September weather forecast
South Freeport, ME

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Weather in September

The first month of the autumn, September, is also an enjoyable month in South Freeport, Maine, with an average temperature ranging between min 55°F (12.8°C) and max 66.6°F (19.2°C).

Temperature

As August transitions into September, South Freeport sees a gentle drop in the average high-temperature, transitioning from an agreeable 72.3°F (22.4°C) to a comfortable 66.6°F (19.2°C). South Freeport's average low-temperature is measured at a cool 55°F (12.8°C) during September.

Humidity

In South Freeport, the average relative humidity in September is 79%.

Rainfall

The month with the least rainfall in South Freeport 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 September, the average length of the day in South Freeport is 12h and 30min.
On the first day of the month, sunrise is at 6:04 am and sunset at 7:15 pm. On the last day of September, in South Freeport, sunrise is at 6:37 am and sunset at 6:22 pm EDT.

Sunshine

In September, the average sunshine in South Freeport, Maine, is 8.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 4 during September translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

What is the temperature in September in South Freeport?

During September, South Freeport experiences an average high-temperature of 66.6°F (19.2°C) and a low-temperature of 55°F (12.8°C).

What is the average humidity in September in South Freeport?

In South Freeport, Maine, the average relative humidity in September is 79%.

What is the driest month in South Freeport?

The month with the least rainfall in South Freeport is September, when the rain falls for 9 days and typically collects 0.94" (24mm) of precipitation.

How much does it rain in South Freeport in September?

In South Freeport, Maine, during September, the rain falls for 9 days and regularly aggregates up to 0.94" (24mm) of precipitation.

When it does not snow in South Freeport?

In South Freeport, Maine, snow does not fall in May through September.

Does it snow in South Freeport in September?

In South Freeport, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in South Freeport?

In September, the average day length in South Freeport is 12h and 30min.

When are sunrise and sunset in September in South Freeport?

On the first day of September in South Freeport, 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.

How long on average sun shines in September in South Freeport?

In September, the average sunshine duration in South Freeport, Maine, is 8.7h.

What is the UV index reading in September in South Freeport?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
South Freeport, ME

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).

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Average pressure in September
South Freeport, ME

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).

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Average wind speed in September
South Freeport, ME

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).

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Average humidity in September
South Freeport, ME

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%).

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Average rainfall in September
South Freeport, ME

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").

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Average rainfall days in September
South Freeport, ME

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).

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Average snowfall in September
South Freeport, ME

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").

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Average snowfall days in September
South Freeport, ME

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).

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Average daylight in September /
Average sunshine in September
South Freeport, ME

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).

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Average sunshine days in September
South Freeport, ME

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).

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Average UV index in September
South Freeport, ME

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).

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Average cloud cover in September
South Freeport, ME

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).

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Average visibility in September
South Freeport, ME

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).

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South Freeport, Maine, USA

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