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
The transition to September results in a modest reduction in average high-temperature, moving from a very hot 97.3°F (36.3°C) in August to a tropical 89.4°F (31.9°C). An average low-temperature of 72.5°F (22.5°C) is recorded during the nights in September in Brackettville.Heat index
The heat index for September is calculated to be a torrid 98.6°F (37°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely significant for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
In September, the average relative humidity in Brackettville, Texas, is 60%.Rainfall
In Brackettville, Texas, during September, the rain falls for 13.5 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Brackettville, during the entire year, the rain falls for 111.7 days and collects up to 14.25" (362mm) of precipitation.Snowfall
In Brackettville, snow does not fall in March through November.Daylight
In Brackettville, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:19 am and sunset at 8:03 pm. On the last day of September, in Brackettville, sunrise is at 7:34 am and sunset at 7:28 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Brackettville, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Brackettville in September?
What is the average humidity in September in Brackettville?
How many days does it rain in September in Brackettville?
When it does not snow in Brackettville?
How many hours of daylight does Brackettville have in September?
When are sunrise and sunset in September in Brackettville?
How long on average sun shines in September in Brackettville?
How high is the UV index in September in Brackettville?
Average temperature in September
Brackettville, TX
- Average high temperature in September: 89.4°F
The warmest month (with the highest average high temperature) is August (97.3°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in September: 72.5°F
The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).
Average pressure in September
Brackettville, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).
Average wind speed in September
Brackettville, TX
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is May (11.6mph).
The calmest month (with the lowest average wind speed) is December (7.7mph).
Average humidity in September
Brackettville, TX
- Average humidity in September: 60%
The month with the highest relative humidity is November (63%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Brackettville, TX
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Brackettville, TX
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Brackettville, TX
- Average snowfall in September: 0"
The months with the highest snowfall are January, February and December (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Brackettville, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 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
Brackettville, TX
- Average daylight in September: 12h and 2min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is November (Average sunshine: 5h and 48min).
Average sunshine days in September
Brackettville, TX
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is September (13.9 days).
Average UV index in September
Brackettville, TX
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Brackettville, TX
- Average cloud cover in September: 30
The months with the most cloud cover are March and May (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Brackettville, 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).
Brackettville, Texas, USA
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