Best Time to Visit Portland for a City Trip | Weather by Month

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City Trips Potential

98/100

Excellent

Based on optimal climate

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Seasonality

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Best Time

July, September, June

Avoid

January, February, March, October, November, December

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Weather

4°C – 19°C

Avg Temp Range

Precipitation

Seasonal (check heatmap)

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Good For

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United StatesCity Trips climate guide

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Planning a city trip to Portland?

The best time to visit Portland for a city trip is July, September, June, when you’ll get the best balance of weather, atmosphere, and activities. If you're planning your visit during this period, it’s worth exploring the best areas to stay and things to do in advance.

→ Explore the best places to stay in Portland

→ Discover top things to do in Portland

Climate Heatmap

See at a glance which months offer the best city trips conditions — based on temperature, rainfall and climate scores.

Planning your city trip? Finding a central area to stay is key to exploring Portland.

→ See where to stay in Portland

City Trips conditions breakdown

Monthly weather & climate data for Portland

Month	Climate Score	Predictability	Avg Temp	Max Temp	Rain (mm)	Rain Days	Humidity	Season
January	29Poor Cool temperatures. High rain conditions.	Predictability 70Weather conditions vary somewhat by season.	5°	8°	158	18.4	84%	wet
February	31Poor Cool temperatures. High rain conditions.	Predictability 78Weather conditions vary somewhat by season.	6°	10°	115	15.8	81%	shoulder
March	40Poor Cool temperatures. High rain conditions.	Predictability 70Weather conditions vary somewhat by season.	8°	13°	117	18.1	77%	shoulder
April	57Suboptimal Cool temperatures. Some rain conditions.	Predictability 78Weather conditions vary somewhat by season.	10°	15°	90	16.3	74%	shoulder
May	83Excellent Cool temperatures. Some rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	13°	19°	69	11.8	70%	shoulder
June	95Excellent Mild temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	16°	22°	44	8.7	69%	dry
July	98Excellent Mild temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	19°	25°	14	4.1	64%	dry
August	95Excellent Mild temperatures. Mostly dry conditions.	Predictability 60Weather conditions vary somewhat by season.	19°	26°	21	4.6	67%	dry
September	97Excellent Mild temperatures. Mostly dry conditions.	Predictability 60Weather conditions vary somewhat by season.	16°	23°	45	7.3	71%	dry
October	69Suboptimal Cool temperatures. High rain conditions.	Predictability 45Weather conditions can vary significantly.	12°	17°	102	13.7	80%	shoulder
November	35Poor Cool temperatures. High rain conditions.	Predictability 70Weather conditions vary somewhat by season.	7°	11°	168	18.4	85%	wet
December	28Poor Cool temperatures. High rain conditions.	Predictability 70Weather conditions vary somewhat by season.	4°	8°	181	19.2	84%	wet