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Seaside (OR) Climate by Month

Seaside experiences great temperature shifts. The city's weather can transition from pleasant days to cold weather. It is also known for its large amounts of rain/snowfall. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

The climate in Seaside is known for significant temperature differences throughout the year, making the weather dynamic. Typically, daytime temperatures range from a pleasant 21°C in August to a chilly 9°C in the coolest month, December. Nights are cooler, with temperatures generally dropping to 2°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Seaside has a notably wet climate with abundant precipitation, recording 2250 mm of rain/snowfall per year. The climate in Seaside shows significant variation throughout the year. Expect heavy rainfall in November, with an average of 363 mm of precipitation over 23 rainy days. In contrast, July offers drier and sunnier days, with around 29 mm of rainfall over 8 rainy days.

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

Sunshine over the year

For those who appreciate different seasons, Seaside 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 (22 KM, 14 Miles).

Daily hours of sunshine

Data from: Astoria, the United States of America (22 KM, 14 Miles).

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

During the months of July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Seaside?
    August has an average maximum temperature of 21°C and is the warmest month of the year.
  • Which is the coldest month in Seaside?
    The coldest month is December with an average maximum temperature of 9°C.
  • Which is the wettest month in Seaside?
    November tops the wettest month list with 363 mm of rainfall.
  • Which is the driest month in Seaside?
    July is the driest month with 29 mm of precipitation.
  • Which is the sunniest month in Seaside?
    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 Seaside (OR)

    Fri   Dec 06
    13°C | 2°C
    S 18 km/h
    broken clouds and no rain

    broken clouds and no rain

    Sat   Dec 07
    12°C | 5°C
    SW 22 km/h
    23 mm
    broken clouds and rain

    broken clouds and rain

    Sun   Dec 08
    10°C | 3°C
    W 22 km/h
    13 mm
    partly cloudy and rain

    partly cloudy and rain