What is the weather like in Seattle throughout the year?

Seattle experiences varying weather throughout the year. The warmest month is August with average highs of 24°C. The coolest month is December.

What is the weather like in Seattle in July?

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

Who should visit Seattle in July?

July in Seattle is ideal for: Families with children, Elderly travelers, Outdoor enthusiasts, Photographers, Cultural tourists.

Best Time to Visit Seattle | 30-Year Weather Analysis

Why July is the Best Time to Visit Seattle

Is July a Good Time to Visit Seattle?

👍Very good conditions overall(67/100)

Short Answer

Seattle's July delivers on its reputation: 24°C, 7% rain, 12.3h sunshine. The trade-off? Peak crowds and prices at 96% capacity.

Decision Factors

Peak tourist season

96% of annual peak - expect crowds and peak prices

Ideal temperature range

24.3°C - perfect for sightseeing and outdoor activities

Excellent dry conditions

Only 7% rain probability - ideal for outdoor activities

Near active volcano: Mount Rainier

Medium volcanic risk

Plenty of sunshine

12.3h of sunshine daily

Good For

👨‍👩‍👧‍👦
Families with children
Comfortable 24.3°C temperatures and low 7% rain risk
👴
Elderly travelers
Comfortable 24.3°C temperature range with manageable humidity
🥾
Outdoor enthusiasts
Ideal hiking conditions: 24.3°C, 7% rain chance
📸
Photographers
12.3h sunshine, 58% clear skies for golden hour shots
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites

Who Should Avoid

🏖️
Beach lovers
Sea temperature only undefined°C - too cold for comfortable swimming
💰
Budget travelers
Peak season means premium prices everywhere

Warmest

August

24°C avg

Coolest

December

7°C avg

Driest

July

7% rain

Wettest

December

50% rain

Planning Your Trip to Seattle, United States

Wondering when is the best time to visit Seattle? Based on our analysis of 30 years of NASA satellite weather data, the ideal months to travel to Seattle are July, August, June. During these months, you'll experience optimal temperatures around 24°C with only 7% chance of rain.

The Seattle climate varies throughout the year. August is the hottest month with average highs of 24°C, while December is the coldest at 7°C. If you're planning outdoor activities or sightseeing in Seattle, avoid December when rainfall peaks at 50% probability.

For the best Seattle 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.

Seattle Weather by Month: Climate Guide

Click any month to explore detailed daily forecasts for Seattle

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

When to Visit Seattle: Travel Style Guide

Personalized Seattle travel recommendations based on 30-year weather data

Budget Travelers

Shoulder season with good weather and lower prices

AprilMayOctober

Avoiding Crowds

Fewer tourists with acceptable weather conditions

MarchAprilMay

Photography

Best light conditions with clear skies

JulyAugustSeptember

Winter Escape

Escape the cold with warmest temperatures

JuneJulyAugust

Honeymoon

Perfect conditions for a romantic getaway

JuneJulyAugust

Seattle Weather FAQ: Your Questions Answered

What is the best time to visit Seattle?

Based on 30 years of weather data, the best months to visit Seattle are July, August, June. These months offer the optimal combination of pleasant temperatures (24°C avg) and low rainfall (7% chance).

When is the hottest time of year in Seattle?

August is historically the warmest month in Seattle with average highs of 24°C. If you prefer cooler weather, consider visiting in December when temperatures average around 7°C.

When is the rainy season in Seattle?

December typically sees the most rainfall in Seattle with a 50% chance of rain. For the driest conditions, plan your visit in July when rain probability drops to just 7%.

How accurate is the Seattle weather forecast?

Our Seattle 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 Seattle.

What should I pack for Seattle?

Packing depends on when you visit. In August (warmest month), pack light summer clothes for 24°C weather. In December (coolest month), bring layers for 7°C temperatures. During December, pack rain gear as there's a 50% chance of rain.

Is Seattle good for a destination wedding?

Yes! The best months for an outdoor wedding in Seattle are July (only 7% rain chance) and July for optimal weather conditions. Avoid December when rain probability peaks at 50%.