Portland - When to Visit

When to Visit Portland

Climate guide & best times to travel

Monthly Climate Data for Portland Average temperature and rainfall by month Climate Overview -3°C 6°C 15°C 24°C 34°C Rainfall (mm) 0 5 10 Jan Jan: 8.0°C high, 2.0°C low, 5mm rain Feb Feb: 9.0°C high, 2.0°C low, 5mm rain Mar Mar: 12.0°C high, 3.0°C low, 5mm rain Apr Apr: 16.0°C high, 6.0°C low, 3mm rain May May: 20.0°C high, 9.0°C low, 3mm rain Jun Jun: 24.0°C high, 12.0°C low, 3mm rain Jul Jul: 29.0°C high, 15.0°C low Aug Aug: 29.0°C high, 16.0°C low Sep Sep: 24.0°C high, 13.0°C low, 3mm rain Oct Oct: 17.0°C high, 8.0°C low, 5mm rain Nov Nov: 11.0°C high, 5.0°C low, 8mm rain Dec Dec: 8.0°C high, 2.0°C low, 8mm rain Temperature Rainfall
Portland, United States experiences a temperate oceanic climate with distinct wet and dry seasons. The city is characterized by mild, wet winters and warm, dry summers - a classic Pacific Northwest climate pattern. Winter months (November through March) bring cool temperatures and the majority of annual rainfall, with highs around 8-12°C (46-54°F) and frequent drizzle. Spring transitions gradually from wet to dry conditions, with temperatures steadily climbing from March through May. Summer (June through September) is Portland's glory season, featuring warm, sunny days with minimal rainfall and comfortable temperatures peaking at 29°C (84°F) in July and August. The dry summer weather makes this the most popular time for outdoor activities and tourism. Fall brings a return to wetter conditions, particularly in November, as temperatures cool back down. The consistent 70% humidity year-round keeps the climate feeling moderate, never too oppressive even during the warmest months.

Best Time to Visit

Beach & Relaxation
July through September offers the warmest temperatures (24-29°C/75-84°F) and virtually no rainfall, perfect for enjoying the nearby Oregon Coast beaches and outdoor relaxation.
Cultural Exploration
April through June provides mild, increasingly pleasant weather with low rainfall, ideal for exploring Portland's museums, food scene, breweries, and neighborhoods without summer crowds.
Adventure & Hiking
June through September delivers dry trails, warm weather, and excellent visibility for hiking Mount Hood, the Columbia River Gorge, and Forest Park during the extended summer season.
Budget Travel
November through March offers the lowest hotel rates and smallest crowds, though you'll need rain gear to enjoy Portland's indoor attractions, coffee culture, and cozy atmosphere.

Month-by-Month Guide

January

January is one of Portland's coldest and wettest months, with cool temperatures and frequent rain showers. The city takes on a cozy, gray atmosphere perfect for enjoying indoor attractions like museums, cafes, and the famous food scene. Pack layers and waterproof gear, and expect occasional frosty mornings.

8°C (46°F) High
2°C (36°F) Low
5mm (0.2in) Rainfall
Low Crowds
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February

February continues the wet winter pattern with similar conditions to January, though days begin to gradually lengthen. This is still off-season for tourism, making it ideal for budget travelers who don't mind the rain. Early signs of spring may appear toward month's end with occasional breaks in cloud cover.

9°C (48°F) High
2°C (36°F) Low
5mm (0.2in) Rainfall
Low Crowds
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March

March marks the beginning of spring with temperatures slowly warming and the first hints of longer, brighter days. Rain remains common but flowers begin blooming throughout the city's parks and gardens. It's a transitional month that still requires rain gear but offers more pleasant moments between showers.

12°C (54°F) High
3°C (37°F) Low
5mm (0.2in) Rainfall
Low Crowds
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April

April brings noticeable spring warmth with temperatures climbing into the comfortable mid-teens and rainfall beginning to decrease. Cherry blossoms peak and the city comes alive with outdoor markets and festivals. This shoulder season offers good value with improving weather and lighter tourist traffic.

16°C (61°F) High
6°C (43°F) Low
3mm (0.1in) Rainfall
Medium Crowds
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May

May is one of Portland's most delightful months, with warm spring temperatures, reduced rainfall, and lush greenery everywhere. Outdoor dining patios open, hiking trails dry out, and the city buzzes with energy. It's an excellent time to visit before peak summer crowds arrive.

20°C (68°F) High
9°C (48°F) Low
3mm (0.1in) Rainfall
Medium Crowds
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June

June ushers in Portland's spectacular summer with warm, dry weather and long daylight hours perfect for outdoor activities. The Rose Festival takes place, showcasing why Portland is called the "City of Roses." Tourism picks up significantly as both weather and conditions are near-perfect for exploring the Pacific Northwest.

24°C (75°F) High
12°C (54°F) Low
3mm (0.1in) Rainfall
High Crowds
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July

July is peak summer with the warmest temperatures of the year and virtually no rainfall. The city is at its liveliest with outdoor concerts, food cart festivals, and perfect conditions for day trips to Mount Hood or the coast. Book accommodations early as this is the busiest tourist month.

29°C (84°F) High
15°C (59°F) Low
0mm (0.0in) Rainfall
High Crowds
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August

August continues July's excellent weather with warm, dry, sunny days ideal for all outdoor activities. The Willamette River is perfect for kayaking, and nearby hiking trails are in prime condition. This remains peak tourist season with high hotel rates but guaranteed pleasant weather.

29°C (84°F) High
16°C (61°F) Low
0mm (0.0in) Rainfall
High Crowds
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September

September offers outstanding weather with warm temperatures, minimal rain, and the beginning of fall colors. Crowds start to thin after Labor Day while conditions remain excellent for outdoor exploration. Many locals consider this the best month to enjoy Portland, with harvest season bringing fresh produce and wine country tours.

24°C (75°F) High
13°C (55°F) Low
3mm (0.1in) Rainfall
Medium Crowds
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October

October brings cooler temperatures and the return of more frequent rain as fall settles in. The city's abundant trees display beautiful autumn colors, and pumpkin patches and apple orchards near Portland are popular attractions. Pack layers and be prepared for variable weather as the wet season approaches.

17°C (63°F) High
8°C (46°F) Low
5mm (0.2in) Rainfall
Medium Crowds
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November

November marks the transition to full winter weather with significantly increased rainfall and shorter days. Temperatures drop noticeably and the city takes on its characteristic gray, rainy atmosphere. Tourism slows considerably, offering good deals on accommodations for those who embrace the cozy, wet Portland experience.

11°C (52°F) High
5°C (41°F) Low
8mm (0.3in) Rainfall
Low Crowds
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December

December is cold, wet, and festive with holiday lights brightening the gray days throughout downtown and neighborhoods. Rain is frequent and temperatures are chilly, occasionally dipping to freezing. The city's Christmas markets, cozy cafes, and indoor attractions make it appealing for winter enthusiasts, though outdoor activities are limited.

8°C (46°F) High
2°C (36°F) Low
8mm (0.3in) Rainfall
Low Crowds
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