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 heralds a minor drop in average high-temperature, sliding from August's tropical 88.3°F (31.3°C) to a moderately hot 82.2°F (27.9°C). Throughout September, Westport's nights cool down to an average of 62.4°F (16.9°C).Heat index
The heat index in September is computed to be a tropical 87.8°F (31°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In September, the average relative humidity in Westport is 74%.Rainfall
In September, the rain falls for 12.8 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, in Westport, there are 159.6 rainfall days, and 33.07" (840mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Westport.Daylight
In Westport, North Carolina, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:08 pm EDT.
Sunshine
In Westport, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Westport is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 during September leads to these advisories:
Heed the precautions - It is counselled to guard against solar damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the temperature in September in Westport?
What is the average humidity in September in Westport?
How many days does it rain in September in Westport?
When it does not snow in Westport?
What is the average length of the day in September in Westport?
What time are sunrise and sunset in September in Westport?
How long on average sun shines in September in Westport?
How high is the UV index in September in Westport?
Average temperature in September
Westport, NC
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in September: 62.4°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Westport, NC
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Westport, NC
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Westport, NC
- Average humidity in September: 74%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are June and July (70%).
Average rainfall in September
Westport, NC
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is October (2.13").
Average rainfall days in September
Westport, NC
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in September
Westport, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Westport, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Westport, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Westport, NC
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11 days).
Average UV index in September
Westport, NC
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Westport, NC
- Average cloud cover in September: 36
The months with the most cloud cover are February, March and December (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in September
Westport, NC
- 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).
Westport, North Carolina, USA
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