The highest day temperature in May 2026 was 87°F. The lowest night temperature was 74°F. The average values for day and night temperatures during May were 82.1°F и 81.1°F respectivly.

The average sea surface temperature in May 2026 for South Padre Island was 82.3°F. The maximum and minimum values were 78.2°F and 85.6°F respectively.

Most of the days in May are cloudy but you can also expect sunny or gloomy days.

Precipitation total in May for South Padre Island is 1.0 in. It makes may one of the most rainy months of the year.

The average wind speed in May is 13.7 mph. It makes May one of the most windy months of the year for South Padre 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 South Padre Island in May is 7.2 hours.