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
Entering September, Unión de San Antonio's average high-temperature reads a still moderately hot 24.2°C (75.6°F), indicating a close resemblance to the previous month's climate. Unión de San Antonio reports a sharp reduction in temperature during September, averaging at a cool 12.2°C (54°F) at night.Humidity
The most humid month in Unión de San Antonio is September, with an average relative humidity of 77%.Rainfall
In Unión de San Antonio, in September, during 21.1 rainfall days, 71mm (2.8") of precipitation is typically accumulated. Throughout the year, in Unión de San Antonio, there are 128.3 rainfall days, and 441mm (17.36") of precipitation is accumulated.Daylight
In Unión de San Antonio, Mexico, the average length of the day in September is 12h and 16min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:03 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:36 pm CST.
Sunshine
In September, the average sunshine in Unión de San Antonio is 9.4h.UV index
The average daily maximum UV index in September in Unión de San Antonio is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Unión de San Antonio in September?
What is the most humid month in Unión de San Antonio?
What is the average humidity in September in Unión de San Antonio?
How many days does it rain in September in Unión de San Antonio?
How many hours of daylight does Unión de San Antonio have in September?
What time are sunrise and sunset in September in Unión de San Antonio?
How long on average sun shines in September in Unión de San Antonio?
What is the UV index reading in September in Unión de San Antonio?
Average temperature in September
Unión de San Antonio, Mexico
- Average high temperature in September: 24.2°C
The warmest month (with the highest average high temperature) is May (29.7°C).
The month with the lowest average high temperature is January (21.3°C).
- Average low temperature in September: 12.2°C
The month with the highest average low temperature is June (16°C).
The coldest month (with the lowest average low temperature) is January (8°C).
Average pressure in September
Unión de San Antonio, Mexico
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is January (1018.1mbar).
The month with the lowest atmospheric pressure is May (1013.4mbar).
Average wind speed in September
Unión de San Antonio, Mexico
- Average wind speed in September: 7.5km/h
The windiest month (with the highest average wind speed) is April (10.1km/h).
The calmest month (with the lowest average wind speed) is July (7km/h).
Average humidity in September
Unión de San Antonio, Mexico
- Average humidity in September: 77%
The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is April (32%).
Average rainfall in September
Unión de San Antonio, Mexico
- Average rainfall in September: 71mm
The wettest month (with the highest rainfall) is July (102mm).
The driest month (with the least rainfall) is April (5mm).
Average rainfall days in September
Unión de San Antonio, Mexico
- Average rainfall days in September: 21.1 days
The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is February (3.3 days).
Average daylight in September /
Average sunshine in September
Unión de San Antonio, Mexico
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are January, March, May and December (Average sunshine: 9h and 48min).
The month with the least sunshine is July (Average sunshine: 9h and 6min).
Average sunshine days in September
Unión de San Antonio, Mexico
- Average sunshine days in September: 6.8 days
The months with the most sunshine days are January and December (26.5 days).
The month with the least sunshine days is July (5.7 days).
Average UV index in September
Unión de San Antonio, Mexico
- Average UV index in September: 5
The months with the highest UV index are April and May (UV index 6).
The months with the lowest UV index are January and November (UV index 4).
Average cloud cover in September
Unión de San Antonio, Mexico
- Average cloud cover in September: 34
The months with the most cloud cover are July and September (Cloud cover 34).
The month with the least cloud cover is March (Cloud cover 10).
Average visibility in September
Unión de San Antonio, Mexico
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The month with the lowest visibility is September (8km).
Unión de San Antonio, Mexico
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