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Portland vs Seattle

Detailed weather comparison to help you match your travel dates with the perfect climate.

Portland

United States

Avg High17°C
Best MonthsJun, Jul, Sep

Seattle

United States

Avg High15°C
Best MonthsJul, Aug, Sep

Monthly Weather Comparison

MonthPortland TempSeattle TempPortland RainSeattle Rain
Jan8°C7°C
48%
47%
Feb9°C8°C
44%
40%
Mar12°C11°C
48%
43%
Apr15°C13°C
40%
34%
May19°C17°C
28%
25%
Jun22°C20°C
18%
20%
Jul28°C24°C
4%
7%
Aug28°C24°C
6%
11%
Sep24°C21°C
15%
19%
Oct17°C15°C
32%
36%
Nov11°C10°C
49%
49%
Dec8°C7°C
51%
50%

When to choose Portland?

  • If you prefer 17°C average peaks
  • Great for visiting in: Jun, Jul, Sep

When to choose Seattle?

  • If you prefer 15°C average peaks
  • Great for visiting in: Jul, Aug, Sep