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Portland Union Station

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Portland Union Station Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Portland Union Station year round climate

  • Spring (March–May): Average 48–60°F, mild climate, but occasional showers. Rainfall gradually decreases from March to May. Common activities: Outdoor walks, museum visits, exploring city parks. Recommended clothing: Light jacket, comfortable trousers or skirt, and comfortable shoes.
  • Summer (June–August): Average 65–74°F, warm and dry weather, sunny, very little rainfall in July and August. Common activities: Hiking, camping, water activities. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 46–67°F, temperatures gradually decrease, rainfall increases, especially in November. Common activities: Leaf peeping, winery visits, enjoying harvest festivals. Recommended clothing: Light jacket or fleece, comfortable trousers or skirt.
  • Winter (December–February): Average 41–43°F, cold and humid climate, higher rainfall, with December being the rainiest month. Common activities: Indoor activities, museum visits, enjoying warm cafes. Recommended clothing: Warm coat, scarf, hat, gloves.

Portland Union Station climatological average

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

Portland Union Station 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 Union Station weather for the next seven days

3/19
Thursday
Sunny
70°F/50.5°F
3/20
Friday
Patchy rain nearby
61.5°F/52.5°F
3/21
Saturday
Partly Cloudy
49.6°F/40.8°F
3/22
Sunday
Partly Cloudy
54.5°F/31.5°F
3/23
Monday
Partly Cloudy
52.8°F/40.9°F
3/24
Tuesday
Moderate rain
49.1°F/39.6°F
3/25
Wednesday
Patchy rain nearby
48.4°F/35.9°F