September weather forecastTehuetlán, Mexico

September

Weather in September

The first month of the autumn, September, is still a warm month in Tehuetlán, Mexico, with temperature in the range of an average low of 19.7°C (67.5°F) and an average high of 29.7°C (85.5°F).

Temperature

The dawn of September sees an average high-temperature of a moderately hot 29.7°C (85.5°F), subtly contrasting with August's 31.8°C (89.2°F). Tehuetlán anticipates an average minimum temperature of 19.7°C (67.5°F) in the month of September.

Heat index

For most parts of September, the heat index is estimated at a fiery hot 37°C (98.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

September is the most humid month, with an average relative humidity of 82%.

Rainfall

September is the month with the most rainfall. Rain falls for 23.4 days and accumulates 119mm (4.69") of precipitation.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of the month, sunrise is at 6:17 am and sunset at 6:49 pm. On the last day of September, sunrise is at 6:25 am and sunset at 6:22 pm CST.

Sunshine

In September, the average sunshine is 8.2h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Updated: Jul 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, in Tehuetlán, the average high-temperature is 29.7°C (85.5°F), and the average low-temperature is 19.7°C (67.5°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in September is estimated at 37°C (98.6°F).

The most humid month is September, with an average relative humidity of 82%.

In Tehuetlán, the average relative humidity in September is 82%.

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.

In Tehuetlán, in September, during 23.4 rainfall days, 119mm (4.69") of precipitation is typically accumulated.

In Tehuetlán, the average day length in September is 12h and 16min.

On the first day of September, sunrise is at 6:17 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 6:22 pm CST.

The average sunshine duration in September is 8.2h.

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

31.8°C

29.7°C

27.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.2km/h

5.6km/h

6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

9.1

5.5

10.7

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Tehuetlán, 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
Tehuetlán, 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
Tehuetlán, 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
Tehuetlán, 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
Tehuetlán, 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
Tehuetlán, 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
Tehuetlán, 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: 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
Tehuetlán, 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
Tehuetlán, 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).