What is the weather like in Portland throughout the year?

Portland experiences varying weather throughout the year. The warmest month is August with average highs of 28°C. The coolest month is December.

What is the weather like in Portland in July?

Portland in July scores 67/100 based on 30 years of climate data. Very good conditions overall.

Who should visit Portland in July?

July in Portland is ideal for: Families with children, Outdoor enthusiasts, Photographers, Cultural tourists, Honeymoon couples.

Best Time to Visit Portland | 30-Year Weather Analysis

Why July is the Best Time to Visit Portland

Is July a Good Time to Visit Portland?

👍Very good conditions overall(67/100)

Short Answer

July is Portland's peak season for good reason: 28°C temperatures and 4% rain probability. But expect crowds (99% of annual maximum) and premium prices.

Decision Factors

Peak tourist season

99% of annual peak - expect crowds and peak prices

Excellent dry conditions

Only 4% rain probability - ideal for outdoor activities

Near active volcano: Mount St. Helens

Medium volcanic risk

Comfortable humidity levels

60% humidity - pleasant conditions

Plenty of sunshine

12.7h of sunshine daily

Good For

👨‍👩‍👧‍👦
Families with children
Comfortable 27.8°C temperatures and low 4% rain risk
🥾
Outdoor enthusiasts
Ideal hiking conditions: 27.8°C, 4% rain chance
📸
Photographers
12.7h sunshine, 66% clear skies for golden hour shots
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💑
Honeymoon couples
Wedding score 100/100 with romantic weather conditions

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere

Warmest

August

28°C avg

Coolest

December

8°C avg

Driest

July

4% rain

Wettest

December

51% rain

Planning Your Trip to Portland, United States

Wondering when is the best time to visit Portland? Based on our analysis of 30 years of NASA satellite weather data, the ideal months to travel to Portland are July, August, June. During these months, you'll experience optimal temperatures around 28°C with only 4% chance of rain.

The Portland climate varies throughout the year. August is the hottest month with average highs of 28°C, while December is the coldest at 8°C. If you're planning outdoor activities or sightseeing in Portland, avoid December when rainfall peaks at 51% probability.

For the best Portland weather experience, we recommend visiting during July for the driest conditions or the shoulder months of July and August for a perfect balance of weather and fewer crowds.

Portland Weather by Month: Climate Guide

Click any month to explore detailed daily forecasts for Portland

🏆 85-100: Excellent👍 70-84: Great👌 55-69: Good🤔 40-54: Fair⚠️ 0-39: Challenging

When to Visit Portland: Travel Style Guide

Personalized Portland travel recommendations based on 30-year weather data

Beach Lovers

Warmest months with comfortable temperatures for outdoor activities

JulyAugust

Budget Travelers

Shoulder season with good weather and lower prices

AprilOctober

Avoiding Crowds

Fewer tourists with acceptable weather conditions

AprilOctober

Photography

Best light conditions with clear skies

JulyAugustSeptember

Winter Escape

Escape the cold with warmest temperatures

JulyAugustSeptember

Honeymoon

Perfect conditions for a romantic getaway

MayJuneJuly

Portland Weather FAQ: Your Questions Answered

What is the best time to visit Portland?

Based on 30 years of weather data, the best months to visit Portland are July, August, June. These months offer the optimal combination of pleasant temperatures (28°C avg) and low rainfall (4% chance).

When is the hottest time of year in Portland?

August is historically the warmest month in Portland with average highs of 28°C. If you prefer cooler weather, consider visiting in December when temperatures average around 8°C.

When is the rainy season in Portland?

December typically sees the most rainfall in Portland with a 51% chance of rain. For the driest conditions, plan your visit in July when rain probability drops to just 4%.

How accurate is the Portland weather forecast?

Our Portland climate analysis is based on 30 years of NASA POWER satellite observations (1995-2024), providing highly accurate historical averages. While weather can vary year to year, these long-term patterns are excellent indicators for planning your trip to Portland.

What should I pack for Portland?

Packing depends on when you visit. In August (warmest month), pack light summer clothes for 28°C weather. In December (coolest month), bring layers for 8°C temperatures. During December, pack rain gear as there's a 51% chance of rain.

Is Portland good for a destination wedding?

Yes! The best months for an outdoor wedding in Portland are July (only 4% rain chance) and July for optimal weather conditions. Avoid December when rain probability peaks at 51%.