September weather forecastChontalpa, Mexico
September
Weather in September
The first month of the autumn, September, is also a hot month in Chontalpa, Mexico, with an average temperature varying between 31.7°C (89.1°F) and 22.6°C (72.7°F).Temperature
Chontalpa's weather in September displays an average high-temperature of a still hot 31.7°C (89.1°F), showing minor disparity from August's 32.8°C (91°F). An average temperature of 22.6°C (72.7°F) marks the nights in September.Heat index
The heat index for September is calculated to be a burning hot 46°C (114.8°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
In September, the average relative humidity is 87%.Rainfall
In Chontalpa, in September, during 25.5 rainfall days, 158mm (6.22") of precipitation is typically accumulated. Throughout the year, in Chontalpa, there are 217.5 rainfall days, and 1264mm (49.76") of precipitation is accumulated.Daylight
In Chontalpa, the average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 5:59 am and sunset at 6:27 pm. On the last day of September, sunrise is at 6:04 am and sunset at 6:03 pm CST.
Sunshine
The average sunshine in September in Chontalpa, Mexico, is 7.5h.UV index
The average daily maximum UV index in September in Chontalpa is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chontalpa, Mexico
- Average high temperature in September: 31.7°C
The warmest month (with the highest average high temperature) is May (36.5°C).
The month with the lowest average high temperature is January (26.1°C).
- Average low temperature in September: 22.6°C
The month with the highest average low temperature is May (24°C).
The coldest month (with the lowest average low temperature) is January (17.4°C).
Average pressure in September
Chontalpa, Mexico
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is January (1017mbar).
The month with the lowest atmospheric pressure is May (1010.8mbar).
Average wind speed in September
Chontalpa, Mexico
- Average wind speed in September: 5.3km/h
The windiest months (with the highest average wind speed) are April and May (6.5km/h).
The calmest month (with the lowest average wind speed) is September (5.3km/h).
Average humidity in September
Chontalpa, Mexico
- Average humidity in September: 87%
The months with the highest relative humidity are January, November and December (88%).
The month with the lowest relative humidity is May (67%).
Average rainfall in September
Chontalpa, Mexico
- Average rainfall in September: 158mm
The wettest month (with the highest rainfall) is October (212mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Chontalpa, Mexico
- Average rainfall days in September: 25.5 days
The month with the highest number of rainy days is September (25.5 days).
The month with the least rainy days is April (11.2 days).
Average daylight in September /
Average sunshine in September
Chontalpa, Mexico
- Average daylight in September: 12h and 12min
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: 7h and 30min
The month with the most sunshine is May (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Chontalpa, Mexico
- Average sunshine days in September: 3.9 days
The month with the most sunshine days is March (17.8 days).
The month with the least sunshine days is September (3.9 days).
Average UV index in September
Chontalpa, Mexico
- Average UV index in September: 6
The months with the highest UV index are March, April, May, June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in September
Chontalpa, Mexico
- Average cloud cover in September: 56
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 30).
Average visibility in September
Chontalpa, Mexico
- Average visibility in September: 7km
The months with the highest visibility are April and May (9km).
The months with the lowest visibility are January, October, November and December (6km).
