August weather forecast
Boothbay Harbor, ME

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Weather in August

August, the last month of the summer in Boothbay Harbor, is another warm month, with an average temperature fluctuating between 74.1°F (23.4°C) and 59.2°F (15.1°C).

Temperature

Boothbay Harbor experiences the peak of its temperatures in July and August, when the average high-temperatures rise to 74.1°F (23.4°C).

Humidity

The average relative humidity in August is 81%.

Rainfall

In August, the rain falls for 12.5 days. Throughout August, 2.28" (58mm) of precipitation is accumulated. In Boothbay Harbor, during the entire year, the rain falls for 142.1 days and collects up to 30.51" (775mm) of precipitation.

Snowfall

June through October are months without snowfall.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 62.2°F (16.8°C).
Note: Most people do not find swimming enjoyable in water of 62.2°F (16.8°C). The task of controlling breathing becomes tougher as the temperature drops from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day in August is 13h and 56min.
On the first day of August, sunrise is at 5:27 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:15 pm EDT.

Sunshine

With an average of 10.3h of sunshine, August has the most sunshine of the year.

UV index

In Boothbay Harbor, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 5 during August translates into the following guidance:
Act with care - The need to guard against sun damage is communicated. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Frequently asked questions

What are the warmest months?

July and August mark Boothbay Harbor's peak of temperatures, averaging a high-temperature of 74.1°F (23.4°C).

What is the usual temperature for Boothbay Harbor in August?

The average high-temperature, in August, in Boothbay Harbor, is 74.1°F (23.4°C), while the average low-temperature is 59.2°F (15.1°C).

What is the average humidity in August in Boothbay Harbor?

The average relative humidity in August in Boothbay Harbor is 81%.

How much does it rain in August?

In Boothbay Harbor, in August, it is raining for 12.5 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow?

In Boothbay Harbor, snow does not fall in June through October.

What is the month with the warmest ocean?

With an average ocean temperature of 62.2°F (16.8°C), August is the month with the warmest seawater.

What is the ocean temperature in August?

In August, the average ocean temperature in Boothbay Harbor is 62.2°F (16.8°C). Swimming in 62.2°F (16.8°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

What is the average length of the day in August?

In Boothbay Harbor, the average day length in August is 13h and 56min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:27 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:15 pm EDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.3h of sunshine.

How many hours of sunshine does Boothbay Harbor have in August?

The average sunshine duration in August is 10.3h.

What is the UV index reading in August?

The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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 August
Boothbay Harbor, ME

Average temperature in August - Boothbay Harbor, ME
  • Average high temperature in August: 74.1°F

The warmest months (with the highest average high temperature) are July and August (74.1°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 59.2°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in August
Boothbay Harbor, ME

Average pressure in August - Boothbay Harbor, ME
  • Average pressure in August: 29.96"Hg

The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Boothbay Harbor, ME

Average wind speed in August - Boothbay Harbor, ME
  • Average wind speed in August: 6.5mph

The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
Boothbay Harbor, ME

Average humidity in August - Boothbay Harbor, ME
  • Average humidity in August: 81%

The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (76%).

Average rainfall in August
Boothbay Harbor, ME

Average rainfall in August - Boothbay Harbor, ME
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in August
Boothbay Harbor, ME

Average rainfall days in August - Boothbay Harbor, ME
  • Average rainfall days in August: 12.5 days

The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.6 days).

Average snowfall in August
Boothbay Harbor, ME

Average snowfall in August - Boothbay Harbor, ME
  • Average snowfall in August: 0"

The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Boothbay Harbor, ME

Average snowfall days in August - Boothbay Harbor, ME
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in August
Boothbay Harbor, ME

Average sea temperature in August - Boothbay Harbor, ME
  • Average sea temperature in August: 62.2°F

The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is March (37.9°F).

Average daylight in August /
Average sunshine in August
Boothbay Harbor, ME

Average daylight in August / Average sunshine in August - Boothbay Harbor, ME
  • Average daylight in August: 13h and 5min

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 August: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days in August
Boothbay Harbor, ME

Average sunshine days in August - Boothbay Harbor, ME
  • Average sunshine days in August: 16.3 days

The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.7 days).

Average UV index in August
Boothbay Harbor, ME

Average UV index in August - Boothbay Harbor, ME
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in August
Boothbay Harbor, ME

Average cloud cover in August - Boothbay Harbor, ME
  • Average cloud cover in August: 33

The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
Boothbay Harbor, ME

Average visibility in August - Boothbay Harbor, ME
  • Average visibility in August: 6mi

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

Boothbay Harbor, Maine, USA

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