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Ha Long Bay

Ha Long Bay 1
Travel Info
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Travel Info

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Ha Long Bay Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Ha Long Bay year round climate

  • Spring (March–May): Average 70–79°F, mild and comfortable climate with gradually increasing rainfall. Common activities: Exploring Ha Long Bay, boat trips, cave visits. Recommended clothing: Light jacket, long-sleeved shirt, comfortable trousers or skirt.
  • Summer (June–August): Average 84–84°F, hot and humid with abundant rainfall. Common activities: Swimming, water sports, relaxing by the sea. Recommended clothing: Light and breathable clothing, short sleeves, shorts, sun protection clothing, swimwear.
  • Autumn (September–November): Average 81–74°F, comfortable and pleasant climate, with the most rainfall in September, gradually decreasing thereafter. Common activities: Exploring Ha Long Bay, photography, outdoor activities. Recommended clothing: Long-sleeved shirt, light jacket, comfortable trousers or skirt.
  • Winter (December–February): Average 64–63°F, mild and cool with little rainfall. Common activities: Exploring Ha Long Bay, sightseeing, enjoying the peaceful atmosphere. Recommended clothing: Light jacket, long-sleeved shirt, comfortable trousers or skirt.

Ha Long Bay climatological average

Annual average temperature: approx. 75.2°F / Annual rainfall: approx. 1920 mm / Summer humidity: 75%–85% / Rainiest month: September

Ha Long Bay monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
63.3°F
49.7
February
63.7°F
57
March
70.2°F
32.3
April
75.9°F
55
May
79.9°F
167
June
84°F
295.7
July
84.2°F
286.3
August
83.1°F
393.7
September
81.3°F
460.3
October
78.1°F
99.7
November
74.8°F
17.3
December
64.6°F
6.7

Ha Long Bay weather for the next seven days

7/2
Thursday
Patchy rain nearby
88.6°F/79°F
7/3
Friday
Sunny
88.6°F/78.8°F
7/4
Saturday
Patchy rain nearby
89.1°F/78.4°F
7/5
Sunday
Light rain shower
86.8°F/78.2°F
7/6
Monday
Light rain shower
87.8°F/78.7°F
7/7
Tuesday
Patchy rain nearby
88.4°F/78.6°F
7/8
Wednesday
Patchy rain nearby
93.3°F/80.3°F

Ha Long Bay Frequently Asked Questions and Useful Information for Travel

What is the best way to explore Ha Long Bay?

For a balance of immersion and exploration, a 2-day, 1-night cruise is often recommended. Many cruises venture into neighboring Lan Ha or Bai Tu Long Bay to avoid crowds. Expect activities such as visiting caves like Sung Sot Cave, kayaking, swimming at secluded beaches, and enjoying sunset views. Look for cruises that include excursions to nearby bays for a more serene experience.

What is the best month to visit Ha Long Bay?

The best time for a Ha Long Bay tour is in spring and autumn, specifically in March, April, September, and October. During these months, the weather is often delightful with mild temperatures, clear skies, and high activity levels.

How do I travel to Ha Long Bay?

You can fly to Van Don Airport (Quang Ninh) which is near Ha Long Bay. Alternatively, many travelers fly into Hanoi and then take a shuttle bus directly to Ha Long Bay, which is a common and convenient option.

Is Ha Long Bay worth the trip?

Absolutely. Ha Long Bay is an incredible natural wonder and a classic Vietnam experience. An overnight cruise is highly recommended to fully appreciate its beauty and unique karst landscape. It's an unforgettable destination that adds significant value to any Vietnam itinerary.

What are the must-do activities in Ha Long Bay?

Key activities in Ha Long Bay include cruising through the limestone karsts, exploring magnificent caves such as Sung Sot Cave, kayaking or sampan rowing in the emerald waters, swimming at pristine beaches, and enjoying breathtaking sunset views over the bay. Many cruises also offer cooking classes and Tai Chi sessions.