ArgentinaThe weather in September in San Luis
It's warm in September in San Luis with an average temperature of 24°C. Temperatures this month range from a low of 20°C to a high of 28°C. At night, you can expect temperatures between 7°C and 14°C.
Looking for great weather? September is a good time to be in San Luis. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for San Luis, Argentina. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 38°C in 2018, San Luis reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 5°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 22°C.
Precipitation and snowfall
In September, there is an average of 31 mm of precipitation, spread over 6 days. Of the total precipitation, about 0,1 cm falls as snow in September. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in September for San Luis
Click on any day in September to get detailed info about the usual weather on that day in San Luis. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| San Luis | New York | |
|---|---|---|
| Average temperature | 24°C | 27°C |
| Max. temperature | 28°C | 31°C |
| Min. temperature | 7°C | -5°C |
| Total precipitation | 31 mm | 57 mm |
| Rainy days | 6 days | 9 days |
| Total snowfall | 0,1 cm | 0 cm |
| Snowy days | 1 day | 0 days |
Start of September
The month of September starts in San Luis with warm temps, averaging around 23°C during the day and nights around 9°C.
Mid September
By mid-September, daytime temps rise to around 25°C, with nights around 10°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of September
By the end of September, the average daytime temperature in San Luis is around 26°C, while nighttime temps are about 13°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of San Luis for all months and discover the best travel time
Curious about the weather in other parts of Argentina? Check out the climate and weather for spots like Buenos Aires, Patagonia, Ushuaia, or explore other destinations in Argentina.
Temperature charts
These charts show the average temperatures in September in San Luis, Argentina. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in San Luis
Temperature in September in San Luis over the years
Precipitation charts
These charts show the average amount of precipitation in September in San Luis, Argentina. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in San Luis
Total precipitation in September in San Luis over the years
Daily Snowfall in September in San Luis
Snowfall in September in San Luis per year
Daily UV index in September in San Luis
This chart shows the average daily UV index in September in San Luis, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in San Luis
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Average weather in San Luis by month
Click on a month below to see detailed weather info for San Luis. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.