September weather forecastSlide, TX
September
Weather in September
September, the first month of the autumn in Slide, is also a moderately hot month, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 83.5°F (28.6°C).Temperature
Slide observes a small decrease in the average high-temperature with the arrival of September, falling from August's hot 92.1°F (33.4°C) to a warm 83.5°F (28.6°C). Throughout the month of September, Slide reports a steady low-temperature average of 63.5°F (17.5°C).Heat index
September's heat index is evaluated at a tropical 86°F (30°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.Observations indicate that the heat index values are for shady locations with light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
September is the most humid month, with an average relative humidity of 57%.Rainfall
The month with the most rainfall is September, when the rain falls for 12.5 days and typically aggregates up to 2.52" (64mm) of precipitation.Snowfall
April through September are months without snowfall in Slide.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 7:22 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:33 pm CDT.
Sunshine
In Slide, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Slide, TX
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is December (52.5°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure in September
Slide, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Slide, TX
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).
Average humidity in September
Slide, TX
- Average humidity in September: 57%
The month with the highest relative humidity is September (57%).
The month with the lowest relative humidity is April (38%).
Average rainfall in September
Slide, TX
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is September (2.52").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Slide, TX
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is September (12.5 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Slide, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Slide, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (3.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Slide, TX
- Average daylight in September: 12h and 24min
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 54min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Slide, TX
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is January (26.9 days).
The month with the least sunshine days is September (15.8 days).
Average UV index in September
Slide, 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
Slide, TX
- Average cloud cover in September: 25
The month with the most cloud cover is September (Cloud cover 25).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Slide, 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).





