September weather forecastWest Sinton, TX
September
Weather in September
September, the first month of the autumn in West Sinton, is still a tropical month, with an average temperature ranging between max 89.6°F (32°C) and min 76.5°F (24.7°C).Temperature
September notes an average high-temperature of a still tropical 89.6°F (32°C), subtly differing from August's 94.8°F (34.9°C). An average minimum temperature of 76.5°F (24.7°C) marks the month of September.Heat index
September's mean heat index is appraised at a blistering 104°F (40°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In West Sinton, the average relative humidity in September is 70%.Rainfall
The month with the most rainfall is September, when the rain falls for 16.1 days and typically aggregates up to 2.4" (61mm) of precipitation.Snowfall
In West Sinton, snow does not fall in February through December.Daylight
In West Sinton, the average length of the day in September is 12h and 19min.On the first day of September, sunrise is at 7:09 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:17 pm CDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 7 in September transforms into this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
West Sinton, TX
- Average high temperature in September: 89.6°F
The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (64.4°F).
- Average low temperature in September: 76.5°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).
Average pressure in September
West Sinton, TX
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
West Sinton, TX
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is May (11.1mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).
Average humidity in September
West Sinton, TX
- Average humidity in September: 70%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
West Sinton, TX
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is September (2.4").
The driest month (with the least rainfall) is August (0.79").
Average rainfall days in September
West Sinton, TX
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is September (16.1 days).
The month with the least rainy days is August (6.9 days).
Average snowfall in September
West Sinton, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
West Sinton, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
West Sinton, TX
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
West Sinton, TX
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is September (11.4 days).
Average UV index in September
West Sinton, TX
- Average UV index in September: 7
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in September
West Sinton, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
West Sinton, 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).





