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 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
September welcomes an average high-temperature of a still comfortable 17.9°C (64.2°F), not much different from the preceding month. The low-temperature in San Luis el Alto averages to a frosty 9.5°C (49.1°F) during the nights of September.Humidity
With an average relative humidity of 86%, September is the most humid month in San Luis el Alto.Rainfall
In San Luis el Alto, during September, the rain falls for 28.2 days and regularly aggregates up to 221mm (8.7") of precipitation. In San Luis el Alto, Mexico, during the entire year, the rain falls for 216.4 days and collects up to 1402mm (55.2") of precipitation.Daylight
In September, the average length of the day in San Luis el Alto is 12h and 14min.On the first day of the month, sunrise is at 6:24 am and sunset at 6:54 pm. On the last day of September, in San Luis el Alto, Mexico, sunrise is at 6:30 am and sunset at 6:28 pm CST.
Sunshine
In September, the average sunshine is 8.2h.UV index
In San Luis el Alto, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What are the temperatures in San Luis el Alto in September?
What is the most humid month in San Luis el Alto?
What is the average humidity in September in San Luis el Alto?
How much does it rain in San Luis el Alto in September?
What is the average length of the day in September in San Luis el Alto?
When are sunrise and sunset in September in San Luis el Alto?
How long on average sun shines in September in San Luis el Alto?
How high is the UV index in September in San Luis el Alto?
Average temperature in September
San Luis el Alto, Mexico
- Average high temperature in September: 17.9°C
The warmest month (with the highest average high temperature) is April (22.5°C).
The month with the lowest average high temperature is January (17.1°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is May (10.8°C).
The coldest month (with the lowest average low temperature) is January (4.7°C).
Average pressure in September
San Luis el Alto, Mexico
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.7mbar).
Average wind speed in September
San Luis el Alto, Mexico
- Average wind speed in September: 5.1km/h
The windiest months (with the highest average wind speed) are March and April (6.8km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).
Average humidity in September
San Luis el Alto, Mexico
- Average humidity in September: 86%
The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is April (47%).
Average rainfall in September
San Luis el Alto, Mexico
- Average rainfall in September: 221mm
The wettest month (with the highest rainfall) is July (291mm).
The driest month (with the least rainfall) is December (11mm).
Average rainfall days in September
San Luis el Alto, Mexico
- Average rainfall days in September: 28.2 days
The month with the highest number of rainy days is July (30.4 days).
The month with the least rainy days is January (6.5 days).
Average daylight in September /
Average sunshine in September
San Luis el Alto, Mexico
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is March (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).
Average sunshine days in September
San Luis el Alto, Mexico
- Average sunshine days in September: 0.9 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (0.2 days).
Average UV index in September
San Luis el Alto, Mexico
- Average UV index in September: 4
The months with the highest UV index are March and April (UV index 5).
The months with the lowest UV index are June, August and October (UV index 3).
Average cloud cover in September
San Luis el Alto, Mexico
- Average cloud cover in September: 47
The months with the most cloud cover are July and September (Cloud cover 47).
The months with the least cloud cover are February, March and December (Cloud cover 13).
Average visibility in September
San Luis el Alto, Mexico
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, May and December (10km).
The months with the lowest visibility are August and September (7km).
San Luis el Alto, Mexico
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