Portland Half Marathon
Race Day Weather
Cool start — fast day potential, big temp swing
A cool 48°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 65°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing. Moderate humidity at 70% is worth noting for effort level, especially in later miles.
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Race Info
The Portland Half Marathon runs 13.1 miles from Waterfront Park on Salmon Street, north through downtown on SW 4th Avenue past Lownsdale Square and through a short loop in Old Town Chinatown before returning to Naito Parkway. The course then runs south beneath the Portland Aerial Tram to Macadam Avenue, crosses the Willamette River on the Sellwood Bridge and follows the bluff on Sellwood Boulevard through the Sellwood-Moreland neighborhood. It heads back north through Brooklyn and under the Ross Island Bridge onto the Eastbank Esplanade, passing OMSI and the USS Blueback submarine. The route crosses the Burnside Bridge toward the White Stag sign and finishes on Naito Parkway at Waterfront Park, on a fast, low-elevation course.
