September weather forecast
Sunset, TX

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Weather in September

The first month of the autumn, September, is also a hot month in Sunset, Texas, with an average temperature varying between 86.5°F (30.3°C) and 67.8°F (19.9°C).

Temperature

The beginning of September brings a slight decrease in the average high-temperature, transitioning from a torrid 95.5°F (35.3°C) in August to a tropical 86.5°F (30.3°C). Sunset, in September, witnesses an average low-temperature of 67.8°F (19.9°C).

Heat index

The heat index in September is evaluated at a hot 93.2°F (34°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The average relative humidity in September is 64%.

Rainfall

In Sunset, during September, the rain falls for 12 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Sunset, during the entire year, the rain falls for 112.1 days and collects up to 16.3" (414mm) of precipitation.

Snowfall

April through November are months without snowfall in Sunset.

Daylight

In September, the average length of the day in Sunset is 12h and 22min.
On the first day of September in Sunset, Texas, sunrise is at 7:05 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:16 pm CDT.

Sunshine

In Sunset, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September in Sunset?

In Sunset, in September, the average high-temperature is 86.5°F (30.3°C), and the average low-temperature is 67.8°F (19.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is evaluated at 93.2°F (34°C).

What is the average humidity in September in Sunset?

The average relative humidity in September in Sunset is 64%.

How much does it rain in Sunset in September?

In Sunset, Texas, in September, it is raining for 12 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow in Sunset?

In Sunset, Texas, snow does not fall in April through November.

How many hours of daylight does Sunset have in September?

In September, the average day length in Sunset, Texas, is 12h and 22min.

When is the sunrise / sunset in September in Sunset?

In September, on the first day of the month, sunrise is at 7:05 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:16 pm CDT.

How many hours of sunshine does Sunset have in September?

The average sunshine duration in September in Sunset is 8.5h.

How high is the UV index in September in Sunset?

In September, the average daily maximum UV index in Sunset is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to 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
Sunset, TX

Average temperature in September - Sunset, TX
  • Average high temperature in September: 86.5°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The months with the lowest average high temperature are January and December (53.6°F).

  • Average low temperature in September: 67.8°F

The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

Average pressure in September
Sunset, TX

Average pressure in September - Sunset, TX
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Sunset, TX

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

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is September (7.6mph).

Average humidity in September
Sunset, TX

Average humidity in September - Sunset, TX
  • Average humidity in September: 64%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).

Average rainfall in September
Sunset, TX

Average rainfall in September - Sunset, TX
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in September
Sunset, TX

Average rainfall days in September - Sunset, TX
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in September
Sunset, TX

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

The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Sunset, TX

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

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

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

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in September
Sunset, TX

Average sunshine days in September - Sunset, TX
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (14.6 days).

Average UV index in September
Sunset, TX

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

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September
Sunset, TX

Average cloud cover in September - Sunset, TX
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in September
Sunset, TX

Average visibility in September - Sunset, 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).

Sunset, Texas, USA

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