When planning the ideal time for a Halong Bay tour, a gem in Vietnam’s tourism landscape, various aspects come into play. While autumn is generally favored for its agreeable weather, April is a hidden gem worth considering. This month marks the transition from spring to summer and is typically quieter in terms of tourism. Despite being less sought-after, the weather in Halong Bay during April is surprisingly conducive for outdoor adventures and sightseeing. Join us as we delve into the specifics of Halong Bay weather in April with San Travel, uncovering why this month could be your perfect choice for a visit.

Overview of Halong Bay weather in April

Overview of Halong Bay weather in April
Overview of Halong Bay weather in April

April in Halong Bay is characterized by a distinct warmth, a noticeable change from the previous months, greatly influenced by the Halong Bay weather in April. The average temperature hovers around 23°C, with highs reaching up to 28°C and lows around 20°C. The sea temperature also becomes inviting, averaging around 29°C, creating perfect conditions for wearing shorts, flip-flops, and enjoying the warm sunshine and comfortable swimming opportunities.

This month is also one of those with the highest daily sunlight hours, ranking alongside May, June, November, December, and March. The humidity in Halong Bay during April stays around 75%, similar to March. This is relatively comfortable, especially when compared to the higher humidity levels of over 90% that are common in the later summer months.

While rainfall does see a slight increase in April, particularly towards the month’s end, it’s usually not enough to significantly disrupt your plans. With approximately 13 rainy days and a total rainfall of about 53 mm, the Halong Bay weather in April remains pleasant enough to enjoy a range of activities without too many weather-related concerns.

Updated Insights on Visiting Halong Bay in April: Advantages & Considerations


  1. Optimal Weather Conditions: April offers sunny days with warm sea temperatures, ideal for exploring Halong Bay. This stable weather significantly reduces the likelihood of activity disruptions.
  2. Ideal for Water Activities: The warmer air and sea temperatures in April make it a prime time for water sports and snorkeling, providing comfortable conditions for enjoying these activities.
  3. Decreased Tourist Crowds: As April marks the end of the peak tourist season, Halong Bay’s attractions are less crowded, allowing for a more relaxed and personal experience.


  1. Advance Planning Required: Despite being post-peak season, April still attracts a considerable number of tourists. It’s advisable to book tours and accommodations well in advance to avoid inconvenience.
  2. Availability of Services During Holidays: Be aware that some services and shops may close during national holidays in April. It’s important to plan accordingly and check the availability of facilities during your visit.

Featured Events & Festivals

April in Vietnam, particularly in Halong Bay, is a time brimming with cultural richness and festive spirit, highlighted by several traditional festivals and public holidays that offer a deep dive into the nation’s heritage. During this time, Halong Bay weather in April is generally pleasant, providing an ideal backdrop for these events.

At the heart of these celebrations is the Yen Tu Festival, held at the foot of the revered Yen Tu Mountain. Spanning three months, starting from the 10th day of the first lunar month, it’s a time for spiritual reflection and pilgrimage, drawing visitors into the depths of Buddhist traditions.

Yen Tu Festival - Ceremony to pray for a peaceful and good year
Yen Tu Festival – Ceremony to pray for a peaceful and good year

Parallelly, the Cua Ong Festival, commencing on the 2nd day of the first lunar month and continuing until the 30th day of the third lunar month, unfolds with a series of ceremonial activities. Centered around the Cua Ong Temple, this festival is a vibrant showcase of local customs and beliefs.

Cua Ong Temple Festival - The most jubilant festival in Quang Ninh province
Cua Ong Temple Festival – The most jubilant festival in Quang Ninh province

April also marks the Hung Kings Commemoration on the 10th day of the third lunar month. As a national holiday, this day sees widespread celebrations as Vietnamese people honor their founding ancestors. During this time, schools and workplaces are closed, leading to significant crowding at public sites.

Additionally, Reunification Day on the 30th of April is a pivotal moment in Vietnam’s history, celebrating the end of the Vietnam War and the country’s reunification. This day is observed with grandeur, featuring firework shows and cultural events, particularly in major cities, offering an insight into the locals’ traditions and customs.

While these events provide a unique opportunity to experience Vietnamese culture firsthand, they also draw large crowds, impacting travel and accommodation. For those eager to immerse themselves in these cultural festivities, early planning and booking are recommended. Conversely, for travelers seeking a quieter visit, it might be wise to schedule your trip outside these peak times to enjoy HaLong Bay’s serene beauty more intimately.

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Activities to try when coming to Halong Bay in April

April in Halong Bay is an ideal month for active travelers and adventure enthusiasts, offering a range of activities that make the most of the pleasant weather conditions.

Swimming and Kayaking

Exciting experience with kayaking on Ha Long Bay
Exciting experience with kayaking on Ha Long Bay

Besides enjoying swimming, you should also try boating and kayaking in Halong Bay during April, benefiting from the favorable Halong Bay weather in April.

These activities are fantastic ways to intimately experience the splendor of Halong Bay. April’s weather, with its calm seas and gentle breezes, makes for perfect conditions to explore unique locations like Sung Sot Cave and Titov Island.

Allocating 1-2 hours to visit the floating villages will immerse you in an essential part of Halong Bay’s rich cultural tapestry, enhanced by the pleasant weather in April.

However, for those interested in scuba diving, a trip planned between May and November might be more suitable, as the weather conditions during these months are generally better for diving than in April.

Squid fishing

For fishing enthusiasts keen on catching fresh squid, April is an ideal time for this activity in Halong Bay. The weather conditions in April, marking the beginning of the early squid fishing season, make it a suitable month for trying your luck at squid fishing.

Don’t be surprised if you find yourself catching smaller squids during this time, as April is just the start of the season. While the best time to catch larger squids typically falls in the winter months, there’s a unique charm in trying your hand at fishing and savoring freshly caught squid, regardless of their size, during the pleasant April weather in Halong Bay. Isn’t it exciting to experience fishing and enjoy the catch, whether big or small?

Overnight cruise

Cruising is an essential activity in Halong Bay, offering a journey packed with remarkable experiences, both aboard the ship and at various attractions. While there are several cruising options available, such as day cruises, 2-day cruises, and 3-day cruises, opting for a 3-day cruise is highly recommended. This extended duration allows you to thoroughly immerse yourself in the stunning beauty of the bay and partake in a variety of exciting experiences. A 3-day cruise provides ample time to explore the myriad facets of Halong Bay, from its majestic limestone karsts and islands to its serene floating villages, ensuring a comprehensive and memorable exploration of this natural wonder.


Cycling in Halong Bay
Cycling in Halong Bay

The moderate temperatures and humidity levels in April make it an ideal time for cycling activities in Halong Bay. Unlike the sweltering heat of the summer months, which can lead to excessive sweating and discomfort, April offers a more comfortable climate for physical outdoor activities like cycling. This pleasant weather allows you to engage in these adventures without being overwhelmed by the heat, making it a great time to explore the scenic landscapes and cultural sites of Halong Bay on a bike.

Tips for traveling to Halong Bay in April

In April, Halong Bay is generally less crowded compared to the peak tourist season from June to August. However, being a popular tourist destination, you might still encounter some crowds, especially at well-known sites and attractions. Therefore, here are some tips for visiting Halong Bay in April:

  • Appropriate Clothing: Bring clothes suitable for warm and humid weather, such as T-shirts, shorts, and comfortable walking shoes.
  • Sun Protection: Don’t forget to pack sun protection essentials, including sunscreen, sunglasses, and a hat to shield yourself from the sun’s rays.
  • Swimwear and Towels: If you’re planning to engage in water activities like kayaking or swimming, remember to bring swimwear, towels, and a change of clothes.

What are you waiting for? Grab your backpack and bid farewell to spring with a trip to Halong Bay this month – you won’t regret the wonderful experiences awaiting you in this breathtaking location. The beauty of Halong Bay in April, with its comfortable weather and less crowded vistas, is an invitation to explore and create unforgettable memories.

>>> Read more: Flight Time to Ha Long Bay: Navigating Halong Bay Weather for the Best Travel Months