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 commencement of September notes an average high-temperature of a still tropical 88.3°F (31.3°C), exhibiting little difference from the previous month. During the nights in September, Sour Lake observes an average low-temperature of 71.1°F (21.7°C).Heat index
September's mean heat index is evaluated at a blistering 105.8°F (41°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.The standards for the heat index are set for locations in shade and under light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. 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 is 77%.Rainfall
In Sour Lake, in September, it is raining for 17.5 days, with typically 3.7" (94mm) of accumulated precipitation. In Sour Lake, during the entire year, the rain falls for 174.4 days and collects up to 35.67" (906mm) of precipitation.Snowfall
In Sour Lake, snow does not fall in February through December.Daylight
In Sour Lake, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 6:54 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 7:03 pm CDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In Sour Lake, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September in Sour Lake?
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?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Sour Lake, TX
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (93.2°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 71.1°F
The month with the highest average low temperature is July (75.6°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in September
Sour Lake, 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
Sour Lake, TX
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.3mph).
Average humidity in September
Sour Lake, TX
- Average humidity in September: 77%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Sour Lake, TX
- Average rainfall in September: 3.7"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is February (2.05").
Average rainfall days in September
Sour Lake, TX
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is August (17.8 days).
The months with the least rainy days are January and November (12.3 days).
Average snowfall in September
Sour Lake, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Sour Lake, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Sour Lake, 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: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Sour Lake, TX
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are February and June (11.1 days).
Average UV index in September
Sour Lake, 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
Sour Lake, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are August and October (Cloud cover 29).
Average visibility in September
Sour Lake, TX
- Average visibility in September: 5mi
The months with the highest visibility are January, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, March, April and September (5mi).
Sour Lake, Texas, USA
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