The highest day temperature in April 2026 was 86°F. The lowest night temperature was 60°F. The average values for day and night temperatures during April were 78.6°F и 74.8°F respectivly.

The average sea surface temperature in April 2026 for Mustang Island was 77.7°F. The maximum and minimum values were 75.2°F and 81.6°F respectively.

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

Precipitation total in April for Mustang Island is 0.7 in.

The average wind speed in April is 14.2 mph. It makes April the most windy month of the year for Mustang 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 Mustang Island in April is 6.2 hours.