Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A minor adjustment in San Luis's average high-temperature is noted with the start of September, touching an agreeable 20.7°C (69.3°F) from August's 18.3°C (64.9°F). San Luis's nighttime temperature during September is consistently averaged at a fresh 10.4°C (50.7°F).Humidity
The average relative humidity in September in San Luis is 46%.Rainfall
In San Luis, in September, during 6.1 rainfall days, 13mm (0.51") of precipitation is typically accumulated. In San Luis, during the entire year, the rain falls for 102.6 days and collects up to 350mm (13.78") of precipitation.Snowfall
June through September are months with snowfall. September is the last month it regularly snows in San Luis. During 0.3 snowfall days, in September, San Luis aggregates 1mm (0.04") of snow. In San Luis, during the entire year, snow falls for 1.3 days and aggregates up to 10mm (0.39") of snow.Daylight
In September, the average length of the day in San Luis is 11h and 54min.On the first day of September in San Luis, sunrise is at 07:42 and sunset at 19:08. On the last day of the month, sunrise is at 07:02 and sunset at 19:27 -03.
Sunshine
The average sunshine in September in San Luis is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoiding the Sun during its peak radiation time around midday is a healthy practice. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the temperature in September in San Luis?
What is the average humidity in September in San Luis?
How much does it rain in San Luis in September?
What is the last month it snows in San Luis?
How many hours of daylight does San Luis have in September?
What time are sunrise and sunset in September in San Luis?
How many hours of sunshine does San Luis have in September?
What is the UV index intensity in September in San Luis?
Average temperature in September
San Luis, Argentina
- Average high temperature in September: 20.7°C
The warmest month (with the highest average high temperature) is January (31°C).
The month with the lowest average high temperature is July (14.6°C).
- Average low temperature in September: 10.4°C
The month with the highest average low temperature is January (20.1°C).
The coldest month (with the lowest average low temperature) is July (5.9°C).
Average pressure in September
San Luis, Argentina
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is July (1017.9mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).
Average wind speed in September
San Luis, Argentina
- Average wind speed in September: 17.2km/h
The windiest month (with the highest average wind speed) is October (18.6km/h).
The calmest month (with the lowest average wind speed) is May (13.1km/h).
Average humidity in September
San Luis, Argentina
- Average humidity in September: 46%
The month with the highest relative humidity is May (63%).
The month with the lowest relative humidity is December (43%).
Average rainfall in September
San Luis, Argentina
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is January (59mm).
The driest months (with the least rainfall) are July and August (2mm).
Average rainfall days in September
San Luis, Argentina
- Average rainfall days in September: 6.1 days
The month with the highest number of rainy days is November (14.2 days).
The month with the least rainy days is August (1.7 days).
Average snowfall in September
San Luis, Argentina
- Average snowfall in September: 1mm
The month with the highest snowfall is June (6mm).
The months with the least snowfall are January, February, March, April, May, October, November and December (0mm).
Average snowfall days in September
San Luis, Argentina
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is July (0.5 days).
The months with the least snowfall days are January, February, March, April, May, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
San Luis, Argentina
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are January and December (Average sunshine: 9h and 36min).
The month with the least sunshine is May (Average sunshine: 9h and 0min).
Average sunshine days in September
San Luis, Argentina
- Average sunshine days in September: 21.6 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in September
San Luis, Argentina
- Average UV index in September: 5
The months with the highest UV index are January, February, October, November and December (UV index 6).
The months with the lowest UV index are May and June (UV index 3).
Average cloud cover in September
San Luis, Argentina
- Average cloud cover in September: 17
The months with the most cloud cover are April and May (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
San Luis, Argentina
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
San Luis, Argentina
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