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 snowfall in September
- Average snowfall 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
September
Weather in September
Temperature
The onset of September brings an average high-temperature of a still moderately hot 28.2°C (82.8°F), nearly matching the August temperature. September is characterized by a distinct thermal shift, with nighttime lows averaging at an enjoyable 16°C (60.8°F).Heat index
In September, the average heat index is calculated to be a tropical 32°C (89.6°F). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
September is the most humid month, with an average relative humidity of 78%.Rainfall
September is the month with the most rainfall. Rain falls for 27 days and accumulates 158mm (6.22") of precipitation.Snowfall
September is the only month when snow falls. The month with the most snowfall in Apipilulco is September, when snow falls for 0.1 days and typically aggregates up to 1mm (0.04") of snow.Daylight
The average length of the day in September is 12h and 14min.On the first day of September, sunrise is at 6:24 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:27 pm CST.
Sunshine
In September, the average sunshine in Apipilulco is 9.2h.UV index
The average daily maximum UV index in September in Apipilulco is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Apipilulco in September?
What is the most humid month in Apipilulco?
What is the average humidity in September in Apipilulco?
What is the wettest month in Apipilulco?
How many days does it rain in September in Apipilulco?
When does it snow the most in Apipilulco?
When does it start snowing in Apipilulco?
How many hours of daylight does Apipilulco have in September?
When is the sunrise / sunset in September in Apipilulco?
How long on average sun shines in September in Apipilulco?
How high is the UV index in September in Apipilulco?
Average temperature in September
Apipilulco, Mexico
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is April (34.3°C).
The months with the lowest average high temperature are January and December (27.5°C).
- Average low temperature in September: 16°C
The month with the highest average low temperature is May (20.4°C).
The coldest month (with the lowest average low temperature) is January (13.3°C).
Average pressure in September
Apipilulco, Mexico
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is January (1016.1mbar).
The month with the lowest atmospheric pressure is May (1013mbar).
Average wind speed in September
Apipilulco, Mexico
- Average wind speed in September: 4km/h
The windiest month (with the highest average wind speed) is April (5.2km/h).
The calmest months (with the lowest average wind speed) are August and September (4km/h).
Average humidity in September
Apipilulco, Mexico
- Average humidity in September: 78%
The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is April (35%).
Average rainfall in September
Apipilulco, Mexico
- Average rainfall in September: 158mm
The wettest month (with the highest rainfall) is September (158mm).
The driest months (with the least rainfall) are January and December (4mm).
Average rainfall days in September
Apipilulco, Mexico
- Average rainfall days in September: 27 days
The month with the highest number of rainy days is August (28.2 days).
The month with the least rainy days is December (3.1 days).
Average snowfall in September
Apipilulco, Mexico
- Average snowfall in September: 1mm
The month with the highest snowfall is September (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).
Average snowfall days in September
Apipilulco, Mexico
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Apipilulco, Mexico
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are January, February, April and December (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 8h and 36min).
Average sunshine days in September
Apipilulco, Mexico
- Average sunshine days in September: 1.6 days
The month with the most sunshine days is December (26.7 days).
The month with the least sunshine days is August (1.4 days).
Average UV index in September
Apipilulco, Mexico
- Average UV index in September: 6
The months with the highest UV index are March, April and May (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 5).
Average cloud cover in September
Apipilulco, Mexico
- Average cloud cover in September: 34
The month with the most cloud cover is September (Cloud cover 34).
The months with the least cloud cover are April and December (Cloud cover 9).
Average visibility in September
Apipilulco, 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).
