Weather in Portland in September
Portland, United States averages a high of 24°C (75.2°F) and low of 12.3°C (54.1°F) in September, with 6 rain days and 10.4 hours of daily sunshine. Travel score: 87.3/100 (Excellent). The best time to visit Portland is July.
High
24°C75°F
Low
12°C54°F
🌧️
6
rain days
☀️
10.4
hrs/day sunshine
💧
67%
humidity
87— Excellent
September in Portland is warm and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Portland?
How much does it rain in Portland in September?
Portland receives an average of 48.2mm of rainfall across 6 rainy days in September. The annual total is 1241.1mm.
What should I pack for Portland in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting United States in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31