September weather forecastEl Copetillo, Mexico
September
Weather in September
The first month of the autumn, September, is still a warm month in El Copetillo, Mexico, with an average temperature varying between 24°C (75.2°F) and 12.7°C (54.9°F).Temperature
With the advent of September, El Copetillo's high-temperatures adjust to a still moderately hot 24°C (75.2°F), closely aligning with the preceding month. El Copetillo's nights in September experience an average temperature drop to a fresh 12.7°C (54.9°F).Humidity
September is the most humid month in El Copetillo, Mexico, with an average relative humidity of 72%.Rainfall
In El Copetillo, in September, during 18.8 rainfall days, 62mm (2.44") of precipitation is typically accumulated. Throughout the year, in El Copetillo, there are 109.6 rainfall days, and 410mm (16.14") of precipitation is accumulated.Daylight
In El Copetillo, 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 7:04 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 is 9.5h.UV index
In El Copetillo, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, a regular UV index of 5 translates into these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
El Copetillo, Mexico
- Average high temperature in September: 24°C
The warmest month (with the highest average high temperature) is May (28.7°C).
The month with the lowest average high temperature is January (20.2°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is June (15.8°C).
The coldest month (with the lowest average low temperature) is January (7°C).
Average pressure in September
El Copetillo, Mexico
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is January (1018.3mbar).
The month with the lowest atmospheric pressure is May (1013.4mbar).
Average wind speed in September
El Copetillo, Mexico
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is April (11.5km/h).
The calmest month (with the lowest average wind speed) is July (8.8km/h).
Average humidity in September
El Copetillo, Mexico
- Average humidity in September: 72%
The month with the highest relative humidity is September (72%).
The month with the lowest relative humidity is April (29%).
Average rainfall in September
El Copetillo, Mexico
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is July (98mm).
The driest months (with the least rainfall) are March and April (5mm).
Average rainfall days in September
El Copetillo, Mexico
- Average rainfall days in September: 18.8 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is February (2.9 days).
Average daylight in September /
Average sunshine in September
El Copetillo, Mexico
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is May (Average sunshine: 9h and 48min).
The month with the least sunshine is July (Average sunshine: 9h and 18min).
Average sunshine days in September
El Copetillo, Mexico
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is December (27.2 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in September
El Copetillo, Mexico
- Average UV index in September: 5
The months with the highest UV index are April, May and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover in September
El Copetillo, Mexico
- Average cloud cover in September: 30
The month with the most cloud cover is September (Cloud cover 30).
The months with the least cloud cover are March and April (Cloud cover 11).
Average visibility in September
El Copetillo, Mexico
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).





