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Weather in September in San Antonio, Texas

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< September >
 
Normal Max/ High Temperature 32°C (89°F)
 
Average Temperature 26°C (79°F)
 
Min/ Low Temperature 21°C (69°F)
 
Normal Precipitation 87mm (3.4in)
Number of Wet Days (probability of rain on a day) 7 (23%)
Average Sunlight per day 08:56
Average Daylight per day 12:17
Sunny (Cloudy) Daylight Hours 73% (27%)
Sun altitude at solar noon on the 21st day.
60.9°


  • The average temperature in San Antonio, Texas in September is hot at 26.3 °C (79.34 °F).
  • Afternoons can be very, very hot with average high temperatures reaching 31.8 °C (89.2 °F).
  • Overnight temperatures are generally warm with an average low of 20.7 °C (69.3 °F).
  • In September the mean diurnal temperature variation/ range is 11.1 °C (20 °F).
  • The weather in September is dryish with sporadic rain. Just 86.6mm (3.4in) of liquid accrues across an average of 7 days.
  • In September the skies in San Antonio, Texas are quite sunny with on average a sizable 8:56 of brilliant sunshine per day.
  • The shortest day is 11:50 long and the longest day is 12:43 long with an average length of 12:17.
  • There are approximately 3:13 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 73.5% of daylight hours and cloudy 26.5% of daylight hours.

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Weather Trend Graph for September in San Antonio, Texas, Usa

Graph of weather in San Antonio, Texas in September

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