September weather forecast
Sweetwater, TX

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Weather in September

The first month of the autumn, September, is also a hot month in Sweetwater, Texas, with an average temperature fluctuating between 67.5°F (19.7°C) and 86.4°F (30.2°C).

Temperature

As August transitions to September, the average high-temperature falls from a fiery hot 95.5°F (35.3°C) to a hot 86.4°F (30.2°C). Sweetwater, during September, witnesses an average low-temperature of 67.5°F (19.7°C).

Heat index

During September, the heat index is computed to be a tropical 91.4°F (33°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. 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 quite important for babies and toddlers. 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.

Humidity

September is the most humid month, with an average relative humidity of 57%.

Rainfall

The month with the most rainfall in Sweetwater is September, when the rain falls for 11.5 days and typically aggregates up to 2.17" (55mm) of precipitation.

Snowfall

May through September are months without snowfall in Sweetwater.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 7:17 am and sunset at 8:05 pm. On the last day of September, in Sweetwater, Texas, sunrise is at 7:35 am and sunset at 7:27 pm CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

How hot is September in Sweetwater?

During September, Sweetwater experiences an average high-temperature of 86.4°F (30.2°C) and a low-temperature of 67.5°F (19.7°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is computed to be 91.4°F (33°C).

What is the most humid month in Sweetwater?

With an average relative humidity of 57%, September is the most humid month.

What is the average humidity in September in Sweetwater?

The average relative humidity in September is 57%.

What is the wettest month in Sweetwater?

September is the month with the most rainfall. Rain falls for 11.5 days and accumulates 2.17" (55mm) of precipitation.

How many days does it rain in September in Sweetwater?

In Sweetwater, during September, the rain falls for 11.5 days and regularly aggregates up to 2.17" (55mm) of precipitation.

When it does not snow in Sweetwater?

May through September are months without snowfall in Sweetwater, Texas.

Does it snow in Sweetwater in September?

In Sweetwater, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Sweetwater have in September?

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

When is the sunrise / sunset in September in Sweetwater?

In September, on the first day of the month, sunrise is at 7:17 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:27 pm CDT.

How long on average sun shines in September in Sweetwater?

In Sweetwater, Texas, the average sunshine duration in September is 8.8h.

What is the UV index reading in September in Sweetwater?

In Sweetwater, 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.
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
Sweetwater, TX

Average temperature in September - Sweetwater, TX
  • Average high temperature in September: 86.4°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is December (55.9°F).

  • Average low temperature in September: 67.5°F

The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).

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Average pressure in September
Sweetwater, TX

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in September
Sweetwater, TX

Average wind speed in September - Sweetwater, TX
  • Average wind speed in September: 10.5mph

The windiest month (with the highest average wind speed) is April (14.6mph).
The calmest month (with the lowest average wind speed) is September (10.5mph).

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Average humidity in September
Sweetwater, TX

Average humidity in September - Sweetwater, TX
  • Average humidity in September: 57%

The month with the highest relative humidity is September (57%).
The month with the lowest relative humidity is August (45%).

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Average rainfall in September
Sweetwater, TX

Average rainfall in September - Sweetwater, TX
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is September (2.17").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days in September
Sweetwater, TX

Average rainfall days in September - Sweetwater, TX
  • Average rainfall days in September: 11.5 days

The months with the highest number of rainy days are May and September (11.5 days).
The month with the least rainy days is January (3.5 days).

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Average snowfall in September
Sweetwater, TX

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

The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Sweetwater, TX

Average snowfall days in September - Sweetwater, 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 May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Sweetwater, 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 6min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in September
Sweetwater, TX

Average sunshine days in September - Sweetwater, TX
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is September (15.6 days).

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Average UV index in September
Sweetwater, TX

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

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

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Average cloud cover in September
Sweetwater, TX

Average cloud cover in September - Sweetwater, TX
  • Average cloud cover in September: 26

The months with the most cloud cover are March, September and December (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in September
Sweetwater, TX

Average visibility in September - Sweetwater, 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).

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Sweetwater, Texas, USA

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