September weather forecast
Denmark, ME

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Weather in September

The first month of the autumn, September, is also an agreeable month in Denmark, Maine, with an average temperature fluctuating between 49.5°F (9.7°C) and 70.3°F (21.3°C).

Temperature

September marks a gentle change in average high-temperature, declining from August's warm 77.5°F (25.3°C) to a pleasant 70.3°F (21.3°C). An average nighttime temperature of 49.5°F (9.7°C) is observed during September.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 10.5 days and accumulates 1.34" (34mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 30min.
On the first day of September in Denmark, sunrise is at 6:07 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:25 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 3 suggests this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Denmark in September?

The average high-temperature and low-temperature during September are 70.3°F (21.3°C) and 49.5°F (9.7°C) respectively.

What is the average humidity in September?

The average relative humidity in September is 79%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 10.5 days and accumulates 1.34" (34mm) of precipitation.

How many days does it rain in September?

In Denmark, in September, during 10.5 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

In Denmark, Maine, 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 30min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:07 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:25 pm EDT.

How many hours of sunshine does Denmark have in September?

In September, the average sunshine duration is 8.5h.

What is the UV index reading in September?

In September, the average daily maximum UV index in Denmark is 3. A UV Index value of 3 to 5 symbolizes 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
Denmark, ME

Average temperature in September - Denmark, ME
  • Average high temperature in September: 70.3°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in September: 49.5°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 (12.2°F).

Average pressure in September
Denmark, ME

Average pressure in September - Denmark, ME
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Denmark, ME

Average wind speed in September - Denmark, ME
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in September
Denmark, ME

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

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, May and November (77%).

Average rainfall in September
Denmark, ME

Average rainfall in September - Denmark, ME
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days in September
Denmark, ME

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

The months with the highest number of rainy days are April and July (14.3 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in September
Denmark, ME

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

The month with the highest snowfall is February (9.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Denmark, ME

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

The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 3min

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 42min).

Average sunshine days in September
Denmark, ME

Average sunshine days in September - Denmark, ME
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is April (12.3 days).

Average UV index in September
Denmark, ME

Average UV index in September - Denmark, ME
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in September
Denmark, ME

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

The months with the most cloud cover are March and April (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Denmark, ME

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

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

Denmark, Maine, USA

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