| < December >
|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 December is fairly hot at 23.6 °C (74.48 °F).
- Afternoons can be very hot with average high temperatures reaching 30.4 °C (86.7 °F).
- Overnight temperatures are generally very mild with an average low of 16.8 °C (62.2 °F).
- The variation/ range of diurnal average temperatures in December is 13.6 °C (24.5 °F).
- The weather in December is not exactly parched. Circa 101.3mm (4in) of fluidis dumped .
- The shortest day is 14:11 long and the longest day is 14:20 long with an average length of 14:18.
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Weather Trend Graph for December in San Luis, Argentina
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