Weather in San Luis: September
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Average day temperature: | 69.1°F |
| Average night temperature: | 54.1°F | |
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Number of sunny days: | 22 days |
| Day length: | 11.4 - 12.4 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.3 in. | |
| more information | ||
14 days
forecast
forecast
| San Luis |
weather in
October
October
| San Luis |
Air temperature in September, °F
Show year:
2025
2024
2023
The highest day temperature during September of 2025 was 81°F. At the same time the lowest night temperature was 34°F. Daily and nightly averages during September were 68.6°F and 54.2°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in San Luis in September is 0.3 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 11.0 mph It makes September 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 September is: 9.5.
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: 03:51
December 15, monday
0600
57°F
W
5 mph
5 mph
0900
66°F
NW
12 mph
12 mph
1200
73°F
NW
9 mph
9 mph
1500
77°F
NW
7 mph
7 mph
1800
77°F
NW
9 mph
9 mph
2100
68°F
W
11 mph
11 mph
December 16, tuesday
0000
64°F
W
9 mph
9 mph
0300
63°F
W
6 mph
6 mph
