September weather forecast
Kirbyville, TX

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Weather in September

September, the first month of the autumn in Kirbyville, is still a hot month, with an average temperature varying between 88.9°F (31.6°C) and 69.1°F (20.6°C).

Temperature

Kirbyville experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a hot 94.5°F (34.7°C) in August to a still tropical 88.9°F (31.6°C). Nightly temperatures in Kirbyville, Texas, drop to an average low of 69.1°F (20.6°C) in September.

Heat index

In September, the heat index is computed to be a scorching 105.8°F (41°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Kirbyville, during September, the rain falls for 16.8 days and regularly aggregates up to 3.07" (78mm) of precipitation. Throughout the year, in Kirbyville, there are 175 rainfall days, and 35.28" (896mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall in Kirbyville.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 6:52 am and sunset at 7:38 pm. On the last day of September, in Kirbyville, sunrise is at 7:08 am and sunset at 7:01 pm CDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 6 in September transforms into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

Is it hot in Kirbyville during September?

During September, Kirbyville experiences an average high-temperature of 88.9°F (31.6°C) and a low-temperature of 69.1°F (20.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 105.8°F (41°C).

What is the average humidity in September in Kirbyville?

In Kirbyville, the average relative humidity in September is 76%.

How much does it rain in Kirbyville in September?

In Kirbyville, in September, it is raining for 16.8 days, with typically 3.07" (78mm) of accumulated precipitation.

When it does not snow in Kirbyville?

March through November are months without snowfall.

How many hours of daylight does Kirbyville have in September?

The average day length in September in Kirbyville is 12h and 20min.

What time are sunrise and sunset in September in Kirbyville?

On the first day of September in Kirbyville, Texas, sunrise is at 6:52 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 7:01 pm CDT.

How long on average sun shines in September in Kirbyville?

The average sunshine duration in September is 8.9h.

What is the UV index reading in September in Kirbyville?

In Kirbyville, Texas, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average max. wind speed
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
Kirbyville, TX

Average temperature in September - Kirbyville, TX
  • Average high temperature in September: 88.9°F

The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is January (58.5°F).

  • Average low temperature in September: 69.1°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure in September
Kirbyville, TX

Average pressure in September - Kirbyville, 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 (29.93"Hg).

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Average wind speed in September
Kirbyville, TX

Average wind speed in September - Kirbyville, TX
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

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Average humidity in September
Kirbyville, TX

Average humidity in September - Kirbyville, TX
  • Average humidity in September: 76%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Kirbyville, TX

Average rainfall in September - Kirbyville, TX
  • Average rainfall in September: 3.07"

The wettest month (with the highest rainfall) is August (4.33").
The driest months (with the least rainfall) are February and November (2.13").

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Average rainfall days in September
Kirbyville, TX

Average rainfall days in September - Kirbyville, TX
  • Average rainfall days in September: 16.8 days

The month with the highest number of rainy days is August (19.8 days).
The month with the least rainy days is November (10.9 days).

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Average snowfall in September
Kirbyville, TX

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

The month with the highest snowfall is January (0.55").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Kirbyville, TX

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

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Kirbyville, 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: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in September
Kirbyville, TX

Average sunshine days in September - Kirbyville, TX
  • Average sunshine days in September: 11.9 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is August (9.4 days).

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Average UV index in September
Kirbyville, TX

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

The months with the highest UV index are May, June and July (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
Kirbyville, TX

Average cloud cover in September - Kirbyville, TX
  • Average cloud cover in September: 36

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is October (Cloud cover 33).

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Average visibility in September
Kirbyville, TX

Average visibility in September - Kirbyville, TX
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).

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Kirbyville, Texas, USA

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