By Evelyn Nguyen, Apr 23, 2025
July in Vietnam marks the peak of summer, with bright skies, hot temperatures, and a buzz of energy in coastal destinations. And what better way to escape the city heat than with a refreshing getaway to the emerald waters of Halong Bay?
If you're wondering what Halong Bay weather in July is like, and whether it's a good time to visit, this guide covers everything from temperature and rainfall to what to expect on your cruise to decide when to visit Halong Bay.
Enjoy Halong Bay in July
According to Halong Bay weather by month, July is right in the middle of summer in Halong Bay, so expect hot days, warm nights, and the kind of weather that makes you want to jump straight into the water.
Is Halong Bay good in July? It’s hot, no doubt about it. During the day, Halong Bay weather averages usually range from 28°C to 32°C, and sometimes even a bit higher. The heat peaks in the early afternoon, so if you’re planning to go kayaking or explore caves, it’s best to do it in the morning. At night, it stays warm, around 25°C to 27°C, so you can still enjoy being outdoors without needing a jacket.
Halong Bay in the rain
July in Halong Bay is a wet month, but that doesn’t mean it rains all the time. You might get short, heavy showers in the afternoon or evening, but mornings are often clear and sunny. It’s very humid, around 85% to 90%, so your clothes might feel sticky, and you’ll want to drink lots of water.
Because Halong Bay Vietnam weather in July is in the middle of the typhoon season (June to September), there’s a small chance of storms. Big storms don’t happen often, but when they do, cruise schedules can change or be delayed for safety. Most of the time, though, Halong Bay cruises still go as planned.
The sea is nice and warm, about 28°C to 30°C, which is great for swimming, kayaking, or just relaxing on the sundeck. The water is usually calm, but it can get choppy if there’s a storm nearby.
In Summary:
So, if you’re planning a trip to Halong Bay this July, let’s see what you can explore during the trip.
Most mornings are bright and sunny, great for taking a Halong Bay cruise, kayaking through limestone caves, or just lying back and enjoying the view.
Afternoons, however, often bring quick tropical showers or even a thunderstorm. The rain usually doesn’t last long, and sometimes you’ll get beautiful skies right after.
Relaxing on Halong Bay cruise sundeck
While July is still part of the summer holidays in Vietnam, it’s not as packed as the peak months like October or January. You’ll likely have a bit more space on the boat and at the main sightseeing spots. So, the weather in Halong Bay in July is the greatest advantage tourists can gain during this time.
Because the sea is so warm and the weather’s hot, July is ideal for swimming, kayaking, and even jumping off the boat if your Halong Bay cruises in July allows it. Just check with the crew about safety if it looks like rain is on the way.
The water temperature in July is usually around 28-30°C, so it feels just right.
>> Where to swim: Many Halong Bay cruise itineraries include swimming stops near Titop Island, Ba Trai Dao Beach, or the quieter waters of Lan Ha Bay. These areas are known for clear, calm water and beautiful surroundings.
One of the most popular and rewarding ways to explore Halong Bay. Paddle through narrow passages, visit hidden caves, and glide past limestone cliffs.
>> Where to kayak: Great kayaking spots include Luon Cave, Dark and Bright Cave (Hang Sang Toi) in Lan Ha Bay, and the peaceful waters around Cong Do or Vung Vieng Fishing Village in Bai Tu Long Bay.
Halong Bay kayaking
Small boat or bamboo boat tours offer a slower, peaceful way to see floating villages and untouched beaches for those who prefer relaxing over paddling.
>> Where to go: Try Cua Van Floating Village, Ba Hang Fishing Village, or the lagoons near Dark and Bright Cave.
Traveling to Halong Bay in July can be an amazing experience, but there are a few things you should keep in mind to make the most of your trip.
July is one of the hottest months in Halong Bay, with temperatures often climbing above 30°C. The humidity is also high, so you might feel sticky and tired faster than usual. It’s important to drink water often and take breaks in the shade when possible.
Short rain showers are common, and there’s a small chance of tropical storms or typhoons. These usually come with advanced warnings, but they can lead to cruise cancellations or changes in the itinerary. Always check the forecast before your trip and stay in touch with your cruise operator.
If there’s a storm warning, cruises may be delayed, shortened, or canceled for safety. Most reputable cruise companies will give you options to rebook or get a refund, but it’s good to have a backup plan just in case.
Calista Cruise - The 6-star Halong Bay cruise
July is summer vacation time for local families, so places like Titop Island or Sung Sot Cave may be busier than usual. If you prefer a quieter vibe, consider choosing a cruise that visits Bai Tu Long Bay or Lan Ha Bay instead.
Bring breathable clothes like cotton or linen. A wide-brim hat, sunglasses, and flip-flops or sandals will help you stay cool and comfortable during the day.
Even on cloudy days, the sun can be strong. Always use sunscreen with high SPF, and reapply if you’re sweating or swimming.
In July, safety matters more than ever. Book with trusted Halong Bay cruise operator that follows weather updates closely and has a clear policy for delays or cancellations.
Enjoy your Halong Bay trip
So, can you visit Halong Bay in July? Visiting Halong Bay in July can be a great summer getaway if you don’t mind a bit of heat and the chance of rain. With a little planning, you’ll still have an amazing time exploring one of Vietnam’s most stunning places.
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