Solar Energy & Solar Power Resources

Solar Power in 94903 (San Rafael, CA)

Solar Energy in 94903

Sorry, historical solar radition values for 94903 are currently unavailable, please check back later.

Solar Panels in 94903

Solar panels in 94903 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 94903

The total length of the day in 94903 (San Rafael, CA) today (May 21, 2026) will be 14 hours and 27 minutes. [More]

Solar Energy in 94903 (San Rafael, CA)

Solar Energy Data for 94903

See the chart below to see how different types of solar panel installations compare in 94903.

Historical solar power output data for San Rafael is not currently available.

Solar Energy Analysis for 94903

Sorry, it is not possible to complete our solar energy analysis for 94903 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 94903

Solar Radiation Data in 94903

See the chart below for monthly solar radiation levels in 94903.

Sorry, data is not currently available.

Solar Radiation Analysis for 94903

Sorry, it is not possible to complete our solar radiation analysis for 94903 at this time.

Historical solar radiation data for 94903 is not currently available.

Please check back later.

Solar Power Comparison: 94903 vs. the U.S.

Solar Power Levels in 94903

Sorry, solar radiation data for 94903 is not currently available.

Solar Power: 94903 vs. the U.S.

Below is a month-by-month comparison of how average 94903 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 California is not currently available.

Solar Data & Statistics for 94903

Sunrise / Sunset in 94903

Sunrise/Sunset for May 21, 2026 ^[2]
- Sunrise: 5:53 am
- Sunset: 8:20 pm
- Length of Day: 14:27

Best Months for Solar in 94903

Monthly data not currently available.

Solar Panel Installs in 94903

We do not have data on solar panel installations in ZIP Code 94903 at the current time.

Solar Power Output in 94903

The Power of Solar in 94903

Monthly AC solar system output averages for 94903. Month-by-month solar power, as ranked by AC output, in 94903. ^[2]

AC output data is not currently available.

Solar Output Analysis for 94903

Sorry, it is not possible to complete our solar radiation analysis for 94903 at this time.

Historical solar radiation data for 94903 is not currently available.

Please check back later.

Weather Forecast for 94903 ^[5]

Thu May 21

71°F

Scattered Clouds
Min: 46°F
Max: 71°F

Gentle Breeze: 10 mps SW
Precip.: n/a
Humidity: 49%
Cloud cover: 27%

Fri May 22

63°F

Sky Is Clear
Min: 44°F
Max: 63°F

Gentle Breeze: 10 mps SW
Precip.: n/a
Humidity: 60%
Cloud cover: 0%

Sat May 23

58°F

Sky Is Clear
Min: 46°F
Max: 59°F

Gentle Breeze: 11 mps SSW
Precip.: n/a
Humidity: 64%
Cloud cover: 0%

Sun May 24

60°F

Scattered Clouds
Min: 45°F
Max: 60°F

Gentle Breeze: 9 mps SW
Precip.: n/a
Humidity: 58%
Cloud cover: 27%

Mon May 25

60°F

Sky Is Clear
Min: 44°F
Max: 60°F

Gentle Breeze: 10 mps W
Precip.: n/a
Humidity: 57%
Cloud cover: 0%

Tue May 26

62°F

Few Clouds
Min: 44°F
Max: 62°F

Gentle Breeze: 10 mps W
Precip.: n/a
Humidity: 54%
Cloud cover: 24%

More about 94903

About 94903

The ZIP code 94903 is associated with the city of San Rafael in Marin County in California.

94903 Solar Energy & Power

To learn more about solar energy and solar power in 94903, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.