Ilwaco Weather in December

Ilwaco in December averages 9°C (48°F) during the day and 3°C (37°F) at night. December is part of the rainy season, and falls within the winter season, so frequent rainfall is typical.

Rainfall in Ilwaco in December

Ilwaco is in the rainy season in December, with rain on around 24 days and an average of 291 mm (11 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.

Temperature in Ilwaco in December

Daytime temperatures in Ilwaco reach 9°C (48°F) in December, dropping to 3°C (37°F) at night. December marks the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. At 3°C (37°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. This is usually the coldest month of the year, so be sure to prepare with plenty of winter gear.

Sunshine in Ilwaco in December

The month has fewer sunny days, with around 62 hours of sunshine.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Ilwaco. Our weather planner can help you explore destinations with more pleasant weather conditions.

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 Ilwaco's climate page.

Ilwaco Temperature in December

Min Temperature 3°C (37°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 80%  

Precipitation 291 mm (11 in)  

Rainy days 24 days  

Sunshine 62 hours *  

Percentage Sunshine *  

* Data from: Astoria, the United States of America (21 KM, 13 Miles).

What to Wear in Ilwaco in December

Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Ilwaco 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 Ilwaco's climate page.

More climate data for Ilwaco

Temperature Rainfall Sunshine

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