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
West Port Arthur's September showcases an average high-temperature of a still tropical 86.9°F (30.5°C), hardly distinct from August's 91°F (32.8°C). The low-temperature averages to a warm 74.1°F (23.4°C) during the nights of September.Heat index
The heat index in September is calculated to be a torrid 100.4°F (38°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 16.5 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. In West Port Arthur, Texas, during the entire year, the rain falls for 132.6 days and collects up to 12.09" (307mm) of precipitation.Snowfall
In West Port Arthur, snow does not fall in January through November.Daylight
In West Port Arthur, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:09 am and sunset at 7:02 pm CDT.
Sunshine
In September, the average sunshine is 9.5h.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 unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 6 in September transforms into the following instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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 West Port Arthur?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does West Port Arthur have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does West Port Arthur have in September?
What is the UV index intensity in September?
Average temperature in September
West Port Arthur, TX
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 74.1°F
The month with the highest average low temperature is July (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in September
West Port Arthur, 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
West Port Arthur, TX
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
West Port Arthur, TX
- Average humidity in September: 75%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
West Port Arthur, TX
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is April (0.43").
Average rainfall days in September
West Port Arthur, TX
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is August (17.9 days).
The months with the least rainy days are January and November (7.8 days).
Average snowfall in September
West Port Arthur, TX
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
West Port Arthur, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 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
West Port Arthur, 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: 9h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
West Port Arthur, TX
- Average sunshine days in September: 10 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in September
West Port Arthur, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
West Port Arthur, TX
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in September
West Port Arthur, 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).
West Port Arthur, Texas, USA
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