September weather forecast
Uvalde, TX

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Weather in September

September, the first month of the autumn in Uvalde, is still a hot month, with an average temperature fluctuating between 89.6°F (32°C) and 71.8°F (22.1°C).

Temperature

September's onset brings a negligible change in high-temperatures, falling from a sweltering 97.2°F (36.2°C) in August to a hot 89.6°F (32°C). Uvalde usually reports an average low-temperature of 71.8°F (22.1°C) during the month of September.

Heat index

Throughout September, the heat index is estimated at a torrid 100.4°F (38°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In September, the average relative humidity is 62%.

Rainfall

In Uvalde, during September, the rain falls for 15.5 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 123.9 rainfall days, and 16.42" (417mm) of precipitation is accumulated.

Snowfall

February through October and December are months without snowfall.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:17 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:25 pm CDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In Uvalde, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

Uvalde in September has an average high-temperature of 89.6°F (32°C) and an average low-temperature of 71.8°F (22.1°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 100.4°F (38°C).

What is the average humidity in September?

In Uvalde, the average relative humidity in September is 62%.

How many days does it rain in September?

In Uvalde, in September, during 15.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow?

In Uvalde, Texas, snow does not fall in February through October and December.

What is the average length of the day in September in Uvalde?

In September, the average day length is 12h and 19min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:17 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:25 pm CDT.

How many hours of sunshine does Uvalde have in September?

In September, the average sunshine duration is 8.5h.

How high is the UV index in September?

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
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
Uvalde, TX

Average temperature in September - Uvalde, TX
  • Average high temperature in September: 89.6°F

The warmest month (with the highest average high temperature) is August (97.2°F).
The month with the lowest average high temperature is January (62.4°F).

  • Average low temperature in September: 71.8°F

The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).

Average pressure in September
Uvalde, TX

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).

Average wind speed in September
Uvalde, TX

Average wind speed in September - Uvalde, TX
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is May (10.3mph).
The calmest month (with the lowest average wind speed) is December (6.9mph).

Average humidity in September
Uvalde, TX

Average humidity in September - Uvalde, TX
  • Average humidity in September: 62%

The months with the highest relative humidity are May and November (66%).
The month with the lowest relative humidity is August (53%).

Average rainfall in September
Uvalde, TX

Average rainfall in September - Uvalde, TX
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is November (0.75").

Average rainfall days in September
Uvalde, TX

Average rainfall days in September - Uvalde, TX
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is September (15.5 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in September
Uvalde, TX

Average snowfall in September - Uvalde, TX
  • Average snowfall in September: 0"

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

Average snowfall days in September
Uvalde, TX

Average snowfall days in September - Uvalde, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Uvalde, TX

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).

Average sunshine days in September
Uvalde, TX

Average sunshine days in September - Uvalde, TX
  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is September (13.4 days).

Average UV index in September
Uvalde, TX

Average UV index in September - Uvalde, TX
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in September
Uvalde, TX

Average cloud cover in September - Uvalde, TX
  • Average cloud cover in September: 31

The months with the most cloud cover are March and May (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in September
Uvalde, TX

Average visibility in September - Uvalde, 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).

Uvalde, Texas, USA

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