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Portland

Portland 1
Travel Info
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Travel Info

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Portland Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Portland year round climate

  • Spring (March–May): Average 48–60°F, mild and rainy with occasional sunshine. Rainfall is higher in March–May, gradually decreasing as the season progresses. Popular activities: Hiking, exploring city parks, visiting museums. Suggested clothing: Light jacket, comfortable pants or jeans, raincoat or umbrella.
  • Summer (June–August): Average 65–74°F, warm and dry with sunny skies. Rainfall is very low in July and August. Popular activities: Outdoor picnics, cycling, hiking, water activities. Suggested clothing: Short-sleeved T-shirts, shorts, sandals, sunscreen and hat.
  • Autumn (September–November): Average 46–67°F, cool and pleasant with increasing rainfall. Temperatures drop more rapidly after October. Popular activities: Leaf peeping, winery visits, leisurely strolls. Suggested clothing: Long-sleeved shirts, light jacket, comfortable pants.
  • Winter (December–February): Average 41–43°F, cold and damp with higher rainfall and frequent overcast skies. Popular activities: Indoor museum visits, café hopping, shopping. Suggested clothing: Warm coat, sweater, scarf, gloves, and hat, waterproof jacket and rain boots.

Portland climatological average

Annual average temperature: approx. 56.3°F / Annual rainfall: approx. 978 mm / Summer humidity: 60%–70% / Rainiest month: December

Portland monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
41.9°F
151.7
February
43.7°F
80.7
March
48.4°F
85
April
52°F
107
May
60.1°F
60.3
June
65.8°F
48
July
73.8°F
2
August
74.1°F
10.3
September
67.8°F
19.7
October
58.8°F
74.7
November
46.6°F
142
December
43.3°F
197.3

Portland weather for the next seven days

12/21
Sunday
Patchy rain nearby
46.9°F/40.1°F
12/22
Monday
Cloudy
47.8°F/41.4°F
12/23
Tuesday
Fog
48.2°F/40.6°F
12/24
Wednesday
Partly Cloudy
43.6°F/37.8°F
12/25
Thursday
Patchy rain nearby
43.8°F/36.1°F
12/26
Friday
Sunny
46.2°F/37.2°F
12/27
Saturday
Sunny
46.9°F/36.7°F