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
In September, the average high-temperature marginally drops from a sweltering 96.6°F (35.9°C) in August to a hot 88.7°F (31.5°C). During September, the average low-temperature is recorded at a pleasant 71.6°F (22°C).Heat index
September's heat index is calculated to be a sweltering 100.4°F (38°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
In Shavano Park, the average relative humidity in September is 67%.Rainfall
In Shavano Park, in September, it is raining for 15.9 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, there are 155.9 rainfall days, and 22.76" (578mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in September in Shavano Park is 12h and 20min.On the first day of September, sunrise is at 7:11 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:20 pm CDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: The UV index of 6 during September leads to these advisories:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September in Shavano Park?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Shavano Park, TX
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (61.2°F).
- Average low temperature in September: 71.6°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in September
Shavano Park, TX
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Shavano Park, TX
- Average wind speed in September: 6.4mph
The windiest months (with the highest average wind speed) are February, March, April and May (8.8mph).
The calmest month (with the lowest average wind speed) is September (6.4mph).
Average humidity in September
Shavano Park, TX
- Average humidity in September: 67%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Shavano Park, TX
- Average rainfall in September: 3.19"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in September
Shavano Park, TX
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and August (9.3 days).
Average snowfall in September
Shavano Park, TX
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Shavano Park, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Shavano Park, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Shavano Park, TX
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in September
Shavano Park, 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
Shavano Park, TX
- Average cloud cover in September: 35
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Shavano Park, 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).
Shavano Park, Texas, USA
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