Being in the middle of winter, January in Halong Bay is rather cold with the average temperature at 17oC. The maximum temperature hovers around 20oC and the minimum temperature is around 14oC. While there is a long 11 hours of daylight, the sun is on for shining for only 3 hours.
Though the sea temperature is around 21oC, it is still cold to swim as once you come out of the water, the chilly air will make you feel freezing.
Clothes guidance: Bringing light sweater and coat is a good idea to shield from the cold and occasional rain though the average rainfall is only 18mm/month and lasts for around 10 days in Halong.
Tips: Check the calendar to see if your travel will coincide with Lunar New Year. During this holiday, many businesses, banks and even some cruises will stop running but as Halong Bay is a tourist area, many hotels, cruises and restaurants are still opened to welcome guest with usually a holiday surcharge.
- Average temperature: 17oC
- Average sea Temperature: 21oC
- Monthly rainfall: 18mm
- Average hours of sunshine per day: 3 hours
