September weather forecastSantiago Yaitepec, Mexico
September
Weather in September
September, the first month of the autumn in Santiago Yaitepec, is still a warm month, with an average temperature varying between 23.1°C (73.6°F) and 29°C (84.2°F).Temperature
The advent of September observes an average high-temperature of a warm 29°C (84.2°F), nearly identical to August's 30°C (86°F). During the month of September, Santiago Yaitepec anticipates a mean low-temperature of 23.1°C (73.6°F).Heat index
For September, the heat index is appraised at a very hot 35°C (95°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The most humid month is September, with an average relative humidity of 79%.Rainfall
The month with the most rainfall is September, when the rain falls for 27.5 days and typically aggregates up to 160mm (6.3") of precipitation.Daylight
The average length of the day in September in Santiago Yaitepec is 12h and 13min.On the first day of the month, sunrise is at 6:16 am and sunset at 6:41 pm. On the last day of September, in Santiago Yaitepec, Mexico, sunrise is at 6:19 am and sunset at 6:18 pm CST.
Sunshine
The average sunshine in September is 8.8h.UV index
The months with the highest UV index are February through July and September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 7 in September translates into this advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santiago Yaitepec, Mexico
- Average high temperature in September: 29°C
The warmest month (with the highest average high temperature) is May (30.9°C).
The month with the lowest average high temperature is January (28.9°C).
- Average low temperature in September: 23.1°C
The month with the highest average low temperature is May (24.6°C).
The coldest months (with the lowest average low temperature) are January and December (21°C).
Average pressure in September
Santiago Yaitepec, Mexico
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is January (1014.2mbar).
The month with the lowest atmospheric pressure is May (1011.5mbar).
Average wind speed in September
Santiago Yaitepec, Mexico
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is April (8.9km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).
Average humidity in September
Santiago Yaitepec, Mexico
- Average humidity in September: 79%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is March (63%).
Average rainfall in September
Santiago Yaitepec, Mexico
- Average rainfall in September: 160mm
The wettest month (with the highest rainfall) is September (160mm).
The driest month (with the least rainfall) is December (2mm).
Average rainfall days in September
Santiago Yaitepec, Mexico
- Average rainfall days in September: 27.5 days
The month with the highest number of rainy days is September (27.5 days).
The months with the least rainy days are January and February (3.1 days).
Average daylight in September /
Average sunshine in September
Santiago Yaitepec, Mexico
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).
Average sunshine days in September
Santiago Yaitepec, Mexico
- Average sunshine days in September: 0.9 days
The month with the most sunshine days is December (26 days).
The month with the least sunshine days is September (0.9 days).
Average UV index in September
Santiago Yaitepec, Mexico
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July and September (UV index 7).
The months with the lowest UV index are January, August, October, November and December (UV index 6).
Average cloud cover in September
Santiago Yaitepec, Mexico
- Average cloud cover in September: 37
The month with the most cloud cover is September (Cloud cover 37).
The months with the least cloud cover are February and December (Cloud cover 9).
Average visibility in September
Santiago Yaitepec, Mexico
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
