Seattle Weather Monthly: A Comprehensive Guide to the Emerald City’s Climate

Introduction

Hey readers! Welcome to our comprehensive guide to Seattle’s monthly weather. If you’re planning a trip to this beautiful Pacific Northwest city or simply curious about its climate, read on to discover everything you need to know. From the rainiest months to the sunniest days, we’ve got you covered.

Seattle is known for its mild, temperate climate, with relatively little temperature variation throughout the year. However, the city does experience distinct seasonal changes, each with its own unique weather patterns. So, whether you’re looking to avoid the rain or catch some rays, knowing what to expect each month will help you make the most of your Seattle adventure.

Monthly Weather Breakdown

January

  • Average temperature: 42°F (6°C)
  • Average rainfall: 5.08 inches (129 mm)

January is typically Seattle’s coldest month, with temperatures often dipping below freezing at night. Snowfall is not uncommon, especially at higher elevations. However, the days can still be quite pleasant, with occasional sunny spells and temperatures reaching the low 50s Fahrenheit.

February

  • Average temperature: 44°F (7°C)
  • Average rainfall: 4.54 inches (115 mm)

February is slightly warmer than January, but it’s still a wet month in Seattle. Rain is frequent, and temperatures can fluctuate wildly, with warm days followed by cold nights. Nevertheless, you may catch glimpses of sunshine and temperatures in the mid-50s.

March

  • Average temperature: 47°F (8°C)
  • Average rainfall: 3.68 inches (93 mm)

March marks the beginning of spring in Seattle, and the weather starts to improve. Rainfall decreases, and temperatures gradually rise. You can expect more sunny days and occasional showers. The average temperature hovers around 47°F, making it a pleasant month for outdoor activities.

April

  • Average temperature: 52°F (11°C)
  • Average rainfall: 2.34 inches (60 mm)

April is one of Seattle’s sunniest months, with an average of 7 hours of sunshine per day. Temperatures continue to rise, with highs reaching the low 60s. Rain becomes less frequent, and you can enjoy pleasant walks and picnics in the parks.

May

  • Average temperature: 57°F (14°C)
  • Average rainfall: 1.85 inches (47 mm)

May is a delightful month in Seattle, with warm and sunny days. The average temperature is a comfortable 57°F, and rainfall is minimal. It’s a great time to explore the city’s attractions or take a scenic drive along the waterfront.

June

  • Average temperature: 62°F (17°C)
  • Average rainfall: 1.36 inches (35 mm)

June is typically Seattle’s warmest and driest month. Temperatures often reach the mid-70s Fahrenheit, and the sun shines brightly. It’s the perfect time to enjoy outdoor concerts, festivals, and water activities.

July

  • Average temperature: 64°F (18°C)
  • Average rainfall: 1.24 inches (31 mm)

July is another warm and sunny month in Seattle. Temperatures remain in the mid-60s to low 70s Fahrenheit. The occasional rain shower can occur, but they usually pass quickly. It’s a great time to visit Pike Place Market or take a boat tour of the Puget Sound.

August

  • Average temperature: 63°F (17°C)
  • Average rainfall: 1.39 inches (35 mm)

August is very similar to July in terms of weather. Temperatures are warm and sunny, with occasional showers. It’s a great time to enjoy the city’s outdoor amenities, such as the Olympic Sculpture Park or Gas Works Park.

September

  • Average temperature: 58°F (14°C)
  • Average rainfall: 2.25 inches (57 mm)

September marks the transition to fall in Seattle. Temperatures start to cool slightly, but the weather remains pleasant. Rain becomes more frequent, but it’s usually not heavy. It’s a great time to explore the city’s vibrant neighborhoods and art galleries.

October

  • Average temperature: 52°F (11°C)
  • Average rainfall: 4.01 inches (102 mm)

October is a wetter month in Seattle, with more frequent rainfall. Temperatures continue to decline, with highs reaching the low 50s. However, you can still enjoy the city’s many indoor attractions, such as the Seattle Art Museum or the Pacific Science Center.

November

  • Average temperature: 46°F (8°C)
  • Average rainfall: 5.69 inches (145 mm)

November is one of Seattle’s rainiest months. Temperatures drop significantly, and it can be quite chilly at night. Snowfall is not uncommon at higher elevations. It’s a good time to stay indoors, cozy up with a good book, and enjoy the city’s coffeehouse culture.

December

  • Average temperature: 42°F (6°C)
  • Average rainfall: 4.94 inches (126 mm)

December is very similar to January in terms of weather. Temperatures are cold, and snowfall is possible, especially around the holidays. However, there are still occasional sunny days, and the city comes alive with festive cheer.

Seattle Weather Monthly Table

Month Average Temperature Average Rainfall
January 42°F (6°C) 5.08 inches (129 mm)
February 44°F (7°C) 4.54 inches (115 mm)
March 47°F (8°C) 3.68 inches (93 mm)
April 52°F (11°C) 2.34 inches (60 mm)
May 57°F (14°C) 1.85 inches (47 mm)
June 62°F (17°C) 1.36 inches (35 mm)
July 64°F (18°C) 1.24 inches (31 mm)
August 63°F (17°C) 1.39 inches (35 mm)
September 58°F (14°C) 2.25 inches (57 mm)
October 52°F (11°C) 4.01 inches (102 mm)
November 46°F (8°C) 5.69 inches (145 mm)
December 42°F (6°C) 4.94 inches (126 mm)

Conclusion

Well, readers, we hope you found this guide to Seattle weather monthly helpful. As you can see, Seattle’s climate is varied throughout the year, with each season offering its own unique charm. Whether you’re a nature lover, an art enthusiast, or simply looking for a fun and vibrant city to explore, Seattle has something to offer you every month of the year.

If you’re planning a trip to Seattle, be sure to check out our other articles on Seattle’s top attractions, restaurants, and events. We hope you have a wonderful time in the Emerald City!

FAQ about Seattle Weather Monthly

What is the average temperature in Seattle in January?

  • Around 41°F (5°C)

How much rain does Seattle get in February?

  • About 3.5 inches (9 cm)

What are the chances of snow in Seattle in March?

  • Very unlikely

How warm does it get in Seattle in April?

  • Up to 56°F (13°C) on average

What is the rainiest month in Seattle?

  • November, with about 7 inches (18 cm) of rain

How sunny is Seattle in June?

  • Typically gets about 8 hours of sunshine per day

What is the best time of year to visit Seattle for outdoor activities?

  • July and August, when the weather is warm and dry

How cold does it get in Seattle in December?

  • Around 42°F (6°C) on average

Does Seattle ever get tornadoes?

  • Very rare, but not impossible

How humid is it in Seattle?

  • Relatively low humidity, averaging around 65%