Climate almanac

Oak Harbor

Washington, United States · 48.29°, -122.64°

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What is the climate like in Oak Harbor?

The best time to visit Oak Harbor is typically June – September, with trip comfort peaking in July (7.9/10). Oak Harbor is warmest in August, when daily highs average 64°F (18°C), and coolest in February, when lows fall to about 41°F (5°C). The wettest month is typically November and the driest is July; the year sees roughly 49 in (1246 mm) of precipitation.

  • Best time to visitJune – September — comfort peaks in July (7.9/10)
  • Warmest monthAugust — average high 64°F (18°C)
  • Coolest monthFebruary — average low 41°F (5°C)
  • Wettest monthNovember (7.3 in (186 mm))
  • Driest monthJuly (0.9 in (23 mm))
  • Annual precipitation49 in (1246 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromCoupeville 1 S, 10 km away (1895-2020)