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 Lakeway, the average high-temperature in September gently drops from a fiery hot 95.5°F (35.3°C) in August to a tropical 87.8°F (31°C). The nighttime temperature dips to a pleasant 70°F (21.1°C) on average during September.Heat index
The heat index in September is calculated to be a fiery hot 98.6°F (37°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
The average relative humidity in September in Lakeway is 68%.Rainfall
In Lakeway, in September, during 15.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. Throughout the year, there are 147.3 rainfall days, and 26.3" (668mm) of precipitation is accumulated.Snowfall
In Lakeway, snow does not fall in March through December.Daylight
In Lakeway, the average length of the day in September 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, sunrise is at 7:25 am and sunset at 7:18 pm CDT.
Sunshine
In Lakeway, Texas, the average sunshine in September is 8.3h.UV index
In Lakeway, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. 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 does it get in Lakeway in September?
What is the average humidity in September in Lakeway?
How many days does it rain in September in Lakeway?
When it does not snow in Lakeway?
What is the average length of the day in September in Lakeway?
What time are sunrise and sunset in September in Lakeway?
How long on average sun shines in September in Lakeway?
What is the UV index intensity in September in Lakeway?
Average temperature in September
Lakeway, TX
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in September: 70°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (42.3°F).
Average pressure in September
Lakeway, 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 (29.91"Hg).
Average wind speed in September
Lakeway, TX
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is March (9.6mph).
The calmest month (with the lowest average wind speed) is September (6.3mph).
Average humidity in September
Lakeway, TX
- Average humidity in September: 68%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Lakeway, TX
- Average rainfall in September: 3.23"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in September
Lakeway, TX
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Lakeway, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Lakeway, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.6 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
Lakeway, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are November and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Lakeway, TX
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is September (12.4 days).
Average UV index in September
Lakeway, 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
Lakeway, TX
- Average cloud cover in September: 33
The month with the most cloud cover is May (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Lakeway, 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).
Lakeway, Texas, USA
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