Best Time to Visit Portland
Best time: Jul, Aug, Jun, Sep.
Aug is warmest (26.5°C high); Dec is rainiest (172 mm).
Portland weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 7.6 | 1.1 | 158 | 1.9 |
| Feb | 10.3 | 1.9 | 123 | 3.3 |
| Mar | 13.2 | 3.4 | 109 | 4.8 |
| Apr | 16 | 4.9 | 77 | 6.7 |
| May | 19.6 | 7.7 | 62 | 8.3 |
| Jun | 22.8 | 10.4 | 43 | 9.4 |
| Jul | 26.1 | 12.5 | 19 | 10.1 |
| Aug | 26.5 | 12.1 | 25 | 8.9 |
| Sep | 23.6 | 9.8 | 46 | 6.8 |
| Oct | 17.7 | 6 | 83 | 3.9 |
| Nov | 11.1 | 3.5 | 160 | 2.1 |
| Dec | 7.4 | 1.2 | 172 | 1.5 |
Average high temperature
Best months by activity
Overall: JulAugJunSep
Beaches: JulAugJunSep
Hiking: JulAugJunSep
Sightseeing: JulAugJunSep
Portland quick facts
What to pack
Cold months (Jan, Feb, Nov, Dec): warm layers and a coat.
Wet months (Jan, Feb, Mar, Nov, Dec): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Portland?
Jul, Aug, Jun, Sep.
What is the rainiest month?
Dec, about 172 mm.
What is the warmest month?
Aug, with average highs of 26.5°C.
Where to stay
See Portland hotels · Book Portland tours & activities
All destinations · Best time to visit New York · Best time to visit Los Angeles · Best time to visit Miami · Best time to visit San Francisco
Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.