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
Castle Hayne observes a minor difference in average high-temperatures between August's 86.7°F (30.4°C) and September's 82.2°F (27.9°C). The average low-temperature, in September, in Castle Hayne, is an agreeable 70.3°F (21.3°C).Heat index
Throughout September, the heat index is evaluated at a hot 87.8°F (31°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
August, September and December, with an average relative humidity of 77%, are the most humid months in Castle Hayne.Rainfall
In Castle Hayne, in September, during 17.7 rainfall days, 5.39" (137mm) of precipitation is typically accumulated. Throughout the year, in Castle Hayne, there are 182.5 rainfall days, and 41.42" (1052mm) of precipitation is accumulated.Snowfall
In Castle Hayne, snow does not fall in April through December.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:56 pm EDT.
Sunshine
The average sunshine in September in Castle Hayne, North Carolina, is 9.4h.UV index
The average daily maximum UV index in September in Castle Hayne is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What are September temperatures in Castle Hayne?
What are the most humid months in Castle Hayne?
What is the average humidity in September in Castle Hayne?
How much does it rain in Castle Hayne in September?
When it does not snow in Castle Hayne?
How many hours of daylight does Castle Hayne have in September?
When is the sunrise / sunset in September in Castle Hayne?
How many hours of sunshine does Castle Hayne have in September?
What is the UV index reading in September in Castle Hayne?
Average temperature in September
Castle Hayne, NC
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (54°F).
- Average low temperature in September: 70.3°F
The month with the highest average low temperature is July (75.4°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in September
Castle Hayne, NC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Castle Hayne, NC
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Castle Hayne, NC
- Average humidity in September: 77%
The months with the highest relative humidity are August, September and December (77%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in September
Castle Hayne, NC
- Average rainfall in September: 5.39"
The wettest month (with the highest rainfall) is August (5.59").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in September
Castle Hayne, NC
- Average rainfall days in September: 17.7 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in September
Castle Hayne, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Castle Hayne, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Castle Hayne, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Castle Hayne, NC
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is August (6.3 days).
Average UV index in September
Castle Hayne, NC
- 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, February and December (UV index 3).
Average cloud cover in September
Castle Hayne, NC
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in September
Castle Hayne, 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).
Castle Hayne, North Carolina, USA
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