September weather forecast
Eastport, ME

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Weather in September

As September sets in, the vibrant colors of fall become the hallmark of Eastport. A slight drop in temperature to 63.5°F (17.5°C) along with decreasing daylight hours signals the onset of autumn. The decreasing sunshine hours yield more cloudy days. Despite the reduced sunshine, outdoor activities remain popular owing to the appealing fall foliage. The weather continues to cool down as October approaches, leading to the gradual onset of winter.

Temperature

Eastport, Maine, observes an average high-temperature of a still enjoyable 63.5°F (17.5°C) in September, barely different from 67.8°F (19.9°C) in August. Eastport documents a consistent average low-temperature of 54.5°F (12.5°C) at night during September.

Humidity

The average relative humidity in September in Eastport is 80%.

Rainfall

In September, in Eastport, the rain falls for 11 days. Throughout September, 2.09" (53mm) of precipitation is accumulated. In Eastport, during the entire year, the rain falls for 143.2 days and collects up to 29.37" (746mm) of precipitation.

Snowfall

May through September are months without snowfall in Eastport.

Ocean temperature

With an average ocean temperature of 55.4°F (13°C), September is the month with the warmest seawater.
Note: It is advised against swimming in 55.4°F (13°C) when it drops below 50°F (10°C). Such temperatures can cause extreme cold shock, leading to hyperventilation.

Daylight

In September, the average length of the day in Eastport, Maine, is 12h and 31min.
On the first day of September, sunrise is at 5:50 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 6:09 pm EDT.

Sunshine

The average sunshine in September in Eastport is 7.8h.

UV index

In Eastport, 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 unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 4 in September transforms into this advice:
Act with care - The need to guard against sun damage is communicated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

What is the temperature in September in Eastport?

During September, Eastport experiences an average high-temperature of 63.5°F (17.5°C) and a low-temperature of 54.5°F (12.5°C).

What is the average humidity in September in Eastport?

In Eastport, the average relative humidity in September is 80%.

How many days does it rain in September in Eastport?

In Eastport, Maine, during September, the rain falls for 11 days and regularly aggregates up to 2.09" (53mm) of precipitation.

When it does not snow in Eastport?

May through September are months without snowfall in Eastport.

Does it snow in Eastport in September?

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

What month is the ocean warmest in Eastport?

With an average ocean temperature of 55.4°F (13°C), September is the month with the warmest seawater in Eastport.

What is the ocean temperature in September in Eastport?

In September, the average ocean temperature is 55.4°F (13°C). Swimming in 55.4°F (13°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

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

In Eastport, the average day length in September is 12h and 31min.

When are sunrise and sunset in September in Eastport?

In September, on the first day of the month, sunrise is at 5:50 am and sunset at 7:04 pm. On the last day of the month, in Eastport, sunrise is at 6:25 am and sunset at 6:09 pm EDT.

How many hours of sunshine does Eastport have in September?

In September, the average sunshine duration in Eastport is 7.8h.

What is the UV index reading in September in Eastport?

The average daily maximum UV index in September in Eastport is 4. A UV Index of 3 to 5 symbolizes 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
Eastport, ME

Average temperature in September - Eastport, ME
  • Average high temperature in September: 63.5°F

The warmest month (with the highest average high temperature) is August (67.8°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

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Average pressure in September
Eastport, ME

Average pressure in September - Eastport, ME
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Eastport, ME

Average wind speed in September - Eastport, ME
  • Average wind speed in September: 9.3mph

The windiest month (with the highest average wind speed) is January (13.9mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).

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Average humidity in September
Eastport, ME

Average humidity in September - Eastport, ME
  • Average humidity in September: 80%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is November (77%).

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Average rainfall in September
Eastport, ME

Average rainfall in September - Eastport, ME
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is August (1.65").

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Average rainfall days in September
Eastport, ME

Average rainfall days in September - Eastport, ME
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (7.5 days).

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Average snowfall in September
Eastport, ME

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

The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Eastport, ME

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

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average sea temperature in September
Eastport, ME

Average sea temperature in September - Eastport, ME
  • Average sea temperature in September: 55.3°F

The best month for swimming (with the highest average sea temperature) is September (55.3°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).

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

Average daylight in September / Average sunshine in September - Eastport, 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: 7h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

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Average sunshine days in September
Eastport, ME

Average sunshine days in September - Eastport, ME
  • Average sunshine days in September: 17.3 days

The month with the most sunshine days is August (19.4 days).
The month with the least sunshine days is February (10.3 days).

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Average UV index in September
Eastport, ME

Average UV index in September - Eastport, ME
  • Average UV index in September: 4

The months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Eastport, ME

Average cloud cover in September - Eastport, ME
  • Average cloud cover in September: 36

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in September
Eastport, ME

Average visibility in September - Eastport, 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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Eastport, Maine, USA

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