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
In September, the average high-temperature marginally drops from a torrid 96.4°F (35.8°C) in August to a tropical 88.7°F (31.5°C). During September, an average low-temperature of 70.7°F (21.5°C) is observed.Heat index
The heat index value during September is evaluated at a sweltering 100.4°F (38°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
In Coupland, the average relative humidity in September is 67%.Rainfall
In Coupland, in September, during 14.6 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, in Coupland, there are 133.9 rainfall days, and 22.09" (561mm) of precipitation is accumulated.Snowfall
March through October and December are months without snowfall.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:15 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during September translates into the following guidance:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September in Coupland?
How high is the UV index in September?
Average temperature in September
Coupland, TX
- Average high temperature in September: 88.7°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 (58.5°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in September
Coupland, 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
Coupland, TX
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).
Average humidity in September
Coupland, TX
- Average humidity in September: 67%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Coupland, TX
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in September
Coupland, TX
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is September (14.6 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Coupland, TX
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Coupland, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.7 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Coupland, 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 24min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Coupland, TX
- Average sunshine days in September: 13 days
The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is September (13 days).
Average UV index in September
Coupland, 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
Coupland, TX
- Average cloud cover in September: 31
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Coupland, 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).
Coupland, Texas, USA
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