September weather forecast
West Lake Hills, TX

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Weather in September

September, the first month of the autumn in West Lake Hills, is still a hot month, with an average temperature varying between 88.2°F (31.2°C) and 70.9°F (21.6°C).

Temperature

With September's onset, the weather reveals a slight temperature decrease, transitioning from a very hot 96.4°F (35.8°C) in August to a hot 88.2°F (31.2°C). The average temperature in West Lake Hills drops to an agreeable 70.9°F (21.6°C) during the night in the month of September.

Heat index

In September, the heat index is evaluated at a fiery hot 100.4°F (38°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In September, the average relative humidity in West Lake Hills is 68%.

Rainfall

In September, the rain falls for 15.1 days. Throughout September, 2.52" (64mm) of precipitation is accumulated. Throughout the year, there are 142.7 rainfall days, and 21.5" (546mm) of precipitation is accumulated.

Snowfall

In West Lake Hills, snow does not fall in March through October and December.

Daylight

In September, the average length of the day in West Lake Hills is 12h and 20min.
On the first day of the month, sunrise is at 7:08 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:17 pm CDT.

Sunshine

In September, the average sunshine is 8.4h.

UV index

In September, the average daily maximum UV index in West Lake Hills is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 6 during September morphs into the following directions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

Is it hot in West Lake Hills during September?

In West Lake Hills, in September, the average high-temperature is 88.2°F (31.2°C), and the average low-temperature is 70.9°F (21.6°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is evaluated at 100.4°F (38°C).

What is the average humidity in September in West Lake Hills?

In West Lake Hills, Texas, the average relative humidity in September is 68%.

How much does it rain in West Lake Hills in September?

In West Lake Hills, Texas, during September, the rain falls for 15.1 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in West Lake Hills?

March through October and December are months without snowfall in West Lake Hills.

How many hours of daylight does West Lake Hills have in September?

In West Lake Hills, Texas, the average day length in September is 12h and 20min.

When is the sunrise / sunset in September in West Lake Hills?

In September, on the first day of the month, sunrise is at 7:08 am and sunset at 7:53 pm. On the last day of the month, in West Lake Hills, Texas, sunrise is at 7:24 am and sunset at 7:17 pm CDT.

How long on average sun shines in September in West Lake Hills?

In September, the average sunshine duration in West Lake Hills, Texas, is 8.4h.

How high is the UV index in September in West Lake Hills?

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

Average temperature in September
West Lake Hills, TX

Average temperature in September - West Lake Hills, TX
  • Average high temperature in September: 88.2°F

The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in September: 70.9°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 (42.6°F).

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Average pressure in September
West Lake Hills, TX

Average pressure in September - West Lake Hills, 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 (29.91"Hg).

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Average wind speed in September
West Lake Hills, TX

Average wind speed in September - West Lake Hills, TX
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is March (9.2mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).

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Average humidity in September
West Lake Hills, TX

Average humidity in September - West Lake Hills, TX
  • Average humidity in September: 68%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in September
West Lake Hills, TX

Average rainfall in September - West Lake Hills, TX
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.91").

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Average rainfall days in September
West Lake Hills, TX

Average rainfall days in September - West Lake Hills, TX
  • Average rainfall days in September: 15.1 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (8.2 days).

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Average snowfall days in September
West Lake Hills, TX

Average snowfall days in September - West Lake Hills, TX
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).

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Average daylight in September /
Average sunshine in September
West Lake Hills, TX

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

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 8h and 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in September
West Lake Hills, TX

Average sunshine days in September - West Lake Hills, TX
  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in September
West Lake Hills, TX

Average UV index in September - West Lake Hills, TX
  • Average UV index in September: 6

The months with the highest UV index are 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
West Lake Hills, TX

Average cloud cover in September - West Lake Hills, TX
  • Average cloud cover in September: 32

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in September
West Lake Hills, TX

Average visibility in September - West Lake Hills, 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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West Lake Hills, Texas, USA

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