September weather forecastChignahuapan, Mexico
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Chignahuapan, Mexico, with an average temperature ranging between min 13.7°C (56.7°F) and max 21.5°C (70.7°F).Temperature
The beginning of September records an average high-temperature of a still pleasant 21.5°C (70.7°F), almost echoing the conditions of the previous month. Chignahuapan observes an average nighttime low-temperature of 13.7°C (56.7°F) during the month of September.Humidity
September is the most humid month in Chignahuapan, Mexico, with an average relative humidity of 88%.Rainfall
In Chignahuapan, during September, the rain falls for 25.2 days and regularly aggregates up to 120mm (4.72") of precipitation. Throughout the year, in Chignahuapan, there are 237.7 rainfall days, and 963mm (37.91") of precipitation is accumulated.Snowfall
January through October and December are months without snowfall.Daylight
In Chignahuapan, the average length of the day in September is 12h and 15min.On the first day of the month, sunrise is at 6:16 am and sunset at 6:46 pm. On the last day of September, in Chignahuapan, sunrise is at 6:22 am and sunset at 6:20 pm CST.
Sunshine
In Chignahuapan, the average sunshine in September is 7h.UV index
March through September, with an average maximum UV index of 5, are months with the highest UV index in Chignahuapan, Mexico. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chignahuapan, Mexico
- Average high temperature in September: 21.5°C
The warmest month (with the highest average high temperature) is April (24.7°C).
The month with the lowest average high temperature is January (17.7°C).
- Average low temperature in September: 13.7°C
The month with the highest average low temperature is June (13.9°C).
The coldest month (with the lowest average low temperature) is January (7.9°C).
Average pressure in September
Chignahuapan, Mexico
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is May (1013.6mbar).
Average wind speed in September
Chignahuapan, Mexico
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is April (7.6km/h).
The calmest month (with the lowest average wind speed) is September (5.8km/h).
Average humidity in September
Chignahuapan, Mexico
- Average humidity in September: 88%
The month with the highest relative humidity is September (88%).
The month with the lowest relative humidity is April (69%).
Average rainfall in September
Chignahuapan, Mexico
- Average rainfall in September: 120mm
The wettest month (with the highest rainfall) is June (143mm).
The driest month (with the least rainfall) is December (23mm).
Average rainfall days in September
Chignahuapan, Mexico
- Average rainfall days in September: 25.2 days
The month with the highest number of rainy days is July (26.2 days).
The month with the least rainy days is December (14.2 days).
Average snowfall in September
Chignahuapan, Mexico
- Average snowfall in September: 0mm
The month with the highest snowfall is November (7mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Chignahuapan, Mexico
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is November (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Chignahuapan, 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: 7h and 0min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in September
Chignahuapan, Mexico
- Average sunshine days in September: 3.8 days
The month with the most sunshine days is January (11.9 days).
The month with the least sunshine days is September (3.8 days).
Average UV index in September
Chignahuapan, Mexico
- Average UV index in September: 5
The months with the highest UV index are March, April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 4).
Average cloud cover in September
Chignahuapan, Mexico
- Average cloud cover in September: 57
The month with the most cloud cover is September (Cloud cover 57).
The month with the least cloud cover is April (Cloud cover 30).
Average visibility in September
Chignahuapan, Mexico
- Average visibility in September: 7km
The month with the highest visibility is April (9km).
The month with the lowest visibility is November (6km).





