Coupeville (WA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Coupeville.
Climate overview of Coupeville
Temperatures in Coupeville, Washington State, United States of America, vary greatly throughout the year. August is the hottest month at 23°C (73°F), while December is the coldest at 7°C (45°F).
The city receives around 602 mm (24 in) of rain/snowfall per year. It experiences a distinct dry season from June to September, with warm summers and cold winters. November is the wettest month and August the driest. July is the sunniest month, averaging 11.0 hours of sunshine per day.
Coupeville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Coupeville - and find the best time to visit.
Monthly Temperature in Coupeville
The climate in Coupeville is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 23°C (73°F) in August to a chilly 7°C (45°F) in December.
Nighttime temperatures range from 12°C (54°F) in August to 2°C (36°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Coupeville
Generally, Coupeville receives mid-range precipitation levels, with 602 mm (24 in) annually. The seasons in Coupeville bring significant changes in precipitation. The wettest month, November, receives moderate rainfall, with an average of 93 mm (3.7 in) of precipitation. This rainfall is distributed across 18 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 14 mm (0.6 in) over 4 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Coupeville 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 Coupeville
In Coupeville, summer days are longer and more sunny, with daily sunshine hours peaking at 11.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.3 hours per average 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 Coupeville
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Seasonal pattern: A distinct dry season from June to September, with warm summers and cold winters
Frequently asked questions about the climate in Coupeville
What is the best time to visit Coupeville?
July, August and September typically offer the most optimal weather in Coupeville. In contrast, January, February, November and December tend to have less optimal conditions. Coupeville has a distinct dry season from June to September, with warm summers and cold winters.
What temperatures can I expect in Coupeville?
Daytime highs range from 7°C (45°F) in December to 23°C (73°F) in August. Nighttime lows range from 2°C (36°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Coupeville get?
Annual rainfall is around 602 mm (24 in). November is the wettest month with 93 mm (3.7 in), while August is the driest with 14 mm (0.6 in).
How sunny is Coupeville?
Coupeville 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, Coupeville enjoys abundant sunshine.
Coupeville 3-Day Forecast
Coupeville (WA) 3-Day Forecast
Coupeville on the map
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