USA

Seattle weather in August

Weather in Seattle: August


	Average day temperature:	77.9°F
	Average night temperature:	60.7°F

	Number of sunny days:	19 days
	Day length:	13.4 - 14.9 hours

	Number of rainy days:	1 day
	Precipitation totals:	0.4 in.

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14 days
forecast

Seattle

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112

Day temperature

Night temperature

The highest day temperature during August of 2024 was 86°F. At the same time the lowest night temperature was 48°F. Daily and nightly averages during August were 73.4°F and 56.8°F.

	Sunny days
	Partly cloudy days
	Cloudy days

58%

19%

23%

Mostly all days in August are sunny but cloudy days are also possible.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

0.5

0.9

1.4

1.8

2.3

2.8

3.2

2.2

1.9

1.8

1.1

1.0

1.3

2.0

1.9

1.8

2.7

2.2

1.9

1.8

1.1

1.0

1.3

2.0

1.9

1.8

2.7

Precipitation total value in Seattle in August is 0.4 in. Other months of the year show relatively similar values.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

1.0

1.9

2.9

3.9

4.8

5.8

6.8

7.7

5.0

5.4

4.9

4.6

5.1

4.9

5.6

5.4

5.0

5.4

4.9

4.6

5.1

4.9

5.6

5.4

5.0

The average wind speed value in August is 4.6 mph It makes August one of the least windy months of the year.

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

0.0

2.0

3.9

5.9

7.9

9.8

11.8

13.8

2.0

2.8

5.0

7.0

11.5

8.9

6.7

5.5

3.9

2.8

2.7

2.0

2.8

5.0

7.0

9.7

11.5

8.9

6.7

5.5

3.9

2.8

2.7

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 9.7.