September weather forecastSublime, TX
September
Weather in September
September, the first month of the autumn in Sublime, is still a hot month, with temperature in the range of an average high of 88.9°F (31.6°C) and an average low of 71.8°F (22.1°C).Temperature
September brings a slight decrease in temperature, down from a very hot 95.9°F (35.5°C) in August to a hot 88.9°F (31.6°C). Sublime's nighttime temperature during September is consistently averaged at an agreeable 71.8°F (22.1°C).Heat index
September's mean heat index is evaluated at a blistering 105.8°F (41°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
The average relative humidity in September is 74%.Rainfall
In September, the rain falls for 17.8 days. Throughout September, 3.31" (84mm) of precipitation is accumulated. In Sublime, during the entire year, the rain falls for 166.8 days and collects up to 28.7" (729mm) of precipitation.Snowfall
February through November are months without snowfall.Daylight
In Sublime, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:05 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:13 pm CDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Sublime, 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 exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 suggests these recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sublime, TX
- Average high temperature in September: 88.9°F
The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (61°F).
- Average low temperature in September: 71.8°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).
Average pressure in September
Sublime, 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 (29.91"Hg).
Average wind speed in September
Sublime, TX
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is September (6mph).
Average humidity in September
Sublime, TX
- Average humidity in September: 74%
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Sublime, TX
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in September
Sublime, TX
- Average rainfall days in September: 17.8 days
The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is January (11.2 days).
Average snowfall in September
Sublime, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Sublime, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Sublime, 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 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Sublime, TX
- Average sunshine days in September: 10 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Sublime, 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
Sublime, TX
- Average cloud cover in September: 36
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Sublime, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, August, September, October, November and December (6mi).
The months with the lowest visibility are March, April, May, June and July (5mi).
