September weather forecastNew Waverly, TX
September
Weather in September
The first month of the autumn, September, is also a hot month in New Waverly, Texas, with an average temperature fluctuating between 89.1°F (31.7°C) and 70.2°F (21.2°C).Temperature
The advent of September brings a subtle shift in temperature, with the average high moving from a torrid 95.5°F (35.3°C) in August to a tropical 89.1°F (31.7°C). In New Waverly, September nights witness a steady temperature drop to a pleasant 70.2°F (21.2°C).Heat index
The heat index in September is estimated at a blistering 105.8°F (41°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In September, the average relative humidity is 74%.Rainfall
In New Waverly, Texas, during September, the rain falls for 17.1 days and regularly aggregates up to 2.05" (52mm) of precipitation. In New Waverly, Texas, during the entire year, the rain falls for 150.2 days and collects up to 19.72" (501mm) of precipitation.Snowfall
In New Waverly, Texas, snow does not fall in February through November.Daylight
In New Waverly, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:58 am and sunset at 7:44 pm. On the last day of September, in New Waverly, sunrise is at 7:15 am and sunset at 7:08 pm CDT.
Sunshine
In New Waverly, Texas, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the UV index of 6 transforms into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
New Waverly, TX
- Average high temperature in September: 89.1°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: 70.2°F
The months with the highest average low temperature are July and August (74.5°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in September
New Waverly, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
New Waverly, TX
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is September (5.2mph).
Average humidity in September
New Waverly, TX
- Average humidity in September: 74%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
New Waverly, TX
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is March (0.98").
Average rainfall days in September
New Waverly, TX
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is September (17.1 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
New Waverly, TX
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
New Waverly, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 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
New Waverly, TX
- Average daylight in September: 12h and 18min
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 30min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
New Waverly, TX
- Average sunshine days in September: 10 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is September (10 days).
Average UV index in September
New Waverly, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
New Waverly, TX
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
New Waverly, TX
- Average visibility in September: 5mi
The months with the highest visibility are January, August, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May, June, July and September (5mi).





