September weather forecastOyster Creek, TX
September
Weather in September
September, the first month of the autumn in Oyster Creek, is still a warm month, with an average temperature varying between 85.5°F (29.7°C) and 77.2°F (25.1°C).Temperature
Oyster Creek in September witnesses an average high-temperature of a warm 85.5°F (29.7°C), indicating a slight variation from August's 88.9°F (31.6°C). Oyster Creek maintains a near steady average temperature of 77.2°F (25.1°C) during the nights of September, demonstrating little drop from daytime highs.Heat index
Throughout September, the heat index is estimated at a very hot 95°F (35°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.Note that heat index values are valued for light wind and location in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
The average relative humidity in September in Oyster Creek, Texas, is 75%.Rainfall
The month with the most rainfall in Oyster Creek is September, when the rain falls for 18.7 days and typically aggregates up to 3.58" (91mm) of precipitation.Snowfall
February through December are months without snowfall in Oyster Creek.Daylight
The average length of the day in September is 12h and 19min.On the first day of September in Oyster Creek, Texas, sunrise is at 6:59 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:07 pm CDT.
Sunshine
In Oyster Creek, the average sunshine in September is 8.5h.UV index
In Oyster Creek, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Oyster Creek, TX
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (61°F).
- Average low temperature in September: 77.2°F
The month with the highest average low temperature is August (81°F).
The coldest month (with the lowest average low temperature) is January (51.4°F).
Average pressure in September
Oyster Creek, TX
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Oyster Creek, TX
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Oyster Creek, TX
- Average humidity in September: 75%
The months with the highest relative humidity are February and March (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Oyster Creek, TX
- Average rainfall in September: 3.58"
The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in September
Oyster Creek, TX
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is September (18.7 days).
The months with the least rainy days are January and February (9.4 days).
Average snowfall days in September
Oyster Creek, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Oyster Creek, TX
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 30min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Oyster Creek, TX
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is September (8.4 days).
Average UV index in September
Oyster Creek, 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 3).
Average cloud cover in September
Oyster Creek, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in September
Oyster Creek, 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).





