Shoreline Weather in December

During December, Shoreline experiences low daytime temperatures of 7°C (45°F) and cooler nights around 2°C (36°F). As part of the winter season, expect quite a bit of rainfall. Around 151 mm (5.9 in) is typical.

Rainfall in Shoreline in December

Historically, December sees about 20 days of rain, with a monthly average of 151 mm (5.9 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Shoreline in December

Daytime temperatures in Shoreline reach 7°C (45°F) in December, dropping to 2°C (36°F) at night. Experience the winter season in December. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With overnight lows of 2°C (36°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets. It's often the coldest month of the year, a perfect time to cozy up indoors. Make sure to bring along suitable winter clothing.

Sunshine in Shoreline in December

The month has fewer sunny days, with around 54 hours of sunshine.

December in Shoreline has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• August

• September
• October
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• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Shoreline's climate page.

Shoreline Temperature in December

Min Temperature 2°C (36°F)  

Max Temperature 7°C (45°F)  

Chance of Rain 68%  

Precipitation 151 mm (5.9 in)  

Rainy days 20 days  

Humidity 80% *  

Sunshine 54 hours *  

Percentage Sunshine 20% *  

* Data from: Seattle, the United States of America (34 KM, 21 Miles).

What to Wear in Shoreline in December

Dress warmly and in layers for your trip to Shoreline in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. It's going to pour! Pack a good poncho and prepare for very wet conditions. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in Shoreline in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Shoreline's climate page.

More climate data for Shoreline

Temperature Rainfall Sunshine Humidity

See the full Shoreline climate overview or explore weather in the United States of America.