stay outdoors for extended periods. However, incoming sea breezes help temper the air substantially. You should prioritize water sports or cave visits during peak sunny hours.

6.3 Is Ha Long affected by monsoons?

Yes. May is when the Southwest monsoon begins to blow, bringing humidity and the heat characteristic of northern summers.

6.4 What should you wear when visiting Ha Long at this time?

Choose lightweight, breathable, and sweat-wicking clothing. Don't forget swimwear, sunglasses, and a wide-brimmed hat to confidently snap photos under the summer sun.

Compared to January–March, which often see fog and chilly breezes, Ha Long in May is far clearer and more radiant. Don't forget to stop by MIA.vn to pick up a reliable companion—a quality suitcase—for your upcoming Ha Long trip this May!