The highest day temperature in June 2025 was 63°F. The lowest night temperature was 44°F. The average values for day and night temperatures during June were 56.8°F и 50.0°F respectivly.

The average sea surface temperature in June 2025 for San Antonio was 54.3°F. The maximum and minimum values were 52.8°F and 55.6°F respectively.

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

Precipitation total in June for San Antonio is 1.4 in. It makes june the most rainy month of the year.

The average wind speed in June is 7.7 mph. This value is relatively stable throughout the year.

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 Antonio in June is 6.4 hours.