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
In September, San José de Llanos experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 25.3°C (77.5°F) in August to a still warm 24.3°C (75.7°F). San José de Llanos registers a consistent average low-temperature of 12.7°C (54.9°F) during September.Humidity
With an average relative humidity of 75%, September is the most humid month.Rainfall
In San José de Llanos, in September, during 18.7 rainfall days, 72mm (2.83") of precipitation is typically accumulated. Throughout the year, there are 121.8 rainfall days, and 434mm (17.09") of precipitation is accumulated.Daylight
In September, the average length of the day in San José de Llanos is 12h and 15min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:00 pm. On the last day of September, in San José de Llanos, sunrise is at 6:36 am and sunset at 6:33 pm CST.
Sunshine
In September, the average sunshine in San José de Llanos is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What are September temperatures in San José de Llanos?
What is the most humid month in San José de Llanos?
What is the average humidity in September in San José de Llanos?
How much does it rain in San José de Llanos in September?
What is the average length of the day in September in San José de Llanos?
When are sunrise and sunset in September in San José de Llanos?
How many hours of sunshine does San José de Llanos have in September?
What is the UV index reading in September in San José de Llanos?
Average temperature in September
San José de Llanos, Mexico
- Average high temperature in September: 24.3°C
The warmest month (with the highest average high temperature) is May (29.3°C).
The month with the lowest average high temperature is January (21.1°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is June (15.7°C).
The coldest month (with the lowest average low temperature) is January (7.5°C).
Average pressure in September
San José de Llanos, Mexico
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is January (1018.2mbar).
The month with the lowest atmospheric pressure is May (1013.5mbar).
Average wind speed in September
San José de Llanos, Mexico
- Average wind speed in September: 8.9km/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 December (8.1km/h).
Average humidity in September
San José de Llanos, Mexico
- Average humidity in September: 75%
The month with the highest relative humidity is September (75%).
The month with the lowest relative humidity is April (34%).
Average rainfall in September
San José de Llanos, Mexico
- Average rainfall in September: 72mm
The wettest month (with the highest rainfall) is July (96mm).
The driest months (with the least rainfall) are January and December (5mm).
Average rainfall days in September
San José de Llanos, Mexico
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is July (22 days).
The month with the least rainy days is December (2.5 days).
Average daylight in September /
Average sunshine in September
San José de Llanos, 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 month with the most sunshine is December (Average sunshine: 9h and 54min).
The month with the least sunshine is July (Average sunshine: 9h and 18min).
Average sunshine days in September
San José de Llanos, Mexico
- Average sunshine days in September: 8.3 days
The month with the most sunshine days is December (27 days).
The month with the least sunshine days is July (5 days).
Average UV index in September
San José de Llanos, 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 December (UV index 4).
Average cloud cover in September
San José de Llanos, Mexico
- Average cloud cover in September: 34
The month with the most cloud cover is September (Cloud cover 34).
The month with the least cloud cover is March (Cloud cover 10).
Average visibility in September
San José de Llanos, 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).
San José de Llanos, Mexico
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