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 advent of September brings a slight shift in average high-temperature, moving from a warm 75.9°F (24.4°C) in August to an agreeable 69.8°F (21°C). Naples experiences a mean low-temperature of 49.8°F (9.9°C) during September.Humidity
The average relative humidity in September is 81%.Rainfall
In Naples, in September, during 14.1 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, there are 153.7 rainfall days, and 25.04" (636mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:35 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:52 pm EDT.
Sunshine
The average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the UV index of 3 transforms into the following advice:
Guard yourself - Avoiding sunburn is suggested. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Naples in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Naples have in September?
How high is the UV index in September?
Average temperature in September
Naples, NY
- Average high temperature in September: 69.8°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in September
Naples, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Naples, NY
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Naples, NY
- Average humidity in September: 81%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (78%).
Average rainfall in September
Naples, NY
- Average rainfall in September: 1.73"
The wettest months (with the highest rainfall) are May and October (2.64").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in September
Naples, NY
- Average rainfall days in September: 14.1 days
The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in September
Naples, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Naples, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Naples, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).
Average sunshine days in September
Naples, NY
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in September
Naples, NY
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Naples, NY
- Average cloud cover in September: 45
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Naples, NY
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is January (4mi).
Naples, New York, USA
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