Shoreline (WA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Shoreline.
Climate overview of Shoreline
Shoreline, Washington State, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 24°C (75°F) in August, while winters cool to 7°C (45°F) in December.
With around 1006 mm (40 in) of annual rain/snowfall, Shoreline has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has a distinct dry season from July to August. The wettest month is November. Sunshine peaks in July, when the city sees around 10.4 hours of sunshine per day.
Shoreline Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Shoreline — and find the best time to visit.
Monthly Temperature in Shoreline
Depending on the time of the year, temperatures range from comfortable to chilly in Shoreline. Average daytime temperatures reach a comfortable 24°C (75°F) in August. In December, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).
At night, temperatures range from around 13°C (55°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 Shoreline
Shoreline has a relatively rain/snowy climate with high precipitation levels, averaging 1006 mm (40 in) of rain/snowfall annually. Shoreline can be quite wet during November, receiving approximately 164 mm (6.5 in) of precipitation over 21 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 18 mm (0.7 in) of precipitation spread across 6 rainy days days. For more details, please visit our Shoreline 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 Shoreline
Shoreline can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.4 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.8 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
Humidity in Shoreline by Month
The relative humidity is high throughout the year in Shoreline.
The city experiences its highest humidity in December, reaching 80%. In July, the humidity drops to its lowest level at 65%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Shoreline
Rainfall during this time ranges from 18 mm (0.7 in) in July to 50 mm (2 in) in September. This means you can expect a mix of sunny days and occasional showers.
The rainy season falls during November, bringing heavy precipitation. Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Shoreline
What is the best time to visit Shoreline?
June, July, August and September typically offer the most optimal weather in Shoreline. In contrast, January, February, March, November and December tend to have less optimal conditions. Shoreline has a distinct dry season from July to August.
What temperatures can I expect in Shoreline?
Daytime highs range from 7°C (45°F) in December to 24°C (75°F) in August. Nighttime lows range from 2°C (36°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Shoreline get?
Annual rainfall is around 1006 mm (40 in). November is the wettest month with 164 mm (6.5 in), while July is the driest with 18 mm (0.7 in).
How sunny is Shoreline?
Shoreline receives around 2,171 hours of sunshine per year. July is the sunniest month with 312 hours, while December is the cloudiest with just 54 hours. Overall, Shoreline enjoys abundant sunshine.
Shoreline 3-Day Forecast
Shoreline (WA) 3-Day Forecast
Shoreline on the map
Shoreline is highlighted — select any city to see its climate.
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