September weather forecast
Bethel, ME

A wooden closed bridge with beautiful yellow and green trees on both sides in Bethel, Maine
A wooden closed bridge with beautiful yellow and green trees on both sides in Bethel, Maine

Weather in September

September, the first month of the autumn in Bethel, is still a comfortable month, with an average temperature fluctuating between 67.6°F (19.8°C) and 47.3°F (8.5°C).

Temperature

In Bethel, Maine, the average high-temperature in September slightly decreases from a moderately hot 75°F (23.9°C) in August to an enjoyable 67.6°F (19.8°C). In September, the average low-temperature is 47.3°F (8.5°C).

Humidity

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

Rainfall

September is the month with the least rainfall in Bethel. Rain falls for 11.5 days and accumulates 1.69" (43mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Bethel, the average length of the day in September is 12h and 30min.
On the first day of September, sunrise is at 6:06 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:26 pm EDT.

Sunshine

In Bethel, Maine, the average sunshine in September is 8.3h.

UV index

In Bethel, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 3 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in September in Bethel?

The average relative humidity in September in Bethel, Maine, is 80%.

What is the driest month in Bethel?

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.69" (43mm) of precipitation.

How much does it rain in Bethel in September?

In Bethel, Maine, in September, it is raining for 11.5 days, with typically 1.69" (43mm) of accumulated precipitation.

When it does not snow in Bethel?

June through September are months without snowfall in Bethel.

Does it snow in Bethel in September?

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

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

In September, the average day length in Bethel is 12h and 30min.

When is the sunrise / sunset in September in Bethel?

On the first day of September in Bethel, sunrise is at 6:06 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:26 pm EDT.

How many hours of sunshine does Bethel have in September?

In Bethel, the average sunshine duration in September is 8.3h.

What is the UV index reading in September in Bethel?

In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bethel, ME

Average temperature in September - Bethel, ME
  • Average high temperature in September: 67.6°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (23.9°F).

  • Average low temperature in September: 47.3°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10°F).

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Average pressure in September
Bethel, ME

Average pressure in September - Bethel, ME
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Bethel, ME

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

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in September
Bethel, ME

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

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (76%).

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Average rainfall in September
Bethel, ME

Average rainfall in September - Bethel, ME
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in September
Bethel, ME

Average rainfall days in September - Bethel, ME
  • Average rainfall days in September: 11.5 days

The months with the highest number of rainy days are April and May (15.3 days).
The month with the least rainy days is February (8.6 days).

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Average snowfall in September
Bethel, ME

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

The month with the highest snowfall is February (11.54").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Bethel, ME

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

The months with the highest number of snowfall days are January and February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Bethel, ME
  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 29min).
The month with the shortest days is December (Average daylight: 8h and 55min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in September
Bethel, ME

Average sunshine days in September - Bethel, ME
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is April (10.5 days).

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Average UV index in September
Bethel, ME

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

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

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Average cloud cover in September
Bethel, ME

Average cloud cover in September - Bethel, ME
  • Average cloud cover in September: 39

The month with the most cloud cover is February (Cloud cover 55).
The months with the least cloud cover are July, August and September (Cloud cover 39).

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Average visibility in September
Bethel, ME

Average visibility in September - Bethel, ME
  • Average visibility in September: 4mi

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

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