September weather forecastChalchihuapan, Mexico
September
Weather in September
September, the first month of the autumn in Chalchihuapan, is also an enjoyable month, with an average temperature fluctuating between 18.2°C (64.8°F) and 9.7°C (49.5°F).Temperature
Upon the onset of September, Chalchihuapan witnesses an average high-temperature of a still refreshing 18.2°C (64.8°F), showing a close resemblance to the prior month. During September, the average low-temperature in Chalchihuapan, Mexico, is a chilly 9.7°C (49.5°F).Humidity
The most humid month in Chalchihuapan is September, with an average relative humidity of 86%.Rainfall
In Chalchihuapan, in September, during 28 rainfall days, 224mm (8.82") of precipitation is typically accumulated. In Chalchihuapan, during the entire year, the rain falls for 211.5 days and collects up to 1407mm (55.39") of precipitation.Daylight
In September, the average length of the day is 12h and 14min.On the first day of the month, sunrise is at 6:23 am and sunset at 6:52 pm. On the last day of September, in Chalchihuapan, sunrise is at 6:28 am and sunset at 6:27 pm CST.
Sunshine
In Chalchihuapan, the average sunshine in September is 8.3h.UV index
The months with the lowest UV index in Chalchihuapan are September and October, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chalchihuapan, Mexico
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is April (22.8°C).
The month with the lowest average high temperature is January (17.2°C).
- Average low temperature in September: 9.7°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 (4.9°C).
Average pressure in September
Chalchihuapan, 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
Chalchihuapan, 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
Chalchihuapan, 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
Chalchihuapan, Mexico
- Average rainfall in September: 224mm
The wettest month (with the highest rainfall) is July (301mm).
The driest month (with the least rainfall) is December (8mm).
Average rainfall days in September
Chalchihuapan, Mexico
- Average rainfall days in September: 28 days
The month with the highest number of rainy days is August (30.8 days).
The month with the least rainy days is January (5.8 days).
Average daylight in September /
Average sunshine in September
Chalchihuapan, Mexico
- Average daylight in September: 12h and 12min
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 18min
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
Chalchihuapan, Mexico
- Average sunshine days in September: 1.1 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (0.1 days).
Average UV index in September
Chalchihuapan, Mexico
- Average UV index in September: 3
The months with the highest UV index are March and April (UV index 5).
The months with the lowest UV index are September and October (UV index 3).
Average cloud cover in September
Chalchihuapan, Mexico
- Average cloud cover in September: 46
The month with the most cloud cover is September (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 12).
Average visibility in September
Chalchihuapan, Mexico
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, May and December (10km).
The month with the lowest visibility is September (7km).
