Arlington (WA) Weather & Climate: Best Time to Visit

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

Climate overview of Arlington

Temperatures in Arlington, Washington State, United States of America, vary greatly throughout the year. August is the hottest month at 24°C (75°F), while December is the coldest at 7°C (45°F).

The city receives considerable rain/snowfall, with around 1386 mm (55 in) annually. November is the wettest month. It has distinct dry (July to August) and wet (November to January) seasons. The most sunshine falls in July, with an average of 9.4 hours of daily sunshine.

Arlington Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Arlington — and find the best time to visit.

Monthly Temperature in Arlington

The climate in Arlington is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 24°C (75°F) in August to a chilly 7°C (45°F) in the coolest month, December.

Nights vary from 11°C (52°F) in August to around 0°C (32°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Arlington

Arlington has a notably wet climate with abundant precipitation, recording 1386 mm (55 in) of rain/snowfall per year. The climate in Arlington shows significant variation throughout the year. Expect heavy rainfall in November, the wettest month, with an average of 199 mm (7.8 in) of precipitation over 25 rainy days.

In contrast, the driest month July offers drier and sunnier days, with around 27 mm (1.1 in) of rainfall over 8 rainy days. For more details, please visit our Arlington Precipitation page.

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

Sunshine Hours in Arlington

For those who appreciate different seasons, Arlington serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.4 hours of sunshine daily, and embrace the darker days in November, offering only 2.0 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Bellingham, the United States of America (68 KM, 42 Miles).

Daily hours of sunshine

Data from: Bellingham, the United States of America (68 KM, 42 Miles).

Best Time to Visit Arlington

Arlington's weather is most enjoyable during June, July, August and September, with comfortable temperatures from 20°C (69°F) to 24°C (76°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 27 mm (1.1 in) and 73 mm (2.9 in), providing a good balance of sunny and rainy days.

The wettest months are January, March, November and December, when precipitation is at its highest.

Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.

Frequently asked questions about the climate in Arlington

What is the best time to visit Arlington?

June, July, August and September typically offer the most optimal weather in Arlington. In contrast, January, February, March, November and December tend to have less optimal conditions. Arlington has distinct dry (July to August) and wet (November to January) seasons.

What temperatures can I expect in Arlington?

Daytime highs range from 7°C (45°F) in December to 24°C (75°F) in August. Nighttime lows range from 0°C (32°F) to 11°C (52°F). Temperatures vary considerably through the year.

How much rain does Arlington get?

Annual rainfall is around 1386 mm (55 in). November is the wettest month with 199 mm (7.8 in), while July is the driest with 27 mm (1.1 in).

How sunny is Arlington?

Arlington receives around 1,887 hours of sunshine per year. July is the sunniest month with 281 hours, while November is the cloudiest with just 61 hours.

Arlington 3-Day Forecast

Arlington (WA) 3-Day Forecast

Arlington on the map

Arlington is highlighted — select any city to see its climate.

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