September weather forecast
Surry, ME

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Weather in September

September, the first month of the autumn in Surry, is still a pleasant month, with an average temperature varying between 51.6°F (10.9°C) and 68.2°F (20.1°C).

Temperature

September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a warm 75.4°F (24.1°C) in August to a pleasant 68.2°F (20.1°C). Surry records an average nighttime low of 51.6°F (10.9°C) in September.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Surry, in September, it is raining for 10.3 days, with typically 1.54" (39mm) of accumulated precipitation. In Surry, during the entire year, the rain falls for 137 days and collects up to 24.96" (634mm) of precipitation.

Snowfall

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

Ocean temperature

In Surry, the average seawater temperature in September is 56.8°F (13.8°C).
Note: Diving into 56.8°F (13.8°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.

Daylight

The average length of the day in September is 12h and 31min.
On the first day of September in Surry, sunrise is at 5:57 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 6:16 pm EDT.

Sunshine

In September, the average sunshine is 8.1h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Exercise prevention - Precautions against solar damage are endorsed. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What are September temperatures in Surry?

An average high-temperature, in September, in Surry, 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 Surry?

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

How many days does it rain in September in Surry?

In Surry, in September, during 10.3 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

When it does not snow in Surry?

June through September are months without snowfall.

Does it snow in Surry in September?

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

What is the water temperature in September in Surry?

In Surry, the average seawater temperature in September is 56.8°F (13.8°C). Swimming in 56.8°F (13.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

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

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

When are sunrise and sunset in September in Surry?

In September, on the first day of the month, sunrise is at 5:57 am and sunset at 7:10 pm. On the last day of the month, in Surry, Maine, sunrise is at 6:31 am and sunset at 6:16 pm EDT.

How many hours of sunshine does Surry have in September?

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

How high is the UV index in September in Surry?

In Surry, Maine, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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
Surry, ME

Average temperature in September - Surry, 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).

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Average pressure in September
Surry, ME

Average pressure in September - Surry, 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).

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Average wind speed in September
Surry, ME

Average wind speed in September - Surry, 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).

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Average humidity in September
Surry, ME

Average humidity in September - Surry, 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%).

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Average rainfall in September
Surry, ME

Average rainfall in September - Surry, 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").

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Average rainfall days in September
Surry, ME

Average rainfall days in September - Surry, 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).

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Average snowfall in September
Surry, ME

Average snowfall in September - Surry, 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").

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Average snowfall days in September
Surry, ME

Average snowfall days in September - Surry, 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).

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Average sea temperature in September
Surry, ME

Average sea temperature in September - Surry, ME
  • Average sea temperature in September: 56.8°F

The best month for swimming (with the highest average sea temperature) is August (58.6°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
Surry, ME

Average daylight in September / Average sunshine in September - Surry, 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).

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Average sunshine days in September
Surry, ME

Average sunshine days in September - Surry, 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).

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Average UV index in September
Surry, ME

Average UV index in September - Surry, 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
Surry, ME

Average cloud cover in September - Surry, 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).

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Average visibility in September
Surry, ME

Average visibility in September - Surry, 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).

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Surry, Maine, USA

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