September weather forecastChontla, Mexico
September
Weather in September
September, the first month of the autumn in Chontla, is still a tropical month, with an average temperature varying between 21.5°C (70.7°F) and 31.1°C (88°F).Temperature
September's weather displays an average high-temperature of a still hot 31.1°C (88°F), slightly varied from August's 32.8°C (91°F). Nighttime temperatures hover around an average low of 21.5°C (70.7°F) in September.Heat index
The heat index value during September is appraised at a scorching 42°C (107.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In September, the average relative humidity in Chontla, Mexico, is 82%.Rainfall
In September, the rain falls for 22.3 days. Throughout September, 138mm (5.43") of precipitation is accumulated. In Chontla, during the entire year, the rain falls for 189.2 days and collects up to 941mm (37.05") of precipitation.Daylight
In September, the average length of the day in Chontla is 12h and 16min.On the first day of September, sunrise is at 6:15 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 6:20 pm CST.
Sunshine
In September, the average sunshine in Chontla is 7.7h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chontla, Mexico
- Average high temperature in September: 31.1°C
The warmest month (with the highest average high temperature) is May (33.3°C).
The month with the lowest average high temperature is January (23.2°C).
- Average low temperature in September: 21.5°C
The month with the highest average low temperature is June (22.1°C).
The coldest month (with the lowest average low temperature) is January (14.1°C).
Average pressure in September
Chontla, Mexico
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is January (1019mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).
Average wind speed in September
Chontla, Mexico
- Average wind speed in September: 6.1km/h
The windiest months (with the highest average wind speed) are April and May (6.7km/h).
The calmest month (with the lowest average wind speed) is December (5.5km/h).
Average humidity in September
Chontla, Mexico
- Average humidity in September: 82%
The month with the highest relative humidity is December (85%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Chontla, Mexico
- Average rainfall in September: 138mm
The wettest month (with the highest rainfall) is October (166mm).
The driest month (with the least rainfall) is December (27mm).
Average rainfall days in September
Chontla, Mexico
- Average rainfall days in September: 22.3 days
The months with the highest number of rainy days are August and September (22.3 days).
The month with the least rainy days is April (10.5 days).
Average daylight in September /
Average sunshine in September
Chontla, Mexico
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is November (Average sunshine: 4h and 54min).
Average sunshine days in September
Chontla, Mexico
- Average sunshine days in September: 6.2 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is September (6.2 days).
Average UV index in September
Chontla, Mexico
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Chontla, Mexico
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Chontla, Mexico
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August and September (8km).
The month with the lowest visibility is December (6km).
