We enjoyed a delicious lunch while admiring the spectacular views of Ha Long Bay from the cruise ship. The subsequent cave exploration, bamboo boat ride, and sunset party were also very enjoyable. However, it was a little disappointing to see how much the tranquil scenery of Ha Long Bay had changed since my visit 20 years ago.
With new tourist facilities, excellent service, and abundant meals, the scenery of Ha Long Bay is breathtaking, making for a comfortable and pleasant trip.
Anonymous User
Couple
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 21.2–26.6°C, 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 28.9–29.0°C, 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 27.4–23.8°C, 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 18.1–17.4°C, 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. 24°C / Annual rainfall: approx. 1920 mm / Summer humidity: 75%–85% / Rainiest month: September
Ha Long Bay monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
17.4°C
49.7
February
17.6°C
57
March
21.2°C
32.3
April
24.4°C
55
May
26.6°C
167
June
28.9°C
295.7
July
29°C
286.3
August
28.4°C
393.7
September
27.4°C
460.3
October
25.6°C
99.7
November
23.8°C
17.3
December
18.1°C
6.7
Ha Long Bay weather for the next seven days
5/6
Wednesday
Patchy rain nearby
28.1°C/22.9°C
5/7
Thursday
Patchy rain nearby
29°C/24.3°C
5/8
Friday
Patchy rain nearby
28.6°C/23.9°C
5/9
Saturday
Patchy rain nearby
24°C/21.8°C
5/10
Sunday
Patchy rain nearby
24.9°C/21.3°C
5/11
Monday
Partly Cloudy
28°C/21.7°C
5/12
Tuesday
Partly Cloudy
28.8°C/23.1°C
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