September weather forecast
Bryson, TX

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Weather in September

September, the first month of the autumn in Bryson, is also a hot month, with an average temperature fluctuating between 86.9°F (30.5°C) and 68.2°F (20.1°C).

Temperature

With the arrival of September, Bryson experiences a modest decline in average high-temperatures, transitioning from a very hot 95.7°F (35.4°C) in August to a hot 86.9°F (30.5°C). Bryson, in the month of September, anticipates a consistent average low-temperature of 68.2°F (20.1°C).

Heat index

In September, the average heat index is estimated at a tropical 93.2°F (34°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

The average relative humidity in September is 62%.

Rainfall

In Bryson, Texas, during September, the rain falls for 12.5 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, there are 113.5 rainfall days, and 18.74" (476mm) of precipitation is accumulated.

Snowfall

In Bryson, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September, sunrise is at 7:08 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:18 pm CDT.

Sunshine

The average sunshine in September in Bryson is 8.6h.

UV index

In Bryson, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during September translates into the following guidance:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

The average high-temperature and low-temperature during September are 86.9°F (30.5°C) and 68.2°F (20.1°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 93.2°F (34°C).

What is the average humidity in September?

In Bryson, the average relative humidity in September is 62%.

How much does it rain in September?

In Bryson, in September, during 12.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow?

In Bryson, snow does not fall in April through October.

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:08 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:18 pm CDT.

How long on average sun shines in September?

In Bryson, Texas, the average sunshine duration in September is 8.6h.

How high is the UV index in September in Bryson?

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to 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
Bryson, TX

Average temperature in September - Bryson, TX
  • Average high temperature in September: 86.9°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 (54.5°F).

  • Average low temperature in September: 68.2°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37°F).

Average pressure in September
Bryson, TX

Average pressure in September - Bryson, 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 (29.88"Hg).

Average wind speed in September
Bryson, TX

Average wind speed in September - Bryson, TX
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is September (7.6mph).

Average humidity in September
Bryson, TX

Average humidity in September - Bryson, TX
  • Average humidity in September: 62%

The month with the highest relative humidity is May (70%).
The month with the lowest relative humidity is August (53%).

Average rainfall in September
Bryson, TX

Average rainfall in September - Bryson, TX
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in September
Bryson, TX

Average rainfall days in September - Bryson, TX
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in September
Bryson, TX

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

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Bryson, TX

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

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

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

Average daylight in September / Average sunshine in September - Bryson, 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 0min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in September
Bryson, TX

Average sunshine days in September - Bryson, TX
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (15 days).

Average UV index in September
Bryson, TX

Average UV index in September - Bryson, 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 2).

Average cloud cover in September
Bryson, TX

Average cloud cover in September - Bryson, TX
  • Average cloud cover in September: 27

The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in September
Bryson, TX

Average visibility in September - Bryson, 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).

Bryson, Texas, USA

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