The highest day temperature in January 2026 was 75°F. The lowest night temperature was 52°F. The average values for day and night temperatures during January were 69.7°F и 61.2°F respectivly.

The average sea surface temperature in January 2026 for Ha Long was 68.6°F. The maximum and minimum values were 65.4°F and 72.4°F respectively.

Most of the days in January are gloomy but you can also expect sunny days.

Precipitation total in January for Ha Long is 0.9 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 9.0 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Ha Long in January is 4.4 hours.