Weather atlas / The seasons
Climate in Portland
Portland experiences a mild, temperate climate with four distinct seasons. Temperatures typically range from cool and damp in winter to warm and relatively dry in summer. Visitors should expect frequent rain and overcast skies throughout the year.
Temperature in °C · Rainfall in mm · Monthly climate averages
Temperature
Precipitation
Monthly Averages
Monthly detail · Scroll the table to see all measurements →
| Month | High °C | Avg °C | Low °C | Rain | Days | Sun (h) | Comfort |
|---|---|---|---|---|---|---|---|
| May | 28° | 20° | 14° | 0mm | 0 |
All-time Records
Record High29.8°CMay
Record Low12.1°CMay
Driest Month0mmMay
Sunniest MonthhMay