Temperature
Pleasant by day, brisk at night.
65°Ftypical October high
Typical range
Mild days with cool nights.
Pleasant by day, brisk at night.
Several rainy days. About 13 wet days this month.
Sunshine is limited, with cloud often dominating.
In October, afternoons feel about 60° and nights feel near 45°.
Mostly cloudy skies this month.
Calm winds are typical in October.
October late afternoons are around 63°F, easing to about 57°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 49 | 38 | 6.9 | 18 | 2.8 | 84 |
| Feb | 52 | 38 | 5.3 | 16 | 4.1 | 80 |
| Mar | 57 | 41 | 5.8 | 19 | 6.2 | 78 |
| Apr | 63 | 44 | 4.3 | 16 | 7.4 | 73 |
| May | 70 | 49 | 2.8 | 12 | 8.9 | 71 |
| Jun | 76 | 54 | 1.7 | 8 | 9.7 | 67 |
| Jul | 85 | 58 | 0.3 | 2 | 10.7 | 60 |
| Aug | 85 | 58 | 0.5 | 2 | 9.6 | 60 |
| Sep | 78 | 54 | 1.7 | 6 | 7.9 | 66 |
| Oct | 65 | 47 | 4.1 | 13 | 4.9 | 78 |
| Nov | 54 | 42 | 6.9 | 17 | 2.6 | 84 |
| Dec | 48 | 38 | 8.0 | 19 | 2.1 | 85 |
Similar climates
Want a side-by-side climate view? Compare Portland with Asheville.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology