The highest day temperature in August 2025 was 90°F. The lowest night temperature was 72°F. The average values for day and night temperatures during August were 84.2°F и 76.8°F respectivly.

The average sea surface temperature in August 2025 for San Augustin was 77.3°F. The maximum and minimum values were 76.4°F and 78.0°F respectively.

Almost all days in August are sunny. There is very low probability of clouds or gloomy days.

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

The average wind speed in August is 14.5 mph. It makes August one of the most windy months of the year for San Augustin.

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 August is 12.1 hours.