» Halong weather, Halong Bay Weather, Halong Bay Climate

Halong weather, Halong Bay Weather, Halong Bay Climate


1. Halong Bay Weather information

Quang Ninh’s climate is symbolic of the climate of North Vietnam; featuring all four seasons. In summer, it's hot, humid and rainy, while monsoons flourish. In winter, it's cold, dry, and sees little rainfall.

The average heat radiating during a year is 115.4 Kcal/sq. cm. The average temperature is over 21oC, while the average humidity is 84%. Annual rainfall totals between 1,700 and 2,400 mm, and there can be between 90 to 170 rainy days in a year. These are mainly concentrated in the summer (more than 85%), and especially in the months of July and August. In winter, rainfall only reaches between 150 and 400 mm.

In comparison to other provinces in the north, Quang Ninh has been more under the influences of north-eastern monsoons. The wind blows strongly and the temperature drops to between 1 and 3ºC. During a north-eastern monsoon, high mountainous regions such as Bình Liêu and Hải Hà, Ðầm Hà sometimes see the temperature drop below 0ºC.

Storms have a large influence on the province, mainly in June, July and August. The intensity can be extremely strong, especially in island and coastal regions.

Due to differences in terrain, the climate of sub-regions varies. The border area of the Móng Cái District is colder and rainy, with an average temperature of around 22ºC and rainfall reaching 2,751 mm. In the Yên Hưng District, the most southern area, the average temperature is 24ºC and sees an average rainfall of 1,700 mm. The high mountainous region of Hoành Bồ, and Ba Chẽ districts, is victim to 20 days of frost a year, and is subject to little rainfall. In the Bình Liêu District there is heavy rain (2,400 mm) and winter lasts for six months. The offshore island region is not the wettest area, with only 1,700 to 1,800 mm  of rainfall per year, but winter is often accompanied by thick mists.

2. Halong Bay weather in 12 months   

Halong’s climate is humid and tropical. With a hot, humid summer and dry, cold winter; Halong’s  temperature varies from 15ºC to 25ºC. Annual rainfall is between 2000mm and 2200mm. Halong  bay has typical diurnal tide system (tide amplitude ranges from 3.5-4m).

The salinity is from 31 to 34.5MT in dry season and lower in rainy season. It is possible to visit Halong Bay year-round, with the best time to visit from October through April, although during the winter months of December, January and February, the weather can be cool and overcast with low visibility.  During the summer months from May to September, temperatures rise and storms are more likely during the rainy season.

- March  April + May: Temperature: ~ 20°F-22°F; Some day have light rain; Clear with blue sky
- June + July + Aug:  Temperature: ~ 26°F-28°F with strong Sun; Carefully with Typhoon; Some day have trong rain but quick
- Sept + Oct + Nov: Best time to enjoy Halong with cool temperature: ~ 26°F-28°F
- Dec + Jan + Feb: Temperature: 18°F~20°F; Cold with strong wind; Some day is misty and rainy

3. The best time to visit Halong Bay   

The best time of year to visit Halong Bay is during the spring or fall, especially from March to May with constant sunshine. As the bay is situated in the northern part of the country, it can get colder in the fall and winter, and though you won't see extremes such as blizzards, it's still a lousy place to be when it gets cold. This area is one of the most popular destinations for vacations in Vietnam. Though there will be more tourists in the area in the spring and summer, the area is still a good place to go. In some situations, it's actually better that there are more people there. There will be more places to go for food and more entertainment in the area. When the weather is good you can go out in the bay on a junk, or a boat, and take a tour of the area. You can go swimming if you wish and just explore the beauty of the area. You can't do all of that in the fall and winter because it gets too cold. When you visit the area you should pack a swim suit, some shorts and a t-shirt. You should have enough clothes to keep you comfortable.

If you Travel Halong from August to November, there may be infrequent typhoons and your cruise may be cancelled. In that case be sure to contact your agent for alternative solutions and in many cases, choose to stay one or two nights in a hotel on the mainland and the next day you may continue the cruise with sunshine.