September weather forecast
Big Lake, TX

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Weather in September

September, the first month of the autumn in Big Lake, is also a moderately hot month, with an average temperature fluctuating between 67.6°F (19.8°C) and 85.6°F (29.8°C).

Temperature

The transition into September subtly indicates a reduction in the average high-temperature, down to a warm 85.6°F (29.8°C) from August's tropical 93.6°F (34.2°C). Throughout the month of September, Big Lake observes an average nighttime temperature of 67.6°F (19.8°C).

Heat index

The heat index value during September is calculated to be a tropical 89.6°F (32°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

The months with the highest humidity are September through November, with an average relative humidity of 57%.

Rainfall

In Big Lake, during September, the rain falls for 13.2 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 94 rainfall days, and 15.16" (385mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Big Lake.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:22 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:31 pm CDT.

Sunshine

In September, the average sunshine in Big Lake, Texas, is 8.9h.

UV index

In September, the average daily maximum UV index in Big Lake is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

How hot does it get in Big Lake in September?

In Big Lake, in September, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 67.6°F (19.8°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 89.6°F (32°C).

What is the most humid month in Big Lake?

September through November, with an average relative humidity of 57%, are most humid months in Big Lake, Texas.

What is the average humidity in September in Big Lake?

In Big Lake, Texas, the average relative humidity in September is 57%.

How much does it rain in Big Lake in September?

In Big Lake, in September, during 13.2 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

When it does not snow in Big Lake?

In Big Lake, Texas, snow does not fall in April through October.

How many hours of daylight does Big Lake have in September?

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

What time are sunrise and sunset in September in Big Lake?

On the first day of September, sunrise is at 7:22 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:31 pm CDT.

How many hours of sunshine does Big Lake have in September?

In Big Lake, Texas, the average sunshine duration in September is 8.9h.

What is the UV index reading in September in Big Lake?

The average daily maximum UV index in September in Big Lake is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
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
Big Lake, TX

Average temperature in September - Big Lake, TX
  • Average high temperature in September: 85.6°F

The warmest month (with the highest average high temperature) is August (93.6°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in September: 67.6°F

The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (38.3°F).

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Average pressure in September
Big Lake, TX

Average pressure in September - Big Lake, 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
Big Lake, TX

Average wind speed in September - Big Lake, TX
  • Average wind speed in September: 11.1mph

The windiest month (with the highest average wind speed) is April (15mph).
The calmest months (with the lowest average wind speed) are September and December (11.1mph).

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Average humidity in September
Big Lake, TX

Average humidity in September - Big Lake, TX
  • Average humidity in September: 57%

The months with the highest relative humidity are September, October and November (57%).
The month with the lowest relative humidity is April (46%).

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Average rainfall in September
Big Lake, TX

Average rainfall in September - Big Lake, TX
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is May (2.32").
The driest months (with the least rainfall) are January and February (0.47").

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Average rainfall days in September
Big Lake, TX

Average rainfall days in September - Big Lake, TX
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is January (3.9 days).

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Average snowfall in September
Big Lake, TX

Average snowfall in September - Big Lake, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.83").
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
Big Lake, TX

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

The months with the highest number of snowfall days are February and December (1.5 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Big Lake, TX

Average daylight in September / Average sunshine in September - Big Lake, 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 5min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The months with the least sunshine are November and December (Average sunshine: 6h and 36min).

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Average sunshine days in September
Big Lake, TX

Average sunshine days in September - Big Lake, TX
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is January (25.5 days).
The months with the least sunshine days are May and September (14.4 days).

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Average UV index in September
Big Lake, TX

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

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

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Average cloud cover in September
Big Lake, TX

Average cloud cover in September - Big Lake, TX
  • Average cloud cover in September: 26

The months with the most cloud cover are March and September (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in September
Big Lake, TX

Average visibility in September - Big Lake, 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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Big Lake, Texas, USA

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