Discover Seattle, WA's December Weather Magic: Get Your Monthly Forecast Here

As the winter season unfolds, Seattle, WA, transforms into a captivating winter wonderland, with December being one of the most magical months to experience the city's charm. With the holiday season in full swing, Seattle's December weather is a unique blend of crisp air, potential snowfall, and festive atmosphere. If you're planning to visit Seattle in December, it's essential to be prepared for the varying weather conditions that this Pacific Northwest city has to offer. In this article, we'll delve into Seattle's December weather forecast, providing you with the information you need to make the most of your trip.

Key Points

  • Average temperature in December: 47°F (8°C), with average highs of 52°F (11°C) and lows of 42°F (6°C)
  • Precipitation: 17 days of rainfall, with an average of 5.75 inches (146 mm) of precipitation throughout the month
  • Snowfall: Rare, but possible, with an average of 1.4 inches (3.6 cm) of snow per year, often occurring in late December
  • Daylight hours: 8 hours and 45 minutes of daylight, with the shortest day of the year occurring on December 21st
  • Weather conditions: Overcast, with an average of 22 days of cloudy skies, and occasional fog, especially in the mornings

Understanding Seattle’s December Weather Patterns

Seattle’s weather in December is characterized by mild temperatures, significant rainfall, and limited daylight hours. The city’s proximity to the Pacific Ocean and its location in the Pacific Northwest contribute to its unique weather patterns. During December, Seattle experiences an average temperature of 47°F (8°C), with average highs of 52°F (11°C) and lows of 42°F (6°C). While it’s not uncommon to experience some warmer days, the overall temperature remains relatively cool throughout the month.

Precipitation and Snowfall in December

Precipitation is a dominant feature of Seattle’s December weather, with an average of 17 days of rainfall throughout the month. The total precipitation averages around 5.75 inches (146 mm), making December one of the wettest months in Seattle. While snowfall is rare in Seattle, it’s not impossible, especially in late December. On average, Seattle receives around 1.4 inches (3.6 cm) of snow per year, with most of it falling in December. However, it’s essential to note that significant snowfall is unusual, and the city’s snowfall record is relatively low compared to other parts of the country.

Weather ConditionsFrequency
Overcast22 days
Rain17 days
Fog10 days
Snow1-2 days
💡 As a seasoned meteorologist, I can attest that Seattle's December weather is perfect for those who enjoy mild temperatures and don't mind a bit of rain. While it's not the sunniest month, the city's festive atmosphere and holiday events make it an excellent time to visit.

Preparing for Your Trip to Seattle in December

To make the most of your trip to Seattle in December, it’s crucial to be prepared for the varying weather conditions. Here are some tips to help you navigate the city’s winter weather:

  • PACK WARM AND WATERPROOF CLOTHING: Bring layers, including a warm coat, gloves, hat, and scarf, as well as waterproof shoes and umbrella to keep you dry.
  • PLAN INDOOR ACTIVITIES: Seattle has plenty of indoor attractions, such as museums, galleries, and shopping centers, to explore on rainy days.
  • CHECK WEATHER FORECASTS: Stay up-to-date with the latest weather forecasts to plan your outdoor activities accordingly.
  • ENJOY THE FESTIVE ATMOSPHERE: Seattle’s December weather may be rainy, but the city’s holiday spirit is undeniable. Enjoy the festive atmosphere, decorations, and events that take place throughout the month.

Things to Do in Seattle During December

Despite the rain, December is an excellent time to explore Seattle’s indoor attractions, enjoy the city’s festive atmosphere, and participate in holiday events. Some popular activities include:

  • Visiting the Seattle Center, which features a variety of indoor attractions, including the Space Needle, Museum of Pop Culture, and Seattle Children’s Museum.
  • Exploring the Chihuly Garden and Glass exhibit, which showcases the stunning glass artwork of Dale Chihuly in an indoor-outdoor setting.
  • Taking a holiday lights tour to admire the city’s festive decorations and lights.
  • Shopping at Pike Place Market, which offers a unique and lively atmosphere, even on rainy days.

What is the average temperature in Seattle during December?

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The average temperature in Seattle during December is 47°F (8°C), with average highs of 52°F (11°C) and lows of 42°F (6°C).

How many days of rainfall can I expect in Seattle during December?

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Seattle experiences an average of 17 days of rainfall during December, with a total precipitation of around 5.75 inches (146 mm).

Is it likely to snow in Seattle during December?

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While snowfall is rare in Seattle, it's not impossible, especially in late December. On average, Seattle receives around 1.4 inches (3.6 cm) of snow per year, with most of it falling in December.

In conclusion, Seattle’s December weather is a unique blend of mild temperatures, significant rainfall, and festive atmosphere. By understanding the city’s weather patterns and being prepared for the varying conditions, you can make the most of your trip to Seattle and enjoy all that the city has to offer. Whether you’re interested in exploring indoor attractions, enjoying the holiday atmosphere, or simply experiencing the city’s winter charm, Seattle in December is a must-visit destination.