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 ushers in a minor alteration in Port Royal's climate, with the average high-temperature moving from August's warm 84.6°F (29.2°C) to a still moderately hot 78.3°F (25.7°C). During September nights, Port Royal witnesses a consistent average temperature of 58.6°F (14.8°C).Humidity
The months with the lowest humidity are August through October, with an average relative humidity of 75%.Rainfall
The month with the least rainfall in Port Royal is September, when the rain falls for 14.6 days and typically collects 2.13" (54mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Port Royal, the average length of the day in September is 12h and 25min.On the first day of September in Port Royal, sunrise is at 7:10 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:24 pm EDT.
Sunshine
In Port Royal, the average sunshine in September is 8.3h.UV index
In Port Royal, Kentucky, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, a regular UV index of 5 translates into these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What are September temperatures in Port Royal?
What is the least humid month in Port Royal?
What is the average humidity in September in Port Royal?
What is the driest month in Port Royal?
How many days does it rain in September in Port Royal?
When it does not snow in Port Royal?
What is the average length of the day in September in Port Royal?
When are sunrise and sunset in September in Port Royal?
How many hours of sunshine does Port Royal have in September?
What is the UV index intensity in September in Port Royal?
Average temperature in September
Port Royal, KY
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Port Royal, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Port Royal, KY
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in September
Port Royal, KY
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).
Average rainfall in September
Port Royal, KY
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is April (4.06").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in September
Port Royal, KY
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in September
Port Royal, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Port Royal, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Port Royal, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Port Royal, KY
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in September
Port Royal, KY
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Port Royal, KY
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Port Royal, KY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May, July and December (5mi).
Port Royal, Kentucky, USA
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