Seaside Oregon Climate Data

Monthly Average Climate Data for Seaside Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January39.2 °F49.9 °F10.77 in.
February38.9 °F51.6 °F8.52 in.
March40.5 °F53.5 °F8.59 in.
April42.0 °F53.9 °F6.67 in.
May46.9 °F58.1 °F3.74 in.
June49.9 °F60.0 °F2.68 in.
July53.7 °F64.7 °F0.9 in.
August53.5 °F64.7 °F1.3 in.
September51.6 °F64.8 °F2.7 in.
October46.9 °F60.0 °F6.75 in.
November42.9 °F54.3 °F11.14 in.
December38.8 °F49.6 °F11.59 in.
Annual45.4 °F57.1 °F75.35 in.

Climate Data for Seaside Oregon

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 9a : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 9a : 20°F to 25°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate