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's arrival aligns with a minor decrease in average high-temperatures, from August's moderately hot 77.4°F (25.2°C) to a pleasant 70°F (21.1°C). September witnesses an average nighttime temperature of 49.1°F (9.5°C) in Naples.Humidity
In September, the average relative humidity in Naples is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.54" (39mm) of precipitation.Snowfall
In Naples, Maine, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 6:06 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:24 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What are September temperatures in Naples?
What is the average humidity in September in Naples?
What is the driest month in Naples?
How much does it rain in Naples in September?
When it does not snow in Naples?
Does it snow in Naples in September?
How many hours of daylight does Naples have in September?
When are sunrise and sunset in September in Naples?
How long on average sun shines in September in Naples?
How high is the UV index in September in Naples?
Average temperature in September
Naples, ME
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in September
Naples, ME
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Naples, ME
- Average wind speed in September: 4.8mph
The windiest months (with the highest average wind speed) are March and April (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Naples, ME
- Average humidity in September: 79%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Naples, ME
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is October (3.31").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Naples, ME
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Naples, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (10.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Naples, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (12.4 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, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Naples, ME
- Average sunshine days in September: 16.7 days
The months with the most sunshine days are September and November (16.7 days).
The months with the least sunshine days are April and June (10.6 days).
Average UV index in September
Naples, ME
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Naples, ME
- Average cloud cover in September: 37
The months with the most cloud cover are February and March (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 37).
Average visibility in September
Naples, ME
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Naples, Maine, USA
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