ClimateForecastNovemberDecember >>

Ilwaco (WA) Climate by Month

Temperatures see a moderate degree of fluctuation, transitioning from pleasant conditions to cold. It is also known for its large amounts of rain/snowfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

In Ilwaco, seasonal changes bring about a moderate variation in temperatures. Typically, daytime temperatures range from a pleasant 19°C in August to a chilly 9°C in the coolest month, December. Nights are cooler, with temperatures generally dropping to 3°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Ilwaco is known for its substantial rain/snowfall, with annual precipitation reaching 1937 mm. The climate in Ilwaco shows significant variation throughout the year. Expect heavy rainfall in November, with an average of 302 mm of precipitation over 22 rainy days. In contrast, July offers drier and sunnier days, with around 28 mm of rainfall over 9 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Ilwaco serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 11.0 hours of sunshine daily, and embrace the darker days in December, offering only 2.1 hours of daily sunlight.

Monthly hours of sunshine

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

Daily hours of sunshine

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

The best time of year to visit Ilwaco in the United States of America

Other facts from our historical weather data:
  • When is the rainy season in Ilwaco?
    Rainy season in Ilwaco occurs in the months of January, February, March, October, November and December.
  • Which is the warmest month in Ilwaco?
    August has an average maximum temperature of 19°C and is the warmest month of the year.
  • Which is the coldest month in Ilwaco?
    The coldest month is December with an average maximum temperature of 9°C.
  • Which is the wettest month in Ilwaco?
    November tops the wettest month list with 302 mm of rainfall.
  • Which is the driest month in Ilwaco?
    July is the driest month with 28 mm of precipitation.
  • Which is the sunniest month in Ilwaco?
    July is the sunniest month with an average of 330 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Ilwaco (WA)

    Thu   Nov 21
    12°C | 8°C
    S 22 km/h
    16 mm
    broken clouds and rain

    broken clouds and rain

    Fri   Nov 22
    13°C | 9°C
    S 54 km/h
    15 mm
    partly cloudy and rain

    partly cloudy and rain

    Sat   Nov 23
    11°C | 8°C
    S 36 km/h
    21 mm
    overcast and heavy rain

    overcast and heavy rain