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Seattle Weather in August

Averages By Month

August Overview


August continues to offer warm and dry weather in Seattle. Average temperatures range from 56°F to 77°F (13°C to 25°C). Days remain long, with around 15 hours of daylight, and sunshine is abundant. Rain showers are rare, with an average of 0.9 inches (23 mm) of precipitation. Wind speeds remain moderate, around 6 mph on average. Visitors should pack light, breathable clothing and sunscreen. Outdoor activities such as visiting the Seattle Great Wheel or taking a whale watching tour are recommended. August also hosts events like the Seattle Art Fair, featuring modern and contemporary artwork from around the world.


High and Low Temperature in August °F

Water Temperature in August °F

Averages Seattle

  J F M A M J J A S O N D

High °F

45° 50° 54° 57° 64° 70° 73° 73° 68° 61° 52° 46°

Low °F

36° 37° 37° 41° 46° 52° 55° 55° 52° 46° 41° 36°

Sun

2 4 5 7 8 9 10 9 7 5 2 2

Rain days

18 15 16 14 11 9 5 6 9 13 18 19

Water °F

46° 46° 46° 50° 54° 55° 57° 57° 55° 52° 48° 46°


Seattle Weather by Month

Best Time to Visit Seattle

The best time to visit Seattle weather-wise is during the summer months, from June to August, when the temperatures range from 70°F to 80°F (21°C to 27°C). This is the ideal time to enjoy outdoor activities such as hiking, sightseeing, and visiting the city's parks and waterfront. However, summer is also peak tourist season, which means higher prices, crowded attractions, and occasional traffic congestion.

Spring (March to May) and fall (September to November) offer milder temperatures and fewer crowds compared to summer. Spring brings blooming cherry blossoms and the famous Skagit Valley Tulip Festival, while fall offers beautiful foliage and cultural events like the Seattle International Film Festival. However, both seasons also experience more rainfall compared to summer, and there is a possibility of encountering some cloudy days. Winter (December to February) is the coldest and wettest season in Seattle, with temperatures averaging around 40°F (4°C) and frequent rain. While hotel rates are at their lowest and attractions are less crowded, outdoor activities may be limited due to the weather, and there is a chance of encountering storms. However, winter in Seattle also brings festive events like the Seattle Christmas Ship Festival and the Winter Solstice Night Market.

Things to know about Seattle

Seattle, Washington, is a dynamic vacation destination known for its stunning natural beauty, vibrant cultural scene, and thriving culinary scene. With its iconic Space Needle, bustling Pike Place Market, and proximity to both mountains and the sea, Seattle offers something for every type of traveler.

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