September weather forecastChilon, Mexico
September
Weather in September
September, the first month of the autumn in Chilon, is also a hot month, with an average temperature ranging between max 31°C (87.8°F) and min 20.9°C (69.6°F).Temperature
September's weather displays an average high-temperature of a still hot 31°C (87.8°F), slightly varied from August's 32.1°C (89.8°F). Chilon throughout September, experiences an average nighttime temperature of 20.9°C (69.6°F).Heat index
September's average heat index is computed to be a blistering 43°C (109.4°F). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In Chilon, Mexico, the average relative humidity in September is 85%.Rainfall
In Chilon, during September, the rain falls for 26.9 days and regularly aggregates up to 168mm (6.61") of precipitation. In Chilon, Mexico, during the entire year, the rain falls for 225.6 days and collects up to 1285mm (50.59") of precipitation.Daylight
In Chilon, the average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 5:55 am and sunset at 6:22 pm. On the last day of September, in Chilon, sunrise is at 5:59 am and sunset at 5:58 pm CST.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chilon, Mexico
- Average high temperature in September: 31°C
The warmest months (with the highest average high temperature) are April and May (34.8°C).
The month with the lowest average high temperature is January (26.3°C).
- Average low temperature in September: 20.9°C
The month with the highest average low temperature is May (22.7°C).
The coldest month (with the lowest average low temperature) is January (16.4°C).
Average pressure in September
Chilon, Mexico
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is January (1017mbar).
The month with the lowest atmospheric pressure is May (1011.4mbar).
Average wind speed in September
Chilon, Mexico
- Average wind speed in September: 4.3km/h
The windiest month (with the highest average wind speed) is July (6.2km/h).
The calmest month (with the lowest average wind speed) is September (4.3km/h).
Average humidity in September
Chilon, Mexico
- Average humidity in September: 85%
The month with the highest relative humidity is October (86%).
The month with the lowest relative humidity is April (64%).
Average rainfall in September
Chilon, Mexico
- Average rainfall in September: 168mm
The wettest month (with the highest rainfall) is June (191mm).
The driest month (with the least rainfall) is March (41mm).
Average rainfall days in September
Chilon, Mexico
- Average rainfall days in September: 26.9 days
The month with the highest number of rainy days is September (26.9 days).
The month with the least rainy days is March (11.7 days).
Average daylight in September /
Average sunshine in September
Chilon, Mexico
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is May (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Chilon, Mexico
- Average sunshine days in September: 2.2 days
The month with the most sunshine days is March (18.1 days).
The month with the least sunshine days is September (2.2 days).
Average UV index in September
Chilon, Mexico
- Average UV index in September: 6
The months with the highest UV index are March, April, June and July (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in September
Chilon, Mexico
- Average cloud cover in September: 48
The month with the most cloud cover is October (Cloud cover 53).
The month with the least cloud cover is April (Cloud cover 24).
Average visibility in September
Chilon, Mexico
- Average visibility in September: 7km
The months with the highest visibility are March, April, May and July (9km).
The month with the lowest visibility is October (6km).





