September weather forecast
San Angelo, TX

Weather in September

The first month of the autumn, September, is still a hot month in San Angelo, Texas, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 69.3°F (20.7°C).

Temperature

In September, the average high-temperature marginally drops from a very hot 95.7°F (35.4°C) in August to a hot 87.4°F (30.8°C). In September, the average low-temperature is 69.3°F (20.7°C).

Heat index

The average heat index in September is appraised at a hot 93.2°F (34°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, differences in body mass, height, and shape, pregnancy, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in September in San Angelo is 57%.

Rainfall

In San Angelo, during 11.3 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In San Angelo, Texas, during the entire year, the rain falls for 89.7 days and collects up to 15.39" (391mm) of precipitation.

Snowfall

In San Angelo, Texas, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of September in San Angelo, 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 7:28 pm CDT.

Sunshine

In San Angelo, the average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September in San Angelo is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in San Angelo?

In September, in San Angelo, Texas, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 69.3°F (20.7°C). in September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 93.2°F (34°C).

What is the average humidity in September in San Angelo?

The average relative humidity in September is 57%.

How much does it rain in San Angelo in September?

In San Angelo, Texas, during September, the rain falls for 11.3 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When it does not snow in San Angelo?

In San Angelo, Texas, snow does not fall in April through October.

How many hours of daylight does San Angelo have in September?

In September, the average day length is 12h and 21min.

When is the sunrise / sunset in September in San Angelo?

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, in San Angelo, sunrise is at 7:35 am and sunset at 7:28 pm CDT.

How long on average sun shines in September in San Angelo?

In San Angelo, Texas, the average sunshine duration in September is 8.9h.

What is the UV index reading in September in San Angelo?

In September, the average daily maximum UV index in San Angelo, Texas, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
San Angelo, TX

Average temperature in September - San Angelo, TX
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is August (95.7°F).
The month with the lowest average high temperature is December (58.6°F).

  • Average low temperature in September: 69.3°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

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Average pressure in September
San Angelo, TX

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).

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Average wind speed in September
San Angelo, TX

Average wind speed in September - San Angelo, TX
  • Average wind speed in September: 9.4mph

The windiest month (with the highest average wind speed) is April (13.5mph).
The calmest month (with the lowest average wind speed) is September (9.4mph).

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Average humidity in September
San Angelo, TX

Average humidity in September - San Angelo, TX
  • Average humidity in September: 57%

The month with the highest relative humidity is November (58%).
The month with the lowest relative humidity is August (46%).

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Average rainfall in September
San Angelo, TX

Average rainfall in September - San Angelo, TX
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is October (2.4").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in September
San Angelo, TX

Average rainfall days in September - San Angelo, TX
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is May (11.6 days).
The month with the least rainy days is January (4.1 days).

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Average snowfall in September
San Angelo, TX

Average snowfall in September - San Angelo, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
San Angelo, TX

Average snowfall days in September - San Angelo, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
San Angelo, TX

Average daylight in September / Average sunshine in September - San Angelo, TX
  • Average daylight in September: 12h and 21min

The month with the longest days is June (Average daylight: 14h and 10min).
The month with the shortest days is December (Average daylight: 10h and 8min).

  • Average sunshine in September: 8h and 54min

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 24min).

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Average sunshine days in September
San Angelo, TX

Average sunshine days in September - San Angelo, TX
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is January (26 days).
The month with the least sunshine days is May (16.8 days).

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Average UV index in September
San Angelo, TX

Average UV index in September - San Angelo, 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).

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Average cloud cover in September
San Angelo, TX

Average cloud cover in September - San Angelo, TX
  • Average cloud cover in September: 27

The months with the most cloud cover are March and September (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in September
San Angelo, TX

Average visibility in September - San Angelo, 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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