Halong Bay in July weather hot or cool?

In July, the weather in Halong Bay is generally hot and humid, typical of summer in Northern Vietnam. You can expect average temperatures ranging from 26°C to 32°C, but it can sometimes feel even hotter due to the high humidity, which averages around 75 - 80%. While there are often sunny days with around 7 - 8 hours of sunshine, July also falls within the rainy season, with an average of 12 - 15 rainy days and significant rainfall.

Should I go on a Halong Bay cruise June or July?

Both June and July in Halong Bay are hot and humid with similar chances of rain, including potential heavy but short downpours. July, however, falls within the peak of the storm season, carrying a slightly higher risk of cruise disruptions or cancellations due to unpredictable weather, while June might be marginally less crowded before the full domestic summer holiday rush.

Halong Bay in July: Weather, best activities and tips 2025

Besides all the interesting features like attractions, food, culture of the destination, weather plays an important role to plan a perfect trip for travelers. Although the weather of Halong Bay in July is unpredictable, learning about it in advance still gives you better preparation and planning. Ha Long Bay Cheers Tours will give you all information about the weather, best activities and useful tips in this blog. Let’s explore!

1. The weather of Halong Bay in July

Key features of Halong Bay weather July:

Average temperature: 26°C - 31°C (~ 78°F - 87°F)
Humidity: 81.0%
Rainfall: 234.4 mm
Sunshine hours: 7 - 8 hours

While some people might steer clear of July in Vietnam because it's one of the hottest months, especially if you're not used to tropical heat, Halong Bay can still be a pretty good choice, offering more pleasant weather compared to other parts of the northeast. Temperatures can peak around 37°C, and with the humidity around 75%, it can sometimes feel even hotter. Evenings are still warm, dropping to about 26°C. July tends to have similar rainfall to June, with an average of 201mm falling over about 15 days. You might experience some heavy downpours, but these often bring a welcome cool-down, and the sky usually clears up nicely afterward. You can still look forward to a good amount of sunshine, around 7 to 8 hours a day, and the sea will be a lovely warm 30°C, perfect for a refreshing swim or a fun kayak adventure. [caption id="attachment_3102" align="aligncenter" width="900"]

The weather of Halong Bay in July[/caption]

2. What you would like when visiting Halong Bay in July

If I were visiting Halong Bay in July, I'd definitely be looking forward to a few key things:

Hot weather makes activities in water more enjoyable. You could not deny a few laps in the giant natural swimming pool or just jump off the boat to immerse yourself in the crystal clear water.
Another great thing about July is that it's the low season for foreign travelers, which often means you can snag some really good deals on flights, hotels, resorts, sightseeing tours and cruises.
The sea temperature is also wonderfully warm, perfect for swimming, kayaking and all sorts of fun water activities.
And with plenty of sunny days, Halong Bay looks absolutely spectacular. You don't even need to be a pro photographer – just point your phone, and you'll easily capture some stunning shots.

What you may not like about Halong in July:

July is the high season for domestic travelers so maybe you could see more crowds every weekend.
The sun is harsh and it is usually humid and hot.
You may encounter a jellyfish in the summertime of July when swimming but it is not very often.
Storms or typhoons may come, so be ready in case of trip cancellation.

[caption id="attachment_3103" align="aligncenter" width="900"]

What you would like when visiting Halong Bay in July[/caption]

3. Best activities for Halong Bay weather in July

There are some fascinating activities in Halong Bay July for travelers to try with friends and families. Let’s dive into it!

3.1. Experience water activities

Thanks to the typically calm waters in July, Halong Bay is a fantastic spot for kayaking. In fact, National Geographic even recognized it as one of the top 25 kayaking destinations globally, highlighting just how relaxing and special it is. Imagine you are gently paddling across the stunning emerald waters, weaving your way through the towering limestone karsts, exploring incredible caves, and even getting a glimpse into the lives of the local fishermen on a kayak. It’s truly an amazing experience that you can have once in your lifetime. [caption id="attachment_3104" align="aligncenter" width="900"]

Experience water activities in Halong Bay in July[/caption]

3.2. Embark on a Halong Bay cruise

A Halong Bay overnight cruise is such an absolute must-do thing. Imagine cruising through this stunning landscape, passing countless limestone islands and exploring fascinating caves. You will be treated to incredible views, including those magical sunrises and sunsets of Halong Bay cruise in July. But the real treat is experiencing the bay at night – picture yourself on a luxurious 5-star cruise, lulled to sleep by the gentle sounds of the waves, watching the soft mist drift across the water, and soaking in the surreal beauty of Halong under the stars. In addition, you can also enjoy fine dining with your families and friends in a luxurious space with top-notch music at the bay-view restaurant. [caption id="attachment_3105" align="aligncenter" width="900"]

Embark on a Halong Bay cruise[/caption]

Best recommended cruises in Halong Bay:

halongjuly

3.3. Take a seaplane tour

For a truly unforgettable perspective of Halong Bay in July, consider a seaplane tour. This 25-minute flight offers a breathtaking bird's-eye view of the bay's majestic beauty. From high above, you will be amazed by the sprawling limestone karsts, intricate cave systems within the rocks, the inviting sandy beaches, and the sheer number of islets dotting the emerald waters. While this unique experience comes with a higher price tag, costing 2,500,000 - 4,000,000 VND per person, many visitors find the unparalleled views of this UNESCO World Heritage Site absolutely worth it. [caption id="attachment_3106" align="aligncenter" width="900"] Take a seaplane tour in Halong Bay in July

Take a seaplane tour in Halong Bay in July[/caption]

3.4. Go hiking on Titop Island

Hiking to the top of Titop Island is among the most popular things to do in Halong Bay in July. For an amazing panoramic view of Halong Bay, why not take on the challenge of trekking to the top of Ti Top Island? It involves climbing about 400 steps, but the reward is incredible. Once you reach the summit, you will be standing roughly 100 meters above the bay, with a breathtaking vista of its entire stunning expanse stretching out before you.

3.5. Try rock climbing

Rock climbing is a popular activity in Halong Bay in July, loved by both locals and foreign visitors, especially with the warmer weather. The various islands in the bay have climbing spots for everyone, whether you're just starting out or you are a seasoned climber. Some of the top places to check out for rock climbing are Lua Tam Biet, Cerro Torre, and La Plage Des Pirate. [caption id="attachment_3108" align="aligncenter" width="900"]

Try rock climbing in Halong Bay in July[/caption]

3.6. Explore local culture in Cua Van Floating Village

Cua Van Floating Village is truly a sight to behold, with its charming floating houses and numerous small boats gently bobbing in front. While you are there, you can visit the Floating Culture Center to learn about the unique way of life, take a boat ride with the friendly locals, and witness stunning sunsets right from the water. In the evenings, you might even get to enjoy traditional songs performed by the villagers or try some exciting squid fishing. Plus, kayaking is a fantastic way to explore the peaceful beauty of this unique village and its surroundings at your own pace. [caption id="attachment_3109" align="aligncenter" width="900"]

Explore local culture in Cua Van Floating Village[/caption]

3.7. Enjoy Halong delicacies

It's no wonder people keep returning to Halong Bay because the food is incredible. With super fresh seafood like stone crab, mantis shrimp, clams, scallops, fish, and squid, you are in for a treat. Beyond the amazing seafood dishes, make sure to try rice noodles with mantis shrimp, the tasty squid patties served with steamed rice pancakes, and the delicious Halong yogurt with tapioca pearls. These local specialties are a real highlight, and you can eat at Ha Long night market or morning local market.

4. Useful tips for visiting Halong Bay in July

To ensure a comfortable experience for a trip to Halong Bay in July, proper packing and other tips are essential.

4.1. Packing tips

Here are some packing tips to help you make the most of your trip to Halong Bay in July weather:

Bring a waterproof bag to protect your belongings (mobile phones, camera,...) from the rain and splashes.
Stay dry during sudden downpours with an umbrella or a rain jacket.
Recommended to bring insect repellent to ward off mosquitoes or other insects in the humid summer months.
Bring sunglasses and sunscreen by your side to shield your eyes and skin from the strong sun rays.
Opt for lightweight fabric like linen of cotton to stay comfortable in July's hot and humid climate.

4.2. Other notes for a perfect trip

Since Halong Bay weather in July can bring some unexpected changes due to sudden downpours, you can consider these extra tips to help with the planning process, especially if you plan to book a cruise tour:

Check the detailed weather forecast before planning your trip to Halong Bay Vietnam.
Stay informed, as your cruise operator will send notification if the cruise is canceled due to an incoming storm or typhoon.
Have a backup plan in your schedule in case of cancellation from the cruise operator, consider alternative activities until the weather improves.

[caption id="attachment_3110" align="aligncenter" width="900"]

Useful tips for visiting Halong Bay in July[/caption] In conclusion, Halong Bay in July generally offers good weather for getting outdoors, with plenty of sunny days to enjoy. Just keep in mind that sudden downpours can happen, so being prepared for a bit of rain is a good idea. Overall, with a little planning, a trip to explore Halong Bay cruise July can be a really fantastic experience.

5. FAQ

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