Solar Energy & Solar Power Resources

Solar Power in 98178 (Seattle, WA)

Solar Energy in 98178

Sorry, historical solar radition values for 98178 are currently unavailable, please check back later.

Solar Panels in 98178

Solar panels in 98178 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 98178

The total length of the day in 98178 (Seattle, WA) today (July 13, 2025) will be 15 hours and 41 minutes. [More]

Solar Energy in 98178 (Seattle, WA)

Solar Energy Data for 98178

See the chart below to see how different types of solar panel installations compare in 98178.

Historical solar power output data for Seattle is not currently available.

Solar Energy Analysis for 98178

Sorry, it is not possible to complete our solar energy analysis for 98178 at this time.

Please check back later.

Solar Energy Glossary

Global Horizontal Irradiance (GHI)

Global Horizontal Irradiance: The total amount of solar radiation that is received per unit area by a surface that is always positioned in a horizontal manner.

Direct Normal Irradiance (DNI)

Direct Normal Irradiance: The total amount of solar radiation received per unit area by a surface that is always perpendicular to the sun rays that come in a straight line from the direction of the sun at its current position in the sky.

Average Tilt at Latitude (ATaL)

Average Tilt at Latitude: The total amount of solar radiation received per unit area by a surface that is tilted toward the equator at an angle equal to the current latitude. ATaL will often produce the optimum energy output.

Solar Radiation Levels in 98178

Solar Radiation Data in 98178

See the chart below for monthly solar radiation levels in 98178.

Sorry, data is not currently available.

Solar Radiation Analysis for 98178

Sorry, it is not possible to complete our solar radiation analysis for 98178 at this time.

Historical solar radiation data for 98178 is not currently available.

Please check back later.

Solar Power Comparison: 98178 vs. the U.S.

Solar Power Levels in 98178

Sorry, solar radiation data for 98178 is not currently available.

Solar Power: 98178 vs. the U.S.

Below is a month-by-month comparison of how average 98178 solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). ^[1]

Sorry, solar radiation data for Washington is not currently available.

Solar Data & Statistics for 98178

Sunrise / Sunset in 98178

Sunrise/Sunset for July 13, 2025 ^[2]
- Sunrise: 5:24 am
- Sunset: 9:05 pm
- Length of Day: 15:41

Best Months for Solar in 98178

Monthly data not currently available.

Solar Panel Installs in 98178

We do not have data on solar panel installations in ZIP Code 98178 at the current time.

Solar Power Output in 98178

The Power of Solar in 98178

Monthly AC solar system output averages for 98178. Month-by-month solar power, as ranked by AC output, in 98178. ^[2]

AC output data is not currently available.

Solar Output Analysis for 98178

Sorry, it is not possible to complete our solar radiation analysis for 98178 at this time.

Historical solar radiation data for 98178 is not currently available.

Please check back later.

Weather Forecast for 98178 ^[5]

Sun Jul 13

81°F

Sky Is Clear
Min: 60°F
Max: 87°F

Gentle Breeze: 9 mps NE
Precip.: n/a
Humidity: 51%
Cloud cover: 1%

Mon Jul 14

68°F

Overcast Clouds
Min: 60°F
Max: 77°F

Gentle Breeze: 11 mps NNW
Precip.: n/a
Humidity: 58%
Cloud cover: 100%

Tue Jul 15

82°F

Sky Is Clear
Min: 56°F
Max: 86°F

Gentle Breeze: 9 mps NNW
Precip.: n/a
Humidity: 32%
Cloud cover: 0%

Wed Jul 16

94°F

Sky Is Clear
Min: 62°F
Max: 94°F

Gentle Breeze: 9 mps NNW
Precip.: n/a
Humidity: 19%
Cloud cover: 0%

Thu Jul 17

91°F

Sky Is Clear
Min: 61°F
Max: 91°F

Gentle Breeze: 8 mps NNW
Precip.: n/a
Humidity: 22%
Cloud cover: 0%

Fri Jul 18

85°F

Sky Is Clear
Min: 59°F
Max: 85°F

Gentle Breeze: 9 mps SW
Precip.: n/a
Humidity: 29%
Cloud cover: 0%

More about 98178

About 98178

The ZIP code 98178 is associated with the city of Seattle in King County in Washington.

98178 Solar Energy & Power

To learn more about solar energy and solar power in 98178, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.