Best Time to Visit Portland, Oregon (2026)
The best time to visit Portland is May through September, when average highs are 68-82°F with minimal rain. Avoid December when frequent rain (5.9") limits outdoor activities.
Month-by-Month Weather Overview
| Month | High | Low | Rain | Snow | Score |
|---|---|---|---|---|---|
| Jan | 47°F | 36°F | 5.4" | 1.5" | 2/10 |
| Feb | 51°F | 37°F | 3.7" | 1" | 4/10 |
| Mar | 56°F | 40°F | 3.7" | 0.2" | 5/10 |
| Apr | 61°F | 43°F | 2.7" | — | 7/10 |
| May | 68°F | 49°F | 2.5" | — | 10/10 |
| Jun | 74°F | 54°F | 1.6" | — | 10/10 |
| Jul | 81°F | 58°F | 0.5" | — | 10/10 |
| AugBest | 82°F | 58°F | 0.6" | — | 10/10 |
| Sep | 76°F | 53°F | 1.5" | — | 10/10 |
| Oct | 63°F | 45°F | 3.1" | — | 7/10 |
| Nov | 52°F | 40°F | 5.6" | 0.5" | 3/10 |
| Dec | 46°F | 35°F | 5.9" | 1.5" | 1/10 |
Tourism score: 1-10 (higher = better for visiting). Based on temperature comfort, rainfall, and humidity.
When NOT to Visit Portland
December is the least ideal time to visit Portland. Heavy rainfall averaging 5.9" can disrupt outdoor plans.
Seasonal Breakdown
Spring
Spring brings mild weather to Portland, with highs around 62°F. Expect some rain (8.9" total) but increasingly pleasant days.
Summer
Portland has mild summers with highs around 79°F — comfortable for extended outdoor exploration.
Fall
Fall brings comfortable temperatures to Portland, with highs around 64°F. Often considered the best season to visit.
Winter
Portland has mild winters with highs around 48°F. No heavy coats needed — a light jacket will do.
What to Pack for August in Portland
- ✓Light layers
- ✓Sunglasses
- ✓Comfortable walking shoes
- ✓UV-protection sunglasses
Safety in Portland
While you're planning, Portland has a Very High Risk safety rating based on FBI crime data. See full safety report.
Frequently Asked Questions
What is the best month to visit Portland?
The best time to visit Portland is May through September, when highs average 68-82°F with comfortable temperatures and manageable rainfall. August scores highest for tourism at 10/10.
What is the weather like in Portland in August?
In August, Portland has average highs of 82°F and lows of 58°F. Expect 0.6" of rainfall and 56% humidity. Snow is not expected.
Does it snow in Portland?
Yes, Portland gets an average of 4.7" of snow per year across 3 months. Snowfall is light.
How hot does Portland get?
The hottest month in Portland is August, with average highs of 82°F and lows of 58°F. Humidity averages 56%. Summers are warm but generally manageable.
What should I pack for Portland?
For the best time to visit (August): Light layers, Sunglasses, Comfortable walking shoes, UV-protection sunglasses. Adjust layers based on the season you're visiting.