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Seaside Weather in December

December in Seaside brings low temperatures, with highs of 9°C (48°F) and nights dropping to 2°C (36°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.

Rainfall in Seaside in December

As part of the rainy season, Seaside sees around 24 days of rain in December, with an average of 326 mm (13 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.

Temperature in Seaside in December

December in Seaside brings typical temperatures with highs around 9°C (48°F) and lows of 2°C (36°F). The month of December belongs to the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. At 2°C (36°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. 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 Seaside in December

The area sees fewer sunny days, with a projection of about 62 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.

December in Seaside has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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Check the conditions for any month of the year.

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

Seaside Temperature in December

Min TemperatureMin Temperature 2°C (36°F)  
Max TemperatureMax Temperature 9°C (48°F)  
Chance of RainChance of Rain 80%  
PrecipitationPrecipitation 326 mm (13 in)  
Rainy daysRainy days 24 days  
SunshineSunshine 62 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Astoria, the United States of America (22 KM, 14 Miles).

Best Places in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Seaside in December

Dress warmly and in layers for your trip to Seaside 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. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Seaside 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.

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

More climate data for Seaside