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
In South Freeport, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's agreeable 72.3°F (22.4°C) to an enjoyable 66.6°F (19.2°C). During the month of September, an average low-temperature of 55°F (12.8°C) is recorded.Humidity
The average relative humidity in September in South Freeport is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 9 days and typically collects 0.94" (24mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In South Freeport, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:04 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:22 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
What is the driest month?
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 long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
South Freeport, ME
- Average high temperature in September: 66.6°F
The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in September: 55°F
The months with the highest average low temperature are July and August (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
South Freeport, 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
South Freeport, ME
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
South Freeport, ME
- Average humidity in September: 79%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (74%).
Average rainfall in September
South Freeport, ME
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is October (2.28").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in September
South Freeport, ME
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in September
South Freeport, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
South Freeport, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 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
South Freeport, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
South Freeport, ME
- Average sunshine days in September: 19 days
The month with the most sunshine days is September (19 days).
The month with the least sunshine days is July (14.7 days).
Average UV index in September
South Freeport, ME
- Average UV index in September: 4
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, November and December (UV index 2).
Average cloud cover in September
South Freeport, ME
- Average cloud cover in September: 31
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
South Freeport, ME
- 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).
South Freeport, Maine, USA
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