In May, Seattle averages a high of 65°F (18°C) and a low of 48°F (9°C). Most runs feel like about 57°F (14°C) once you factor in a typical morning or evening start, so dress for that number rather than the thermometer. Cool, damp, and rarely extreme — Seattle is all about staying dry without overheating.
65°F (18°C)
48°F (9°C)
Feels like 57°F (14°C)
Almost any time works this month. Early mornings are coolest if you prefer to avoid the 65°F (18°C) afternoon high.
Short Sleeve Tech Shirt
Breathable running tee
Running Shorts
Lightweight with built-in brief
Running Shoes
Your regular training shoes
$115
$55
$349
$17
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In May, Seattle runs feel like about 57°F (14°C). A short or long-sleeve tech shirt with shorts or light tights is ideal. Carry a packable layer if it is windy.
May is some of the best running weather of the year in Seattle, with average highs near 65°F (18°C) and lows near 48°F (9°C).
It is a toss-up in May. Many runners are comfortable in shorts once moving, while capris or light tights suit anyone who runs cold at feels-like 57°F (14°C).
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