August weather forecast
Bothell, WA

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Weather in August

In Bothell, August continues to uphold the summer spirit. People can enjoy warm, sunlit days, even as daily temperatures begin to fall subtly. It carries the reputation for being the driest month, receiving only an average of 0.55" (14mm) of rainfall. Despite the recurrent summer patterns, August also hints at the arrival of the cooler fall. As it acts as the bridge between summer and autumn, August's sunny disposition aligns perfectly with the anticipation of the colorful fall foliage in September.

Temperature

In Bothell, August is the warmest month, with temperatures averaging a high of 74.8°F (23.8°C) and a low of 53.1°F (11.7°C).

Humidity

In Bothell, Washington, the average relative humidity in August is 72%.

Rainfall

In Bothell, in August, during 6.9 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Bothell, Washington, during the entire year, the rain falls for 166.9 days and collects up to 21.93" (557mm) of precipitation.

Snowfall

May through October are months without snowfall in Bothell.

Daylight

The average length of the day in August in Bothell is 14h and 13min.
On the first day of August, sunrise is at 5:47 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:50 pm PDT.

Sunshine

August has the most sunshine of the year in Bothell, with an average of 10.7h of sunshine.

UV index

In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 4 in August translates into these instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What are the warmest months in Bothell?

The temperatures in Bothell, Washington, reach their highest averages in August, with highs of 74.8°F (23.8°C) and lows of 53.1°F (11.7°C).

What are the temperatures in Bothell in August?

The high-temperature, in August, in Bothell, is 74.8°F (23.8°C), while the low-temperature averages to 53.1°F (11.7°C).

What is the average humidity in August in Bothell?

The average relative humidity in August is 72%.

How many days does it rain in August in Bothell?

In Bothell, during August, the rain falls for 6.9 days and regularly aggregates up to 0.55" (14mm) of precipitation.

When it does not snow in Bothell?

May through October are months without snowfall in Bothell, Washington.

How many hours of daylight does Bothell have in August?

The average day length in August in Bothell, Washington, is 14h and 13min.

When are sunrise and sunset in August in Bothell?

In August, on the first day of the month, sunrise is at 5:47 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:50 pm PDT.

What month has the most sunshine in Bothell?

The month with the most sunshine in Bothell is August, with an average of 10.7h of sunshine.

How long on average sun shines in August in Bothell?

In Bothell, Washington, the average sunshine duration in August is 10.7h.

What is the UV index intensity in August in Bothell?

In Bothell, the average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a medium health risk 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
Bothell, WA

Average temperature in August - Bothell, WA
  • Average high temperature in August: 74.8°F

The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in August: 53.1°F

The month with the highest average low temperature is August (53.1°F).
The coldest months (with the lowest average low temperature) are February and December (35.1°F).

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Average pressure in August
Bothell, WA

Average pressure in August - Bothell, WA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in August
Bothell, WA

Average wind speed in August - Bothell, WA
  • Average wind speed in August: 3.4mph

The windiest months (with the highest average wind speed) are January and March (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

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Average humidity in August
Bothell, WA

Average humidity in August - Bothell, WA
  • Average humidity in August: 72%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in August
Bothell, WA

Average rainfall in August - Bothell, WA
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is January (2.87").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in August
Bothell, WA

Average rainfall days in August - Bothell, WA
  • Average rainfall days in August: 6.9 days

The month with the highest number of rainy days is November (17.9 days).
The month with the least rainy days is August (6.9 days).

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Average snowfall in August
Bothell, WA

Average snowfall in August - Bothell, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Bothell, WA

Average snowfall days in August - Bothell, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.5 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
Bothell, WA

Average daylight in August / Average sunshine in August - Bothell, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).

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Average sunshine days in August
Bothell, WA

Average sunshine days in August - Bothell, WA
  • Average sunshine days in August: 21.9 days

The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is April (10.5 days).

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Average UV index in August
Bothell, WA

Average UV index in August - Bothell, 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
Bothell, WA

Average cloud cover in August - Bothell, WA
  • Average cloud cover in August: 24

The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in August
Bothell, WA

Average visibility in August - Bothell, WA
  • Average visibility in August: 6mi

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

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Bothell, Washington, USA

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