September weather forecast
Franklin, ME

Share

Weather in September

September, the first month of the autumn in Franklin, is also an agreeable month, with an average temperature fluctuating between 51.6°F (10.9°C) and 68.2°F (20.1°C).

Temperature

September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's warm 75.4°F (24.1°C) to an agreeable 68.2°F (20.1°C). Throughout the month of September, Franklin expects an average low of 51.6°F (10.9°C).

Humidity

In Franklin, the average relative humidity in September is 78%.

Rainfall

In September, the rain falls for 10.3 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. Throughout the year, in Franklin, there are 137 rainfall days, and 24.96" (634mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Franklin.

Ocean temperature

In Franklin, the average seawater temperature in September is 55.8°F (13.2°C).
Note: With an efficient thermal swimsuit, one can navigate 55.8°F (13.2°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.

Daylight

In September, the average length of the day is 12h and 31min.
On the first day of the month, sunrise is at 5:56 am and sunset at 7:09 pm. On the last day of September, in Franklin, sunrise is at 6:30 am and sunset at 6:14 pm EDT.

Sunshine

In September, the average sunshine is 8.1h.

UV index

The average daily maximum UV index in September in Franklin, Maine, is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. 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.
[Resources]

Frequently asked questions

What are the temperatures in Franklin in September?

In September, in Franklin, the average high-temperature is 68.2°F (20.1°C), and the average low-temperature is 51.6°F (10.9°C).

What is the average humidity in September in Franklin?

In September, the average relative humidity in Franklin, Maine, is 78%.

How much does it rain in Franklin in September?

In Franklin, in September, it is raining for 10.3 days, with typically 1.54" (39mm) of accumulated precipitation.

When it does not snow in Franklin?

June through September are months without snowfall in Franklin.

Does it snow in Franklin in September?

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

How cold is the water in September in Franklin?

In September, the average ocean temperature is 55.8°F (13.2°C). Swimming in 55.8°F (13.2°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Franklin have in September?

The average day length in September in Franklin, Maine, is 12h and 31min.

When is the sunrise / sunset in September in Franklin?

In September, on the first day of the month, sunrise is at 5:56 am and sunset at 7:09 pm. On the last day of the month, in Franklin, sunrise is at 6:30 am and sunset at 6:14 pm EDT.

How long on average sun shines in September in Franklin?

In Franklin, Maine, the average sunshine duration in September is 8.1h.

What is the UV index reading in September in Franklin?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat from 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
Franklin, ME

Average temperature in September - Franklin, ME
  • Average high temperature in September: 68.2°F

The warmest months (with the highest average high temperature) are July and August (75.4°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in September: 51.6°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

[Resources]

Average pressure in September
Franklin, ME

Average pressure in September - Franklin, ME
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

[Resources]

Average wind speed in September
Franklin, ME

Average wind speed in September - Franklin, ME
  • Average wind speed in September: 6.5mph

The windiest months (with the highest average wind speed) are January and March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

[Resources]

Average humidity in September
Franklin, ME

Average humidity in September - Franklin, ME
  • Average humidity in September: 78%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (76%).

[Resources]

Average rainfall in September
Franklin, ME

Average rainfall in September - Franklin, ME
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is July (1.3").

[Resources]

Average rainfall days in September
Franklin, ME

Average rainfall days in September - Franklin, ME
  • Average rainfall days in September: 10.3 days

The month with the highest number of rainy days is April (15.3 days).
The month with the least rainy days is January (6.3 days).

[Resources]

Average snowfall in September
Franklin, ME

Average snowfall in September - Franklin, ME
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.69").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in September
Franklin, ME

Average snowfall days in September - Franklin, ME
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average sea temperature in September
Franklin, ME

Average sea temperature in September - Franklin, ME
  • Average sea temperature in September: 55.6°F

The best month for swimming (with the highest average sea temperature) is August (56.8°F).
The coldest month (with the lowest average sea temperature) is March (38°F).

[Resources]

Average daylight in September /
Average sunshine in September
Franklin, ME

Average daylight in September / Average sunshine in September - Franklin, ME
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

[Resources]

Average sunshine days in September
Franklin, ME

Average sunshine days in September - Franklin, ME
  • Average sunshine days in September: 18.1 days

The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is April (11.9 days).

[Resources]

Average UV index in September
Franklin, ME

Average UV index in September - Franklin, 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).

[Resources]

Average cloud cover in September
Franklin, ME

Average cloud cover in September - Franklin, ME
  • Average cloud cover in September: 38

The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 38).

[Resources]

Average visibility in September
Franklin, ME

Average visibility in September - Franklin, ME
  • Average visibility in September: 5mi

The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).

[Resources]

Franklin, Maine, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location