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Halong Weather

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Halong Bay Weather Overview

Halong Bay is one of the most popular tourist attractions in Vietnam with world recognition. Halong Bay belongs to Quang Ninh Province, a Northeast province of Vietnam, making its weather shaped by northern typical climate. Halong has two distinct seasons – hot and moist summer and dry and cold winter. Cold winds often start from November to March, meanwhile, the hotter days often fall between June and September. The rest of the years are transitional months that see the mix of these two patterns.

Although you can travel to Halong Bay all year round, there are some better days to visit the Bay than the other. Normally, the best time to visit the Bay is from March to May and from October to December. However, the weather has now seen changes which make the parameter of what is called “the best time” no longer 100% accurate. That being said, any day can be a good day in Halong Bay.

Month Temp (°F) Temp (°C) Rainfall (mm)
Average Daily Average Daily Average Monthly
Max Min Max Min Max Min
January 68 57 20 14 5 2
February 70 59 21 15 30 12
March 73 64 23 18 70 33
April 81 70 27 21 71 34
May 89 75 32 24 200 150
June 97 76 36 25 180 150
July 97 77 37 26 250 190
August 97 77 36 25 280 195
September 88 75 28 21 240 140
October 82 70 28 21 75 29
November 75 64 24 18 26 8
December 70 59 21 15 45 12


Best time to visit Halong Bay

When is the best time to visit Halong Bay really depends on your own definition of a perfect trip. If you are most concerned about weather, then the periods September – November and March – May are ideal for a trip to Halong Bay. The dry climate and pleasant temperature will enable you to enjoy all activities offered on board while making sightseeing as perfect as it could be.

If you are a budget minded travelers, then schedule your trip between May and September. This is often considered the low season and many cruise ships offer massive sale off on cabin: you can save as much as 40% on a cruise trip compared with other time in a year.  However, the months of July – August often see sporadic hurricanes and storms, which may render cancellation and delay of your trip. In those cases, you can switch around by visiting another destination in the North of Vietnam and visit Halong Bay later. These storms will not last longer than 3-4 days.

If you do not have the option of time, then be rest assured that you will enjoy your trip as much as when you do no in another month or day of the year. The Bay is filled with sunlight and rain usually does not last long. In warmer season you can take advantage of swimming opportunity and in cooler season you will enjoy Halong Bay like no-one else: imagine a steamy BBQ lunch by the caves in one of the most gorgeous natural complex of the world – it’s all about experience.

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⊕ Peak Season

Anytime is a great time to visit Halong Bay but some months receive more visitors than the others. The peak season falls on December and January – the months that coincide with Christmas and New Year break. Other months that also see busy lines of travelers include October, November, February, March and April. During these months, the weather is also most suitable to visit Halong Bay.

⊗ Off Season

The period from May to September is often considered a low season for international travelers in Halong Bay. Besides the glowing sun – which makes it perfect for water based activities, the uncrowded beach and various cruise promotions are all attractive reasons for you to plan your holiday around this time of the year.


Travel tips for Halong Bay in October

The weather in October is quite nice to enjoy a cruise trip in Halong Bay. Make sure that you visited well-known attractions of the Bay such as Tuan Chau Island, Co To Island, Surprising Cave, Vung Vieng Floating Fishing Village, Luon Cave, etc. Besides, do not forget to take part in water sport in one of tranquil beaches in Halong Bay (kayaking, swimming, boat rowing, scuba diving).

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