The highest day temperature in March 2025 was 89°F. The lowest night temperature was 46°F. The average values for day and night temperatures during March were 75.7°F и 62.5°F respectivly.

The average sea surface temperature in March 2025 for Galveston Island was 66.7°F. The maximum and minimum values were 60.0°F and 75.0°F respectively.

You can expect various weather conditions during March. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in March for Galveston Island is 0.6 in. It makes march one of the least rainy months of the year.

The average wind speed in March is 10.6 mph.

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 Galveston Island in March is 6.0 hours.