September weather forecastXochiapa, Mexico
September
Weather in September
September, the first month of the autumn in Xochiapa, is also a moderately hot month, with an average temperature fluctuating between 19.7°C (67.5°F) and 29.7°C (85.5°F).Temperature
The average high-temperature is a moderately hot 29.7°C (85.5°F) in September, hardly different from the 31.8°C (89.2°F) recorded in August. An average nighttime temperature of 19.7°C (67.5°F) is observed during September.Heat index
The heat index value during September is calculated to be a very hot 37°C (98.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
With an average relative humidity of 82%, September is the most humid month.Rainfall
The month with the most rainfall is September, when the rain falls for 23.4 days and typically aggregates up to 119mm (4.69") 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 6:08 am and sunset at 6:36 pm. On the last day of September, sunrise is at 6:13 am and sunset at 6:12 pm CST.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Xochiapa, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Xochiapa, Mexico
- Average high temperature in September: 29.7°C
The warmest month (with the highest average high temperature) is May (33.5°C).
The month with the lowest average high temperature is January (22.3°C).
- Average low temperature in September: 19.7°C
The month with the highest average low temperature is June (20.6°C).
The coldest month (with the lowest average low temperature) is January (11.8°C).
Average pressure in September
Xochiapa, Mexico
- Average pressure in September: 1014.2mbar
The month with the highest atmospheric pressure is January (1019.3mbar).
The month with the lowest atmospheric pressure is May (1012.9mbar).
Average wind speed in September
Xochiapa, Mexico
- Average wind speed in September: 5.2km/h
The windiest month (with the highest average wind speed) is April (6.7km/h).
The calmest months (with the lowest average wind speed) are November and December (4.9km/h).
Average humidity in September
Xochiapa, Mexico
- Average humidity in September: 82%
The month with the highest relative humidity is September (82%).
The month with the lowest relative humidity is April (67%).
Average rainfall in September
Xochiapa, Mexico
- Average rainfall in September: 119mm
The wettest month (with the highest rainfall) is September (119mm).
The driest month (with the least rainfall) is December (22mm).
Average rainfall days in September
Xochiapa, Mexico
- Average rainfall days in September: 23.4 days
The month with the highest number of rainy days is September (23.4 days).
The month with the least rainy days is January (11.7 days).
Average daylight in September /
Average sunshine in September
Xochiapa, 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: 8h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in September
Xochiapa, Mexico
- Average sunshine days in September: 5.5 days
The month with the most sunshine days is January (16.5 days).
The month with the least sunshine days is September (5.5 days).
Average UV index in September
Xochiapa, Mexico
- Average UV index in September: 6
The months with the highest UV index are May and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 5).
Average cloud cover in September
Xochiapa, Mexico
- Average cloud cover in September: 44
The month with the most cloud cover is September (Cloud cover 44).
The month with the least cloud cover is April (Cloud cover 31).
Average visibility in September
Xochiapa, Mexico
- Average visibility in September: 8km
The months with the highest visibility are April and May (9km).
The month with the lowest visibility is July (7km).





