| < September >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in San Luis in September is mild at 14.5 °C (58.1 °F).
- Afternoons can be really warm with average high temperatures reaching 21.7 °C (71.1 °F).
- Overnight temperatures are generally a little cool with an average low of 7.8 °C (46 °F).
- The variation/ range of diurnal average temperatures in September is 13.9 °C (25 °F).
- The weather in September is droughty. A paltry 19.2mm (0.8in) of liquid falls.
- The shortest day is 11:26 long and the longest day is 12:27 long with an average length of 11:57.
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Weather Trend Graph for September in San Luis, Argentina
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