September weather forecast
Maine, NY

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Weather in September

September, the first month of the autumn in Maine, is also an agreeable month, with an average temperature ranging between min 50°F (10°C) and max 69.6°F (20.9°C).

Temperature

The average high-temperature shows a slight dip in September, from August's moderately hot 76.3°F (24.6°C) to a pleasant 69.6°F (20.9°C). During September, the temperature is averaged to a low of 50°F (10°C) at night.

Humidity

In Maine, the average relative humidity in September is 81%.

Rainfall

In September, the rain falls for 13.5 days. Throughout September, 2.56" (65mm) of precipitation is accumulated. In Maine, during the entire year, the rain falls for 173.5 days and collects up to 35.67" (906mm) of precipitation.

Snowfall

In Maine, New York, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

Sunshine

The average sunshine in September in Maine, New York, is 8.4h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 3 during September leads to these advisories:
Be vigilant - Suggestions to stave off sun damage are provided. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Maine?

In September, the average high-temperature and low-temperature are 69.6°F (20.9°C) and 50°F (10°C) respectively.

What is the average humidity in September in Maine?

In September, the average relative humidity in Maine is 81%.

How much does it rain in Maine in September?

In Maine, New York, in September, it is raining for 13.5 days, with typically 2.56" (65mm) of accumulated precipitation.

When it does not snow in Maine?

June through September are months without snowfall.

Does it snow in Maine in September?

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

What is the average length of the day in September in Maine?

In Maine, the average day length in September is 12h and 28min.

When are sunrise and sunset in September in Maine?

In September, on the first day of the month, sunrise is at 6:30 am and sunset at 7:37 pm. On the last day of the month, in Maine, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

How long on average sun shines in September in Maine?

In Maine, the average sunshine duration in September is 8.4h.

What is the UV index intensity in September in Maine?

In Maine, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
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
Maine, NY

Average temperature in September - Maine, NY
  • Average high temperature in September: 69.6°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in September: 50°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
Maine, NY

Average pressure in September - Maine, NY
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Maine, NY

Average wind speed in September - Maine, NY
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in September
Maine, NY

Average humidity in September - Maine, NY
  • Average humidity in September: 81%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, May, June and July (80%).

Average rainfall in September
Maine, NY

Average rainfall in September - Maine, NY
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is June (3.58").
The driest months (with the least rainfall) are January and November (2.4").

Average rainfall days in September
Maine, NY

Average rainfall days in September - Maine, NY
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in September
Maine, NY

Average snowfall in September - Maine, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (10.87").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Maine, NY

Average snowfall days in September - Maine, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (21.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Maine, NY

Average daylight in September / Average sunshine in September - Maine, NY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

Average sunshine days in September
Maine, NY

Average sunshine days in September - Maine, NY
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (5.7 days).

Average UV index in September
Maine, NY

Average UV index in September - Maine, 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
Maine, NY

Average cloud cover in September - Maine, NY
  • Average cloud cover in September: 42

The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 39).

Average visibility in September
Maine, NY

Average visibility in September - Maine, NY
  • Average visibility in September: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

Maine, New York, USA

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