Lopez Island Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Lopez Island.

Climate overview of Lopez Island

Lopez Island, United States of America, sees big temperature differences between seasons, with August peaking at 22°C (72°F) and December dropping to 8°C (46°F).

With around 657 mm (26 in) of annual rain/snowfall, the city has moderate precipitation levels. November is the wettest month and July the driest. It also has a distinct dry season from June to September, with pleasant summers and cold winters. The sunniest month is July, with 11.0 hours of sunshine per day on average.

Lopez Island Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Lopez Island - and find the best time to visit.

Monthly Temperature in Lopez Island

Visitors to Lopez Island can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a pleasant 22°C (72°F) in August to a chilly 8°C (46°F) in the coolest month, December.

Nights vary from 11°C (52°F) in August to around 2°C (36°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Lopez Island

Generally, Lopez Island experiences moderate precipitation patterns, averaging 657 mm (26 in) yearly. The climate in Lopez Island shows significant variation throughout the year. Expect high rainfall in November, the wettest month, with an average of 106 mm (4.2 in) of precipitation over 19 rainy days.

In contrast, the driest month July offers drier and sunnier days, with around 14 mm (0.6 in) of rainfall over 5 rainy days. For more details, please visit our Lopez Island Precipitation page.

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

Sunshine Hours in Lopez Island

For those who appreciate different seasons, Lopez Island serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 11.0 hours of sunshine daily, and embrace the darker days in December, offering only 2.3 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Friday Harbor, the United States of America (10 KM, 6 Miles).

Daily hours of sunshine

Data from: Friday Harbor, the United States of America (10 KM, 6 Miles).

Best Time to Visit Lopez Island

The most comfortable overall weather for exploring Lopez Island is usually found in June, July, August and September. Conditions are generally least comfortable in January, February, November and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: June, July, August and September
  • 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 Lopez Island

What is the best time to visit Lopez Island?

June, July, August and September typically offer the most optimal weather in Lopez Island. In contrast, January, February, November and December tend to have less optimal conditions. Lopez Island has a distinct dry season from June to September, with pleasant summers and cold winters.

What temperatures can I expect in Lopez Island?

Daytime highs range from 8°C (46°F) in December to 22°C (72°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 Lopez Island get?

Annual rainfall is around 657 mm (26 in). November is the wettest month with 106 mm (4.2 in), while July is the driest with 14 mm (0.6 in).

How sunny is Lopez Island?

Lopez Island 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, Lopez Island enjoys abundant sunshine.

Lopez Island 3-Day Forecast

Lopez Island on the map

Lopez Island is highlighted - select any city to see its climate.

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