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Hourly Forecast
Daylight Hours
05:32
Sunrise
17:36
Sunset
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Waxing Gibbous
16:55
Moonrise
04:38
Moonset
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View stargazing scoreWeather in San Antonio today, September 25, 2026
San Antonio sees a largely clear day on September 25, 2026, interrupted by cloudier skies around 11:00. Plan for bright conditions either side of that cloudier interval. The morning looks comparatively open, with cloud near 15% around 11:00. Early outdoor plans have a better chance of staying dry and bright.
The temperature range runs from about 16°C up to 27°C. Moisture in the air spans 16%-51%, with the highest values around 23:00. Airflow remains manageable, reaching about 4.2 km/h around 13:00.
Afternoon conditions open up, holding cloud close to 15% near 12:00. The day finishes on a milder, brighter note. Views remain open at about 16.1 km. Daylight runs from 05:32 to 17:36, lasting 12 hours 4 minutes of sunlight today.
The practical takeaway for San Antonio is a bright September 25, 2026, ideal for outdoor errands before temperatures ease from about 27°C.
Frequently asked questions about weather in San Antonio
How warm does it get in San Antonio?
The warmest month in San Antonio is October, with average high temperatures of 23°C. The average temperature during this period is around 18°C.
How cold does it get in San Antonio?
The coldest month in San Antonio is June, with average low temperatures of 13°C. The average temperature during this period is around 17°C.
What is the wettest time of year in San Antonio?
The wettest month in San Antonio is February, with an average of 79mm of precipitation.
What is the driest time of year in San Antonio?
The driest month in San Antonio is August, with an average of 0mm of precipitation.
