Typical Weather in Portland, OR in August
80° F Avg High
58° F Avg Low
2 Rainy Days
☀️ Temperature Summary
August is a popular time of year to visit, with an inviting climate characterized by warm temperatures. Compared to other months, Portland experiences cooler conditions in August, with daytime highs averaging 80°F. Overnight lows will be around 58°F on average. This is the hottest month of the year in Portland.
The warm, dry temperatures in August make Portland a great destination to relax and soak up the sun.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In August you can expect close to a 6% chance of rain for any given day. It rains less than usual in August, with total rainfall for the month typically near 1 inches.
Rainfall Throughout the Year
Planning a trip to Portland? Try our free trip weather planner