September weather forecast
Gouldsboro, ME

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Weather in September

The first month of the autumn, September, is still a refreshing month in Gouldsboro, Maine, with an average temperature fluctuating between 67.1°F (19.5°C) and 52.7°F (11.5°C).

Temperature

In Gouldsboro, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's moderately hot 73.4°F (23°C) to an enjoyable 67.1°F (19.5°C). An average low-temperature of 52.7°F (11.5°C) is observed during September nights.

Humidity

The average relative humidity in September is 79%.

Rainfall

In September, the rain falls for 10.5 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 142.1 rainfall days, and 32.28" (820mm) of precipitation is accumulated.

Snowfall

In Gouldsboro, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 31min.
On the first day of September, sunrise is at 5:55 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:14 pm EDT.

Sunshine

In Gouldsboro, the average sunshine in September is 8.2h.

UV index

In Gouldsboro, 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 ordinary individuals.
Note: The maximum UV index of 4 during September translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

September temperatures vary between a high-temperature of 67.1°F (19.5°C) and a low-temperature of 52.7°F (11.5°C).

What is the average humidity in September?

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

How many days does it rain in September?

In Gouldsboro, in September, during 10.5 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow?

In Gouldsboro, snow does not fall in June through September.

Does it snow in Gouldsboro in September?

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

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 5:55 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:14 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.2h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Gouldsboro, ME

Average temperature in September - Gouldsboro, ME
  • Average high temperature in September: 67.1°F

The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in September
Gouldsboro, ME

Average pressure in September - Gouldsboro, 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).

Average wind speed in September
Gouldsboro, ME

Average wind speed in September - Gouldsboro, ME
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in September
Gouldsboro, ME

Average humidity in September - Gouldsboro, ME
  • Average humidity in September: 79%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).

Average rainfall in September
Gouldsboro, ME

Average rainfall in September - Gouldsboro, ME
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (1.57").

Average rainfall days in September
Gouldsboro, ME

Average rainfall days in September - Gouldsboro, ME
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is February (7.5 days).

Average snowfall in September
Gouldsboro, ME

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

The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Gouldsboro, ME

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

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Gouldsboro, 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: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

Average sunshine days in September
Gouldsboro, ME

Average sunshine days in September - Gouldsboro, ME
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is April (11.2 days).

Average UV index in September
Gouldsboro, ME

Average UV index in September - Gouldsboro, 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).

Average cloud cover in September
Gouldsboro, ME

Average cloud cover in September - Gouldsboro, ME
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 35).

Average visibility in September
Gouldsboro, ME

Average visibility in September - Gouldsboro, ME
  • Average visibility in September: 6mi

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

Gouldsboro, Maine, USA

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