Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the onset of September, the average high-temperature registers at a warm 29°C (84.2°F), subtly different from August's 30°C (86°F). During September, an average low-temperature of 23.1°C (73.6°F) is observed.Heat index
During September, the heat index is appraised at a sweltering 35°C (95°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.Heat index determinations are made taking into account the shade and light air movements. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. 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 are of high significance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
September is the most humid month, 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
In September, the average length of the day is 12h and 13min.On the first day of September in Santiago Jamiltepec, Mexico, sunrise is at 6:18 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 6:20 pm CST.
Sunshine
In September, the average sunshine in Santiago Jamiltepec is 8.8h.UV index
February through July and September, with an average maximum UV index of 7, are months with the highest UV index in Santiago Jamiltepec, Mexico. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
How hot does it get in Santiago Jamiltepec in September?
What is the most humid month in Santiago Jamiltepec?
What is the average humidity in September in Santiago Jamiltepec?
What is the rainiest month in Santiago Jamiltepec?
How much does it rain in Santiago Jamiltepec in September?
How many hours of daylight does Santiago Jamiltepec have in September?
When is the sunrise / sunset in September in Santiago Jamiltepec?
How many hours of sunshine does Santiago Jamiltepec have in September?
What are the months with the highest UV index in Santiago Jamiltepec?
What is the UV index intensity in September in Santiago Jamiltepec?
Average temperature in September
Santiago Jamiltepec, 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 Jamiltepec, 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 Jamiltepec, 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 Jamiltepec, 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 Jamiltepec, 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 Jamiltepec, 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 Jamiltepec, Mexico
- Average daylight in September: 12h and 1min
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 5min
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 Jamiltepec, 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 Jamiltepec, 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 Jamiltepec, 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 Jamiltepec, 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).
Santiago Jamiltepec, Mexico
Weather forecast for your location
2. Allow the app to use your location
