September weather forecast
El Indio, TX

Share

Weather in September

September, the first month of the autumn in El Indio, is still a hot month, with an average temperature ranging between max 90.7°F (32.6°C) and min 74.5°F (23.6°C).

Temperature

El Indio's transition into September involves a gentle shift in temperature, receding from a sweltering 99°F (37.2°C) in August to a hot 90.7°F (32.6°C). El Indio temperatures generally rest at a low of 74.5°F (23.6°C) during the September nights.

Heat index

For most parts of September, the heat index is estimated at a very hot 100.4°F (38°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in September is 58%.

Rainfall

In El Indio, in September, during 13.8 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In El Indio, during the entire year, the rain falls for 89.7 days and collects up to 13.43" (341mm) of precipitation.

Snowfall

In El Indio, snow does not fall in January through November.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:19 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:27 pm CDT.

Sunshine

In El Indio, the average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Take precautions against overexposure. Protection against sun damage is needed. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

The high-temperature during September is 90.7°F (32.6°C) and the low-temperature is 74.5°F (23.6°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 100.4°F (38°C).

What is the average humidity in September?

The average relative humidity in September is 58%.

How much does it rain in El Indio in September?

In El Indio, in September, during 13.8 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

When it does not snow in El Indio?

In El Indio, snow does not fall in January through November.

How many hours of daylight does El Indio have in September?

The average day length in September is 12h and 19min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:19 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:27 pm CDT.

How many hours of sunshine does El Indio have in September?

The average sunshine duration in September is 8.6h.

What is the UV index intensity in September?

In El Indio, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
El Indio, TX

Average temperature in September - El Indio, TX
  • Average high temperature in September: 90.7°F

The warmest month (with the highest average high temperature) is August (99°F).
The month with the lowest average high temperature is January (64.9°F).

  • Average low temperature in September: 74.5°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).

Average pressure in September
El Indio, TX

Average pressure in September - El Indio, TX
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is May (29.87"Hg).

Average wind speed in September
El Indio, TX

Average wind speed in September - El Indio, TX
  • Average wind speed in September: 9mph

The windiest month (with the highest average wind speed) is June (11.7mph).
The calmest month (with the lowest average wind speed) is December (7.7mph).

Average humidity in September
El Indio, TX

Average humidity in September - El Indio, TX
  • Average humidity in September: 58%

The month with the highest relative humidity is November (60%).
The month with the lowest relative humidity is August (47%).

Average rainfall in September
El Indio, TX

Average rainfall in September - El Indio, TX
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is May (2.95").
The driest months (with the least rainfall) are January and February (0.31").

Average rainfall days in September
El Indio, TX

Average rainfall days in September - El Indio, TX
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is September (13.8 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in September
El Indio, TX

Average snowfall in September - El Indio, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
El Indio, TX

Average snowfall days in September - El Indio, TX
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January, February and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
El Indio, TX

Average daylight in September / Average sunshine in September - El Indio, TX
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).

Average sunshine days in September
El Indio, TX

Average sunshine days in September - El Indio, TX
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is September (14.7 days).

Average UV index in September
El Indio, TX

Average UV index in September - El Indio, TX
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in September
El Indio, TX

Average cloud cover in September - El Indio, TX
  • Average cloud cover in September: 29

The month with the most cloud cover is May (Cloud cover 32).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in September
El Indio, TX

Average visibility in September - El Indio, TX
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

El Indio, Texas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location