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 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
September reports an average high-temperature of a still hot 30.3°C (86.5°F), slightly varied from August's 30.9°C (87.6°F). During September, Chapopotla records an average temperature of 24.3°C (75.7°F) at night.Heat index
The heat index in September is evaluated at a very hot 39°C (102.2°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Heat index determinations are made taking into account the shade and light air movements. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The average relative humidity in September is 82%.Rainfall
In Chapopotla, in September, it is raining for 26 days, with typically 139mm (5.47") of accumulated precipitation. In Chapopotla, during the entire year, the rain falls for 212.4 days and collects up to 1053mm (41.46") 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 6:03 am and sunset at 6:31 pm. On the last day of September, sunrise is at 6:07 am and sunset at 6:06 pm CST.
Sunshine
In September, the average sunshine is 8.6h.UV index
March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 7 during September translates into the following guidance:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Chapopotla have in September?
When is the highest UV index?
What is the UV index reading in September?
Average temperature in September
Chapopotla, Mexico
- Average high temperature in September: 30.3°C
The warmest month (with the highest average high temperature) is May (33.1°C).
The month with the lowest average high temperature is January (24.7°C).
- Average low temperature in September: 24.3°C
The month with the highest average low temperature is June (25.1°C).
The coldest month (with the lowest average low temperature) is January (19.3°C).
Average pressure in September
Chapopotla, Mexico
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is January (1017.5mbar).
The month with the lowest atmospheric pressure is May (1010.8mbar).
Average wind speed in September
Chapopotla, Mexico
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is January (11.3km/h).
The calmest month (with the lowest average wind speed) is September (8.5km/h).
Average humidity in September
Chapopotla, Mexico
- Average humidity in September: 82%
The months with the highest relative humidity are January and December (84%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in September
Chapopotla, Mexico
- Average rainfall in September: 139mm
The wettest month (with the highest rainfall) is October (170mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Chapopotla, Mexico
- Average rainfall days in September: 26 days
The month with the highest number of rainy days is September (26 days).
The month with the least rainy days is April (7.5 days).
Average daylight in September /
Average sunshine in September
Chapopotla, 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: 8h and 4min
The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Chapopotla, Mexico
- Average sunshine days in September: 1.8 days
The month with the most sunshine days is April (21.5 days).
The month with the least sunshine days is September (1.8 days).
Average UV index in September
Chapopotla, Mexico
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in September
Chapopotla, Mexico
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is April (Cloud cover 22).
Average visibility in September
Chapopotla, Mexico
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July and August (10km).
The months with the lowest visibility are January, February, September, October, November and December (9km).
