Sun Hours and Solar Potential in Seattle, United States
Solar Overview
Seattle, situated in United States, offers 2,269 sun hours yearly, with maximum solar production in August. The 47.61° latitude location provides moderate seasonal solar variation, with spring and fall offering balanced production levels. Seattle offers moderate solar potential, making installations feasible with appropriate technology choices and financial incentives.
Geographic Impact
Located at 47.6062° latitude and -122.3321° longitude, Seattle's geographical position significantly impacts its solar potential. At 47.61°, solar panels benefit from reasonable sun angles year-round, though winter production remains 30-40% below summer peaks.
Rating Methodology
With 2,269 sun hours annually and 12.0°C average temperature, Seattle achieves a "Average" solar potential rating. Cold temperatures improve solar panel performance by 5-10% above standard ratings, though winter snow management should be considered. These conditions make solar economically viable, especially when electricity costs are high or incentives reduce initial investment.
Understanding the Data
The graph below demonstrates seasonal solar production patterns in Seattle. Solar production shows notable seasonal variation, with summer months providing 42% and winter delivering 16% of annual energy. This seasonal pattern is typical for locations at this latitude and influences the sizing and economics of solar installations.
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