The highest day temperature in May 2025 was 77°F. The lowest night temperature was 63°F. The average values for day and night temperatures during May were 72.7°F и 66.6°F respectivly.

The average sea surface temperature in May 2025 for San Augustin was 71.3°F. The maximum and minimum values were 69.2°F and 73.0°F respectively.

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

Precipitation total in May for San Augustin is 0.1 in. This value is relatively stable throughout the year.

The average wind speed in May is 12.2 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 San Augustin in May is 11.7 hours.