What to Wear in Seattle in Winter: Month-by-Month Outfit Guide
Seattle in winter sits in the 35 to 50°F range. This is the layer-by-layer outfit guide for Seattle's winter weather — what to wear, what to pack for a visit, and the local context that shapes the recommendations.
WHAT TO EXPECT
Seattle in winter — December, January, February. November through March. 35-50°F. Rare snow, frequent rain. A waterproof breathable shell over wool layers. Quality treated leather boots or hiking shoes. Skip the heavy parka — moisture matters more than insulation. The temperature range is the headline; what you actually feel depends on humidity, wind, and what indoor spaces you'll cycle through.
THE FOUNDATION LAYER
A lightweight merino or technical long-sleeve under your shirt or sweater handles the temperature swing.
THE MID LAYER
A wool sweater or insulated vest carries you between the base and the outerwear. In Seattle's winter, this layer comes off the moment you're indoors.
THE OUTERWEAR
A wool topcoat, trench, or insulated shell. A waterproof shell is more useful than a heavier wool coat — coastal rain has no off-season.
ACCESSORIES
Wool scarf, knit hat for cold mornings, gloves for the commute. Boots over sneakers.
WHAT TO PACK FOR A TRIP TO SEATTLE IN WINTER
Three layer permutations covering the 35 to 50°F range, plus accessories. If your trip spans the season's edge (late November or early March), pack toward the cooler end of the range — overestimating warmth is easier to recover from than underestimating.
LOCAL CONTEXT
Locals do not use umbrellas — they use hoods. A water-resistant breathable jacket is the most useful single garment in Seattle. Light rain (Seattle's typical) demands a different jacket than heavy rain (a Gore-Tex shell with sealed seams).