Weather in San Luis: December
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Average day temperature: | 84.0°F |
| Average night temperature: | 67.9°F | |
 |
Number of sunny days: | 19 days |
| Day length: | 14.2 - 14.4 hours | |
 |
Number of rainy days: | 2 days |
| Precipitation totals: | 0.9 in. | |
| more information | ||
14 days
forecast
forecast
| San Luis |
weather in
January
January
| San Luis |
Air temperature in December, °F
Show year:
2025
2024
2023
The highest day temperature during December of 2025 was 91°F. At the same time the lowest night temperature was 56°F. Daily and nightly averages during December were 82.6°F and 67.6°F.
Sunny, partly cloudy and cloudy days
Mostly all days in December are sunny but cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in San Luis in December is 0.9 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 10.8 mph It makes December one of the most windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 10.3.
Best time for vacation in San Luis
San Luis on a weather map
Places in Argentina:
Name
°F
24 Hours Forecast
San Luis
Local time: 17:03
December 30, tuesday
1800
93°F
SW
4 mph
4 mph
2100
82°F
E
1 mph
1 mph
December 31, wednesday
0000
79°F
S
6 mph
6 mph
0300
77°F
SE
6 mph
6 mph
0600
73°F
S
8 mph
8 mph
0900
84°F
SE
7 mph
7 mph
1200
91°F
E
5 mph
5 mph
1500
91°F
S
4 mph
4 mph
