The highest day temperature in May 2026 was 91°F. The lowest night temperature was 61°F. The average values for day and night temperatures during May were 83.9°F и 77.7°F respectivly.

The average sea surface temperature in May 2026 for Port Aransas was 82.2°F. The maximum and minimum values were 78.6°F and 85.0°F respectively.

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

Precipitation total in May for Port Aransas is 1.2 in. It makes may one of the most rainy months of the year.

The average wind speed in May is 14.0 mph. It makes May one of the most windy months of the year for Port Aransas.

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 Port Aransas in May is 7.0 hours.