The highest day temperature in March 2026 was 80°F. The lowest night temperature was 39°F. The average values for day and night temperatures during March were 72.5°F и 65.0°F respectivly.

The average sea surface temperature in March 2026 for Galveston Island was 71.6°F. The maximum and minimum values were 65.0°F and 76.0°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 0.5 in. It makes march one of the least rainy months of the year.

The average wind speed in March is 11.0 mph. It makes March one of the most windy months of the year for Galveston Island.

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 6.2 hours.