FallPeak season ~77°F highs

Things to do in Portland in September

September is one of the best months to visit Portland, with average highs around 77°F. Crisp air and changing leaves make parks and viewpoints shine.

Plan a September weekend Where else in September

Best picks for September

What's famous here, weighted toward what shines in September.

1Foliage walks

Mill Ends Park

Former Guinness Book of Records world’s smallest park

2Fall colors

Mount Sylvania

extinct volcano in Portland, OR

3Foliage walks

Mount Hood National Forest

Holidays in September 2027

Labour Day · Mon, Sep 6

Expect busier roads and pricier stays around these dates. See long weekends.

Also great in September in Oregon

Klamath Falls Salem Bend Eugene

Portland in September: quick answers

Is September a good time to visit Portland?

September is one of the best months to visit Portland, with average highs around 77°F. Crisp air and changing leaves make parks and viewpoints shine.

What is the weather like in Portland in September?

Average daytime highs are around 77°F, compared with 84°F in the warmest month. Check the forecast a week out; our planner favors indoor stops on rainy days.

What are the best things to do in Portland in September?

Top picks for September: Mill Ends Park, Mount Sylvania, Mount Hood National Forest, Astoria Column, Fort Astoria.