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
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's very hot 95°F (35°C) to a hot 87.3°F (30.7°C). During the month of September, the nighttime temperature in Wimberley falls to an average of 69.4°F (20.8°C).Heat index
Throughout September, the heat index is calculated to be a very hot 98.6°F (37°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
In September, the average relative humidity in Wimberley is 70%.Rainfall
In September, in Wimberley, Texas, the rain falls for 15.9 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. In Wimberley, during the entire year, the rain falls for 138 days and collects up to 17.87" (454mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In September, the average length of the day in Wimberley, Texas, is 12h and 20min.On the first day of the month, sunrise is at 7:09 am and sunset at 7:54 pm. On the last day of September, in Wimberley, sunrise is at 7:25 am and sunset at 7:18 pm CDT.
Sunshine
In September, the average sunshine is 8.1h.UV index
The average daily maximum UV index in September in Wimberley is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 6 during September leads to these instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
How hot does it get in Wimberley in September?
What is the average humidity in September in Wimberley?
How much does it rain in Wimberley in September?
When it does not snow in Wimberley?
What is the average length of the day in September in Wimberley?
When are sunrise and sunset in September in Wimberley?
How many hours of sunshine does Wimberley have in September?
What is the UV index reading in September in Wimberley?
Average temperature in September
Wimberley, TX
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in September: 69.4°F
The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in September
Wimberley, 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 (29.9"Hg).
Average wind speed in September
Wimberley, TX
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is March (9.5mph).
The calmest month (with the lowest average wind speed) is September (6.3mph).
Average humidity in September
Wimberley, TX
- Average humidity in September: 70%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Wimberley, TX
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in September
Wimberley, TX
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is September (15.9 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in September
Wimberley, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Wimberley, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 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
Wimberley, 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 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are November and December (Average sunshine: 5h and 18min).
Average sunshine days in September
Wimberley, TX
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is January (21 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Wimberley, 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
Wimberley, TX
- Average cloud cover in September: 36
The month with the most cloud cover is May (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Wimberley, 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).
Wimberley, Texas, USA
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