What to Wear in Portland in Winter: Month-by-Month Outfit Guide
Portland in winter sits in the 35 to 50°F range. This is the layer-by-layer outfit guide for Portland's winter weather — what to wear, what to pack for a visit, and the local context that shapes the recommendations.
WHAT TO EXPECT
35 to 50°F is the typical range for Portland in winter (December, January, February). November through March. 40-50°F highs, 30-40°F lows. Rain rather than snow most years. Water-resistant breathable shell over wool layers. Quality treated leather boots or technical hikers. 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 standard cotton or synthetic shirt is fine. The base layer is conversation-piece territory — not survival.
THE MID LAYER
A cardigan, light fleece, or vest — pick based on whether you'll be active or stationary outdoors.
THE OUTERWEAR
Trench coat, light wool blazer, denim jacket, or a packable shell. Layer the outerwear, don't replace it.
ACCESSORIES
A scarf for cool mornings, a packable umbrella, and shoes you can walk in for an hour.
WHAT TO PACK FOR A TRIP TO PORTLAND IN WINTER
Three layer permutations covering the 35 to 50°F range, plus accessories. If your trip spans the season's edge (early March or late November), pack toward the cooler end of the range — overestimating warmth is easier to recover from than underestimating.
LOCAL CONTEXT
Locally, hoods over umbrellas. The light persistent rain demands different gear than tropical downpours. A breathable shell with DWR is the most useful piece. Wool sweaters and casual outerwear define the Portland style.