September weather forecastMapastepec, Mexico
September
Weather in September
The first month of the autumn, September, is also a hot month in Mapastepec, Mexico, with an average temperature ranging between max 30.1°C (86.2°F) and min 23.8°C (74.8°F).Temperature
The arrival of September marks a slight shift to an average high-temperature of a still hot 30.1°C (86.2°F) from August's 30.7°C (87.3°F). In Mapastepec, the nighttime temperature averages to a moderately hot 23.8°C (74.8°F) during September.Heat index
The average heat index in September is appraised at a sweltering 37°C (98.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In Mapastepec, the average relative humidity in September is 75%.Rainfall
In Mapastepec, during September, the rain falls for 27.6 days and regularly aggregates up to 167mm (6.57") of precipitation. In Mapastepec, Mexico, during the entire year, the rain falls for 226.8 days and collects up to 1216mm (47.87") of precipitation.Daylight
In September, the average length of the day is 12h and 13min.On the first day of the month, sunrise is at 5:59 am and sunset at 6:23 pm. On the last day of September, in Mapastepec, sunrise is at 6:01 am and sunset at 6:01 pm CST.
Sunshine
In Mapastepec, the average sunshine in September is 11h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Mapastepec are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 7 during September translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mapastepec, Mexico
- Average high temperature in September: 30.1°C
The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (29.7°C).
- Average low temperature in September: 23.8°C
The month with the highest average low temperature is May (25.1°C).
The coldest months (with the lowest average low temperature) are January and December (22.2°C).
Average pressure in September
Mapastepec, Mexico
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is October (1011.6mbar).
Average wind speed in September
Mapastepec, Mexico
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is March (8.1km/h).
The calmest month (with the lowest average wind speed) is November (6.4km/h).
Average humidity in September
Mapastepec, Mexico
- Average humidity in September: 75%
The month with the highest relative humidity is October (76%).
The months with the lowest relative humidity are January, February and March (63%).
Average rainfall in September
Mapastepec, Mexico
- Average rainfall in September: 167mm
The wettest month (with the highest rainfall) is May (244mm).
The driest month (with the least rainfall) is January (6mm).
Average rainfall days in September
Mapastepec, Mexico
- Average rainfall days in September: 27.6 days
The month with the highest number of rainy days is May (29.1 days).
The month with the least rainy days is January (3.9 days).
Average daylight in September /
Average sunshine in September
Mapastepec, Mexico
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 11h and 0min
The months with the most sunshine are May and July (Average sunshine: 11h and 12min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).
Average sunshine days in September
Mapastepec, Mexico
- Average sunshine days in September: 1.5 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (0.6 days).
Average UV index in September
Mapastepec, Mexico
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Mapastepec, Mexico
- Average cloud cover in September: 35
The month with the most cloud cover is June (Cloud cover 36).
The months with the least cloud cover are January and December (Cloud cover 11).
Average visibility in September
Mapastepec, Mexico
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (10km).
The months with the lowest visibility are May and August (9km).
