Oak Harbor (WA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Oak Harbor.
Climate overview of Oak Harbor
Oak Harbor, Washington State, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 20°C (68°F) in August, while winters cool to 8°C (46°F) in December.
Oak Harbor sees a moderate amount of rain/snowfall, totalling around 641 mm (25 in) per year. It experiences a distinct dry season from June to September, with pleasant summers and cold winters, creating some seasonal variation. The sunniest month is July, with 11.0 hours of sunshine per day on average.
Oak Harbor Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Oak Harbor - and find the best time to visit.
Monthly Temperature in Oak Harbor
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 (68°F) in August, the warmest time of the year, to a chilly 8°C (46°F) during cooler months like December.
At night, you can expect temperatures ranging from 11°C (52°F) in August to around 2°C (36°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Oak Harbor
Generally, Oak Harbor has a moderate amount of precipitation, averaging 641 mm (25 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, November it receives high rainfall, averaging 100 mm (3.9 in) of precipitation, recorded across 19 rainy days. In contrast, the driest month July brings less rainfall, with 15 mm (0.6 in) 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
The average number of days each month with precipitation
Sunshine Hours in Oak Harbor
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
Daily hours of sunshine
Daily percentage of sunshine
Best Time to Visit Oak Harbor
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Wettest months: January, February, March, October, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from June to September, with pleasant summers and cold winters
Frequently asked questions about the climate in Oak Harbor
What is the best time to visit Oak Harbor?
July and August typically offer the most optimal weather in Oak Harbor. In contrast, January, February, November and December tend to have less optimal conditions. Oak Harbor has a distinct dry season from June to September, with pleasant summers and cold winters.
What temperatures can I expect in Oak Harbor?
Daytime highs range from 8°C (46°F) in December to 20°C (68°F) in August. Nighttime lows range from 2°C (36°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Oak Harbor get?
Annual rainfall is around 641 mm (25 in). November is the wettest month with 100 mm (3.9 in), while July is the driest with 15 mm (0.6 in).
How sunny is Oak Harbor?
Oak Harbor receives around 2,221 hours of sunshine per year. July is the sunniest month with 331 hours, while December is the cloudiest with just 68 hours. Overall, Oak Harbor enjoys abundant sunshine.
Oak Harbor 3-Day Forecast
Oak Harbor (WA) 3-Day Forecast
Oak Harbor on the map
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