Climate and region of Halong Bay
Halong Bay, part of northern Vietnam, shares a similar climate with Hanoi and other nearby destinations but differs from Sapa, which is influenced by altitude. The bay experiences a dry season from November to April, when temperatures are generally cooler and rainfall is lower, and a rainy season from May to October, when humidity rises and downpours are more frequent. Unlike central and southern Vietnam, where the weather remains warm year-round, Halong Bay has distinct seasonal shifts, including cool winters and hot summers. Understanding these seasonal trends helps put March’s weather into perspective.
Weather in Halong Bay in March
March marks the final month of the dry season in Halong Bay, with temperatures gradually increasing to 17°C – 23°C (63°F – 73°F). Rainfall remains relatively low, averaging around 40 mm (1.6 inches), but humidity stays high at around 85%, meaning mist and overcast skies are still common. While March is noticeably warmer than January and February, it is still much cooler than the upcoming summer months. The transition to spring also brings a slight increase in breezy conditions, but the bay remains calm, making it a stable month for cruising.
Although it is still part of the dry season, March can feel slightly more humid, and light drizzles become a bit more frequent toward the end of the month. The skies are often a mix of clouds and occasional sunshine, but prolonged periods of clear blue skies are not guaranteed. As temperatures rise, the bay starts to feel more comfortable for outdoor activities, marking the shift from the cooler winter months toward the warmer spring season. You want to know what to expect in other months? Read our guide about Halong Bay weather per month.
Halong Bay cruise in March, is it worth it?
March is one of the best months for a Halong Bay cruise, as it offers a balance between comfortable temperatures and stable weather. While still part of the dry season, humidity starts to rise slightly, and light drizzles become a little more frequent. However, most days remain dry, and the bay’s calm waters ensure smooth sailing. Temperatures are warming up, making outdoor activities on deck and excursions more pleasant. March is a popular month, attracting more visitors than the quieter winter months, meaning prices for cruises may be slightly higher than in January and February.
Pros of a March cruise
- Mild and comfortable temperatures, making outdoor time enjoyable.
- Stable weather with limited rain, ensuring reliable cruise schedules.
- Smoother transition into spring, with more pleasant conditions than winter.
- Less mist and fog, allowing for clearer views of the bay.
Cons of a March cruise
- Still occasional overcast days, though fewer than in winter.
- Light drizzles possible, but not enough to disrupt cruises.
- Increasing tourist numbers, leading to higher cruise prices.
Cruise Activities in Spring
March marks the beginning of early spring, bringing slightly warmer temperatures and a more inviting atmosphere for outdoor activities. While the sea temperature remains around 20°C (68°F), which is still cool for swimming, it starts to become possible for those who don’t mind colder water. However, most travelers still prefer to enjoy the views from the deck rather than swim.
Kayaking becomes a more attractive option in March, as the air is no longer as cold, and the misty scenery creates a serene and peaceful paddling experience. Beach visits are still not ideal for sunbathing, but walking along the sandy shores of places like Soi Sim Beach or Ti Top Beach can be enjoyable, especially as these areas remain uncrowded.
On land, trekking on Cat Ba Island is a highlight, as the mild temperatures make hiking up to viewpoints much more comfortable than in the humid summer months. Cycling through the rural landscapes of Cat Ba is also a great way to explore the island without the heat slowing you down. Visiting caves remains a reliable activity, as places like Dau Go Cave or Sung Sot Cave provide an interesting contrast to the bay’s open landscapes.
Events and festivals in March
March is generally a quiet month for events in Halong Bay, with no major national or regional celebrations that affect cruise experiences. While festivals such as the Yen Tu Festival and Cua Ong Festival continue in certain parts of Quang Ninh province, they are not part of a typical Halong Bay cruise itinerary. If you want to experience these events, you would need to travel inland to religious sites or temples.
The absence of major holidays in March can actually be a benefit for travelers, as it means fewer crowds and more availability for cruises. Unlike peak travel months around Tet or the summer holidays, March offers a more relaxed experience on the water.
Tips for visiting Halong Bay in March
March is one of the best months to visit Halong Bay, with comfortable weather and minimal rain. To make sure you are well-prepared for your cruise, here are some useful tips.
What to bring
For a smoother experience, you can leave larger luggage at your Hanoi hotel before heading to Halong Bay. Pack these essentials for your overnight cruise:
- Light layers, as temperatures are mild but can be cool in the evenings
- Sunscreen and sunglasses, since sunny days become more frequent
- Comfortable walking shoes, as cruise excursions may include trekking on islands
- A reusable water bottle, to stay hydrated during outdoor activities
- A hat, for sun protection while kayaking or walking on the deck
Cruise availability
March is part of the dry season and is a popular travel month due to the pleasant weather. While it is not as busy as peak summer months or national holidays, it does see an increase in international tourists. Demand for cruises is higher than in winter, so booking at least a few weeks in advance is recommended to secure a good option.
March does not coincide with major Vietnamese holidays, so while it is a high season for international travelers, it does not see large domestic tourism waves. This makes it an excellent balance between great weather and moderate crowds.
Complete Halong Bay travel guide
We’ve covered what you need to know for visiting Halong Bay in March, but there’s still a lot to discover. Whether you’re considering a scenic flight, visiting alternative bays like Bai Tu Long and Lan Ha Bay, exploring caves, or taking a trip to Cat Ba Island, there are plenty of ways to customize your experience. For a full overview of things to do, read our Halong Bay travel guide.
