August weather forecast
Birch Bay, WA

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Weather in August

The last month of the summer, August, is also an agreeable month in Birch Bay, Washington, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 54.9°F (12.7°C).

Temperature

In Birch Bay, Washington, temperatures reach their average annual highs in August, measuring 70°F (21.1°C) and a minimum average of 54.9°F (12.7°C).

Humidity

The average relative humidity in August is 76%.

Rainfall

In Birch Bay, in August, during 6.1 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Birch Bay, during the entire year, the rain falls for 176.1 days and collects up to 43.78" (1112mm) of precipitation.

Snowfall

May through October are months without snowfall.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 52.7°F (11.5°C).
Note: Dipping in 52.7°F (11.5°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.

Daylight

In August, the average length of the day is 14h and 19min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:49 pm. On the last day of August, in Birch Bay, Washington, sunrise is at 6:27 am and sunset at 7:54 pm PDT.

Sunshine

The months with the most sunshine in Birch Bay are July and August, with an average of 10.4h of sunshine.

UV index

The average daily maximum UV index in August in Birch Bay, Washington, is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In August, the maximum UV index of 4 suggests this advice:
Make use of precautions - It is urged to ward off sun damage. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What is the hottest time of year in Birch Bay?

Birch Bay witnesses the warmest weather in August, with temperatures averaging a high of 70°F (21.1°C) and a low of 54.9°F (12.7°C).

What are August temperatures in Birch Bay?

In August, the average high-temperature and low-temperature are 70°F (21.1°C) and 54.9°F (12.7°C) respectively.

What is the average humidity in August in Birch Bay?

The average relative humidity in August is 76%.

How much does it rain in Birch Bay in August?

In Birch Bay, Washington, during August, the rain falls for 6.1 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow in Birch Bay?

May through October are months without snowfall.

What is the month with the warmest ocean in Birch Bay?

With an average ocean temperature of 52.7°F (11.5°C), August is the month with the warmest seawater.

What is the ocean temperature in August in Birch Bay?

In Birch Bay, Washington, in August, the average water temperature is 52.7°F (11.5°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in August in Birch Bay?

The average day length in August is 14h and 19min.

When is the sunrise / sunset in August in Birch Bay?

On the first day of August in Birch Bay, sunrise is at 5:45 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:54 pm PDT.

What are the months with the most sunshine in Birch Bay?

July and August, with an average of 10.4h of sunshine, are months with the most sunshine in Birch Bay.

How many hours of sunshine does Birch Bay have in August?

In Birch Bay, the average sunshine duration in August is 10.4h.

What is the UV index reading in August in Birch Bay?

The average daily maximum UV index in August in Birch Bay, Washington, is 4. A UV Index estimate 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Birch Bay, WA

Average temperature in August - Birch Bay, WA
  • Average high temperature in August: 70°F

The warmest month (with the highest average high temperature) is August (70°F).
The month with the lowest average high temperature is December (41.9°F).

  • Average low temperature in August: 54.9°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (35.8°F).

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Average pressure in August
Birch Bay, WA

Average pressure in August - Birch Bay, WA
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).

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Average wind speed in August
Birch Bay, WA

Average wind speed in August - Birch Bay, WA
  • Average wind speed in August: 3.9mph

The windiest months (with the highest average wind speed) are November and December (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in August
Birch Bay, WA

Average humidity in August - Birch Bay, WA
  • Average humidity in August: 76%

The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is July (74%).

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Average rainfall in August
Birch Bay, WA

Average rainfall in August - Birch Bay, WA
  • Average rainfall in August: 1.06"

The wettest month (with the highest rainfall) is November (7.13").
The driest month (with the least rainfall) is July (0.67").

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Average rainfall days in August
Birch Bay, WA

Average rainfall days in August - Birch Bay, WA
  • Average rainfall days in August: 6.1 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).

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Average snowfall in August
Birch Bay, WA

Average snowfall in August - Birch Bay, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Birch Bay, WA

Average snowfall days in August - Birch Bay, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in August
Birch Bay, WA

Average sea temperature in August - Birch Bay, WA
  • Average sea temperature in August: 52.6°F

The best months for swimming (with the highest average sea temperature) are August and September (52.6°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

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Average daylight in August /
Average sunshine in August
Birch Bay, WA

Average daylight in August / Average sunshine in August - Birch Bay, WA
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).

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Average sunshine days in August
Birch Bay, WA

Average sunshine days in August - Birch Bay, WA
  • Average sunshine days in August: 23.2 days

The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is November (8.8 days).

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Average UV index in August
Birch Bay, WA

Average UV index in August - Birch Bay, WA
  • Average UV index in August: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Birch Bay, WA

Average cloud cover in August - Birch Bay, WA
  • Average cloud cover in August: 26

The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in August
Birch Bay, WA

Average visibility in August - Birch Bay, WA
  • Average visibility in August: 6mi

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

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Birch Bay, Washington, USA

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