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Seattle Weather in May

Averages By Month

May Overview


May brings even warmer temperatures to Seattle, with average highs ranging from 48°F to 64°F (9°C to 18°C). Days are long, with around 16 hours of daylight, and sunshine becomes more abundant. Rain showers are infrequent, with an average of 1.5 inches (38 mm) of precipitation. Wind speeds remain moderate, around 8 mph on average. Visitors should pack layers, including a light jacket or sweater, and sunscreen. Outdoor activities such as visiting the Woodland Park Zoo or exploring the Ballard Locks are recommended. May also hosts events like the University District Street Fair, featuring local artisans, food vendors, and live music.


High and Low Temperature in May °F

Water Temperature in May °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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