The highest day temperature in March 2025 was 84°F. The lowest night temperature was 57°F. The average values for day and night temperatures during March were 73.1°F и 66.6°F respectivly.

The average sea surface temperature in March 2025 for Ha Long was 69.8°F. The maximum and minimum values were 66.8°F and 72.8°F respectively.

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

Precipitation total in March for Ha Long is 1.2 in. It makes march one of the least rainy months of the year.

The average wind speed in March is 8.1 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 March is 4.1 hours.