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Oak Harbor (WA) Weather and Climate: A Comprehensive Guide

The temperature in Oak Harbor can vary greatly throughout the year. The temperatures shift from pleasant to cold. It receives mid-range precipitation levels. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from pleasant to chilly in Oak Harbor. Average maximum daytime temperatures range from a pleasant 20°C in August, the warmest time of the year, to a chilly 8°C during cooler months like December.

At night, temperatures typically drop to an average of around 2°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Oak Harbor has a moderate amount of precipitation, averaging 641 mm of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, November receives high rainfall, averaging 100 mm of precipitation, recorded across 19 rainy days. In contrast, the drier season, July brings less rainfall, with 15 mm over 5 rainy days. For more details, please visit our Oak Harbor Precipitation page.

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

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Oak Harbor. While July receives considerable daily sunshine with up to 11.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.3 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Friday Harbor, the United States of America (38 KM, 23 Miles).

Daily hours of sunshine

Data from: Friday Harbor, the United States of America (38 KM, 23 Miles).

Forecast for Oak Harbor (WA)

Sat   Dec 21
14°C | 6°C
SE 11 m/s
1.4 mm
broken clouds and rain

broken clouds and rain

Sun   Dec 22
11°C | 8°C
SE 9 m/s
6.4 mm
overcast and rain

overcast and rain

Mon   Dec 23
12°C | 8°C
SE 7 m/s
3 mm
broken clouds and small chance of slight rain

broken clouds and small chance of slight rain

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

Other facts from our historical weather data:
  • Does Oak Harbor have a dry season?
    Yes, the months of July and August are very dry.
  • Which is the warmest month in Oak Harbor?
    August has an average maximum temperature of 20°C and is the warmest month of the year.
  • Which is the coldest month in Oak Harbor?
    The coldest month is December with an average maximum temperature of 8°C.
  • Which is the wettest month in Oak Harbor?
    November tops the wettest month list with 100 mm of rainfall.
  • Which is the driest month in Oak Harbor?
    July is the driest month with 15 mm of precipitation.
  • Which is the sunniest month in Oak Harbor?
    July is the sunniest month with an average of 331 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.