TODAY OCT21
TEMPERATURE44
HUMIDITY100
PRESSURE30
WIND COND.160 4.7
  • 5745Mon
  • 5648Tue70%50%
  • 5651Wed20%
  • 5650Thu
  • 5850Fri
daynightWeather update from Astoria, Astoria Regional Airport at
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Seaside Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January36°F51°F43°F10.5"
February37°F53°F44°F6.7"
March39°F55°F46°F9.5"
April40°F57°F49°F6.0"
May45°F63°F53°F4.1"
June50°F66°F57°F2.4"
July53°F69°F60°F1.0"
August53°F71°F61°F0.8"
September50°F70°F59°F3.3"
October45°F63°F53°F7.4"
November40°F55°F47°F12.7"
December36°F49°F42°F11.3"

Did you know?

  • The highest monthly average temperature in Seaside for August is 61 degrees.
  • The lowest monthly average temperature in Seaside for December is 42 degrees.
  • The most monthly precipitation in Seaside occurs in November with 12.7 inches.
  • The air quality index in Seaside is 55% better than the national average.
  • The pollution index in Seaside is 65% better than the national average.

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Compare Seaside, OR Weather To Other Cities

Seaside air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexSeasideOregonNational
Air quality index223250
Pollution index1,735,0905,374,5275,066,862

Seaside air quality information

MeasurementTotal
Days measured365
Days with good air quality317
Days with moderate air quality48
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Seaside air quality information

PollutantTotal
Arsenic0.010%
Benzene0.020%
Carbon Tetrachloride0.010%
Lead0.010%
Mercury0.002%

Average monthly Seaside temperature with heat index

Seaside monthly precipitation with daily maximum

Seaside monthly snow depth with daily maximum

Seaside monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Cannon Beach, OR1,6732256%
Gearhart, OR1,4982256%
Jeffers Gardens, OR2992256%
Astoria, OR9,5952256%
Warrenton, OR5,2602256%
Seaside, OR6,5142256%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Rossford, OH6,5143628%
Pimmit Hills, VA6,511492%
Silver Lakes, CA6,5108570%
Spring Lake Park, MN6,5194412%
Ishpeming, MI6,509884%
Seaside, OR6,5142256%
Source: The Seaside, OR weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.