October weather forecast
Bar Harbor, ME

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The popular tourist spot of Bar Harbor in Maine, within the Mount Desert Island
The popular tourist spot of Bar Harbor in Maine, within the Mount Desert Island

Weather in October

October fully embraces autumn, bringing changes in both the landscape and the weather of Bar Harbor. The last fraction of snowfall for the year is recorded during this month at 0.04" (1mm). The city transforms into an artist's paradise with the autumn foliage peaking during this time. The days start becoming shorter and chillier with fall being in the air. This time of year is perfect for cozy evenings by the fire after spending the day exploring the colorful scenery.

Temperature

The onset of October comes with a shift in the average high-temperature, falling from an enjoyable 67.1°F (19.5°C) in September to a still refreshing 55.9°F (13.3°C). Bar Harbor encounters a steady low-temperature average of 45°F (7.2°C) throughout the month of October.

Humidity

In October, the average relative humidity in Bar Harbor, Maine, is 78%.

Rainfall

In Bar Harbor, during October, the rain falls for 14 days and regularly aggregates up to 3.35" (85mm) of precipitation. In Bar Harbor, during the entire year, the rain falls for 142.1 days and collects up to 32.28" (820mm) of precipitation.

Snowfall

Months with snowfall in Bar Harbor are January through May, October through December. October is the first month it typically snows in Bar Harbor. Throughout October, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Bar Harbor, during the entire year, snow falls for 48.1 days and aggregates up to 23.82" (605mm) of snow.

Ocean temperature

In October, the average ocean temperature in Bar Harbor is 53.2°F (11.8°C).
Note: Without suitable protection, venturing into 53.2°F (11.8°C) waters cooler than 50°F (10°C) can lead to pronounced cold shock and rapid breaths.

Daylight

In October, the average length of the day is 10h and 58min.
On the first day of October, sunrise is at 6:31 am and sunset at 6:13 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:23 pm EDT.

Sunshine

The average sunshine in October in Bar Harbor is 6.3h.

UV index

In Bar Harbor, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 3 in October interprets into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What is the usual temperature for Bar Harbor in October?

October temperatures vary between a high-temperature of 55.9°F (13.3°C) and a low-temperature of 45°F (7.2°C).

What is the average humidity in October in Bar Harbor?

The average relative humidity in October in Bar Harbor, Maine, is 78%.

How many days does it rain in October in Bar Harbor?

In Bar Harbor, Maine, during October, the rain falls for 14 days and regularly aggregates up to 3.35" (85mm) of precipitation.

When does it start snowing in Bar Harbor?

October is the first month it typically snows in Bar Harbor. Throughout October, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow.

What is the water temperature in October in Bar Harbor?

In Bar Harbor, Maine, in October, the average water temperature is 53.2°F (11.8°C). Swimming in 53.2°F (11.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Bar Harbor have in October?

In Bar Harbor, the average day length in October is 10h and 58min.

When are sunrise and sunset in October in Bar Harbor?

In October, on the first day of the month, sunrise is at 6:31 am and sunset at 6:13 pm. On the last day of the month, in Bar Harbor, Maine, sunrise is at 7:09 am and sunset at 5:23 pm EDT.

How many hours of sunshine does Bar Harbor have in October?

The average sunshine duration in October in Bar Harbor, Maine, is 6.3h.

How high is the UV index in October in Bar Harbor?

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

Average temperature in October
Bar Harbor, ME

Average temperature in October - Bar Harbor, ME
  • Average high temperature in October: 55.9°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 October: 45°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).

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Average pressure in October
Bar Harbor, ME

Average pressure in October - Bar Harbor, ME
  • Average pressure in October: 29.99"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 October
Bar Harbor, ME

Average wind speed in October - Bar Harbor, ME
  • Average wind speed in October: 8.9mph

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).

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Average humidity in October
Bar Harbor, ME

Average humidity in October - Bar Harbor, ME
  • Average humidity in October: 78%

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

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Average rainfall in October
Bar Harbor, ME

Average rainfall in October - Bar Harbor, ME
  • Average rainfall in October: 3.35"

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

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Average rainfall days in October
Bar Harbor, ME

Average rainfall days in October - Bar Harbor, ME
  • Average rainfall days in October: 14 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).

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Average snowfall in October
Bar Harbor, ME

Average snowfall in October - Bar Harbor, ME
  • Average snowfall in October: 0.04"

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

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Average snowfall days in October
Bar Harbor, ME

Average snowfall days in October - Bar Harbor, ME
  • Average snowfall days in October: 0.3 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).

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Average sea temperature in October
Bar Harbor, ME

Average sea temperature in October - Bar Harbor, ME
  • Average sea temperature in October: 53.3°F

The best month for swimming (with the highest average sea temperature) is August (56.8°F).
The coldest month (with the lowest average sea temperature) is March (38.6°F).

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Average daylight in October /
Average sunshine in October
Bar Harbor, ME

Average daylight in October / Average sunshine in October - Bar Harbor, ME
  • Average daylight in October: 11h and 0min

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 October: 6h and 2min

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).

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Average sunshine days in October
Bar Harbor, ME

Average sunshine days in October - Bar Harbor, ME
  • Average sunshine days in October: 14.5 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).

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Average UV index in October
Bar Harbor, ME

Average UV index in October - Bar Harbor, ME
  • Average UV index in October: 3

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 October
Bar Harbor, ME

Average cloud cover in October - Bar Harbor, ME
  • Average cloud cover in October: 44

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).

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Average visibility in October
Bar Harbor, ME

Average visibility in October - Bar Harbor, ME
  • Average visibility in October: 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).

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Bar Harbor, Maine, USA

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