August weather forecast
Federal Way, WA

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Weather in August

The curtain of August descends keeping up with the warm template of summer set in July. Warm breezes mingle around Federal Way, preserving the heartiness of the Summer season. August carries the flame of cloudless skies with the least cloud cover of 25% throughout the month providing ample sunshine. Despite the dwindling daylight hours, a still-significant stretch of 14.2 hours illuminates the city extensively. The wind's song remains subdued, humming around 3.5mph (5.6km/h), marking a peaceful close to the summer chapter.

Temperature

Federal Way records the warmest temperatures in August, averaging a high of 77.5°F (25.3°C) and a low of 52.9°F (11.6°C).

Humidity

In August, the average relative humidity is 69%.

Rainfall

In Federal Way, Washington, during August, the rain falls for 5.9 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Federal Way, during the entire year, the rain falls for 177.2 days and collects up to 30.79" (782mm) of precipitation.

Snowfall

In Federal Way, snow does not fall in May through October.

Daylight

In Federal Way, the average length of the day in August is 14h and 11min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:42 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:50 pm PDT.

Sunshine

With an average of 10.9h of sunshine, August has the most sunshine of the year.

UV index

In August, the average daily maximum UV index in Federal Way is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index, 4 during August, leads to the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. 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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Frequently asked questions

What part of the year is the hottest in Federal Way?

Federal Way records the warmest temperatures in August, averaging a high of 77.5°F (25.3°C) and a low of 52.9°F (11.6°C).

What are August temperatures in Federal Way?

The high-temperature, in August, in Federal Way, is 77.5°F (25.3°C), while the low-temperature averages to 52.9°F (11.6°C).

What is the average humidity in August in Federal Way?

In Federal Way, the average relative humidity in August is 69%.

How much does it rain in Federal Way in August?

In August, in Federal Way, the rain falls for 5.9 days. Throughout August, 0.63" (16mm) of precipitation is accumulated.

When it does not snow in Federal Way?

In Federal Way, Washington, snow does not fall in May through October.

What is the average length of the day in August in Federal Way?

The average day length in August is 14h and 11min.

When are sunrise and sunset in August in Federal Way?

On the first day of August in Federal Way, Washington, sunrise is at 5:48 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:50 pm PDT.

What month has the most sunshine in Federal Way?

August has the most sunshine of the year in Federal Way, Washington, with an average of 10.9h of sunshine.

How long on average sun shines in August in Federal Way?

The average sunshine duration in August is 10.9h.

How high is the UV index in August in Federal Way?

The average daily maximum UV index in August in Federal Way is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average wind speed gusts
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
Federal Way, WA

Average temperature in August - Federal Way, WA
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in August: 52.9°F

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

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Average pressure in August
Federal Way, WA

Average pressure in August - Federal Way, WA
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

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Average wind speed in August
Federal Way, WA

Average wind speed in August - Federal Way, WA
  • Average wind speed in August: 3.5mph

The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).

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Average humidity in August
Federal Way, WA

Average humidity in August - Federal Way, WA
  • Average humidity in August: 69%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is July (68%).

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Average rainfall in August
Federal Way, WA

Average rainfall in August - Federal Way, WA
  • Average rainfall in August: 0.63"

The wettest month (with the highest rainfall) is December (4.72").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in August
Federal Way, WA

Average rainfall days in August - Federal Way, WA
  • Average rainfall days in August: 5.9 days

The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (5.9 days).

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Average snowfall in August
Federal Way, WA

Average snowfall in August - Federal Way, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Federal Way, WA

Average snowfall days in August - Federal Way, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Federal Way, WA

Average daylight in August / Average sunshine in August - Federal Way, WA
  • Average daylight in August: 14h and 1min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in August: 10h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

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Average sunshine days in August
Federal Way, WA

Average sunshine days in August - Federal Way, WA
  • Average sunshine days in August: 22.8 days

The month with the most sunshine days is August (22.8 days).
The months with the least sunshine days are February and November (8.5 days).

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Average UV index in August
Federal Way, WA

Average UV index in August - Federal Way, WA
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 6).
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
Federal Way, WA

Average cloud cover in August - Federal Way, WA
  • Average cloud cover in August: 25

The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in August
Federal Way, WA

Average visibility in August - Federal Way, WA
  • Average visibility in August: 6mi

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

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Federal Way, Washington, USA

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