Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A moderate decline in average high-temperatures is noted in September, moving from a fiery hot 96.8°F (36°C) in August to a hot 88.9°F (31.6°C). In Bastrop, an average temperature of 71.1°F (21.7°C) is noted during September nights.Heat index
The heat index for September is computed to be a fiery hot 102.2°F (39°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.Heat index determinations are made taking into account the shade and light air movements. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
In September, the average relative humidity is 70%.Rainfall
In Bastrop, in September, during 15.5 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, in Bastrop, there are 141.3 rainfall days, and 18.86" (479mm) of precipitation is accumulated.Snowfall
In Bastrop, snow does not fall in February through November.Daylight
The average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:06 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:15 pm CDT.
Sunshine
In Bastrop, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Bastrop is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the UV index of 6 transforms into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Bastrop during September?
What is the average humidity in September in Bastrop?
How many days does it rain in September in Bastrop?
When it does not snow in Bastrop?
What is the average length of the day in September in Bastrop?
What time are sunrise and sunset in September in Bastrop?
How long on average sun shines in September in Bastrop?
What is the UV index intensity in September in Bastrop?
Average temperature in September
Bastrop, TX
- Average high temperature in September: 88.9°F
The warmest month (with the highest average high temperature) is August (96.8°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in September: 71.1°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure in September
Bastrop, 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 (29.92"Hg).
Average wind speed in September
Bastrop, TX
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest month (with the lowest average wind speed) is September (6mph).
Average humidity in September
Bastrop, TX
- Average humidity in September: 70%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Bastrop, TX
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in September
Bastrop, TX
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is September (15.5 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in September
Bastrop, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Bastrop, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Bastrop, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Bastrop, TX
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in September
Bastrop, 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).
Average cloud cover in September
Bastrop, TX
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Bastrop, 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).
Bastrop, Texas, USA
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