August weather forecast
Prospect Harbor, ME

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Weather in August

The last month of the summer, August, is a moderately hot month in Prospect Harbor, Maine, with an average temperature fluctuating between 57.7°F (14.3°C) and 73.4°F (23°C).

Temperature

August registers as the month with the highest average temperatures, reaching 73.4°F (23°C) at its peak and 57.7°F (14.3°C) at the lowest.

Humidity

In August, the average relative humidity is 80%.

Rainfall

In Prospect Harbor, Maine, in August, it is raining for 10.4 days, with typically 1.73" (44mm) of accumulated precipitation. In Prospect Harbor, Maine, during the entire year, the rain falls for 142.1 days and collects up to 32.28" (820mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 59min.
On the first day of the month, sunrise is at 5:20 am and sunset at 7:56 pm. On the last day of August, sunrise is at 5:54 am and sunset at 7:09 pm EDT.

Sunshine

The month with the most sunshine is August, with an average of 10.1h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

August, known for its average high temperature of 73.4°F (23°C) and an average low temperature of 57.7°F (14.3°C), is the warmest month.

What are August temperatures?

The average high-temperature, in August, in Prospect Harbor, is 73.4°F (23°C), while the average low-temperature is 57.7°F (14.3°C).

What is the average humidity in August?

In Prospect Harbor, the average relative humidity in August is 80%.

How many days does it rain in August?

In Prospect Harbor, in August, during 10.4 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Prospect Harbor have in August?

In Prospect Harbor, the average day length in August is 13h and 59min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:20 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 7:09 pm EDT.

What month has the most sunshine in Prospect Harbor?

The month with the most sunshine in Prospect Harbor is August, with an average of 10.1h of sunshine.

How long on average sun shines in August?

The average sunshine duration in August is 10.1h.

When is the highest UV index?

June through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in August?

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Prospect Harbor, ME

Average temperature in August - Prospect Harbor, ME
  • Average high temperature in August: 73.4°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 August: 57.7°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 August
Prospect Harbor, ME

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

Average wind speed in August - Prospect Harbor, ME
  • Average wind speed in August: 6.3mph

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 August
Prospect Harbor, ME

Average humidity in August - Prospect Harbor, ME
  • Average humidity in August: 80%

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

Average rainfall in August
Prospect Harbor, ME

Average rainfall in August - Prospect Harbor, ME
  • Average rainfall in August: 1.73"

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 August
Prospect Harbor, ME

Average rainfall days in August - Prospect Harbor, ME
  • Average rainfall days in August: 10.4 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 August
Prospect Harbor, ME

Average snowfall in August - Prospect Harbor, ME
  • Average snowfall in August: 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 August
Prospect Harbor, ME

Average snowfall days in August - Prospect Harbor, ME
  • Average snowfall days in August: 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 August /
Average sunshine in August
Prospect Harbor, ME

Average daylight in August / Average sunshine in August - Prospect Harbor, ME
  • Average daylight in August: 14h 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 August: 10h 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 August
Prospect Harbor, ME

Average sunshine days in August - Prospect Harbor, ME
  • Average sunshine days in August: 18.7 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 August
Prospect Harbor, ME

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

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 August
Prospect Harbor, ME

Average cloud cover in August - Prospect Harbor, ME
  • Average cloud cover in August: 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 August
Prospect Harbor, ME

Average visibility in August - Prospect Harbor, ME
  • Average visibility in August: 5mi

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).

Prospect Harbor, Maine, USA

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