If water activities are the core focus of your trip to Halong Bay, October is the last chance to go before it gets cold. The temperature is much more cooler than the previous summer months, staying at 24.5oC on average. The amount of rainfall drops significantly to only 86mm, distributing over 11 wet days. Many people will find that October is the perfect month to visit Halong Bay with reasonable heat and humidity level. 6hours of sunshine is enough to capture some beautiful shots of the bay. 

Clothes guidance: Dress comfortably with shorts, T-shirts, tank tops and dresses to look your best in your travel pictures. Don’t forget to bring your swimsuit for your swimming time in Halong Bay. 

  • Average temperature: 24.5oC 
  • Average sea temperature: 28oC
  • Monthly rainfall: 86mm
  • Average hours of sunshine per day: 6 hours