Solar Energy & Solar Power Resources

Solar Power in 78257 (San Antonio, TX)

Solar Energy in 78257

Sorry, historical solar radition values for 78257 are currently unavailable, please check back later.

Solar Panels in 78257

Solar panels in 78257 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 78257

The total length of the day in 78257 (San Antonio, TX) today (November 16, 2025) will be 10 hours and 41 minutes. [More]

Solar Energy in 78257 (San Antonio, TX)

Solar Energy Data for 78257

See the chart below to see how different types of solar panel installations compare in 78257.

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

Solar Energy Analysis for 78257

Sorry, it is not possible to complete our solar energy analysis for 78257 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 78257

Solar Radiation Data in 78257

See the chart below for monthly solar radiation levels in 78257.

Sorry, data is not currently available.

Solar Radiation Analysis for 78257

Sorry, it is not possible to complete our solar radiation analysis for 78257 at this time.

Historical solar radiation data for 78257 is not currently available.

Please check back later.

Solar Power Comparison: 78257 vs. the U.S.

Solar Power Levels in 78257

Sorry, solar radiation data for 78257 is not currently available.

Solar Power: 78257 vs. the U.S.

Below is a month-by-month comparison of how average 78257 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 Texas is not currently available.

Solar Data & Statistics for 78257

Sunrise / Sunset in 78257

Sunrise/Sunset for November 16, 2025 ^[2]
- Sunrise: 6:58 am
- Sunset: 5:39 pm
- Length of Day: 10:41

Best Months for Solar in 78257

Monthly data not currently available.

Solar Panel Installs in 78257

We do not have data on solar panel installations in ZIP Code 78257 at the current time.

Solar Power Output in 78257

The Power of Solar in 78257

Monthly AC solar system output averages for 78257. Month-by-month solar power, as ranked by AC output, in 78257. ^[2]

AC output data is not currently available.

Solar Output Analysis for 78257

Sorry, it is not possible to complete our solar radiation analysis for 78257 at this time.

Historical solar radiation data for 78257 is not currently available.

Please check back later.

Weather Forecast for 78257 ^[5]

Sun Nov 16

77°F

Scattered Clouds
Min: 66°F
Max: 86°F

Gentle Breeze: 9 mps S
Precip.: n/a
Humidity: 63%
Cloud cover: 30%

Mon Nov 17

81°F

Broken Clouds
Min: 65°F
Max: 85°F

Moderate breeze: 13 mps SSE
Precip.: n/a
Humidity: 52%
Cloud cover: 66%

Tue Nov 18

77°F

Light Rain
Min: 70°F
Max: 86°F

Gentle Breeze: 11 mps S
Precip.: Chance of Rain
Humidity: 68%
Cloud cover: 99%

Wed Nov 19

75°F

Light Rain
Min: 69°F
Max: 85°F

Moderate breeze: 14 mps SE
Precip.: Chance of Rain
Humidity: 76%
Cloud cover: 99%

Thu Nov 20

76°F

Light Rain
Min: 69°F
Max: 76°F

Fresh Breeze: 18 mps SSE
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 100%

Fri Nov 21

75°F

Moderate Rain
Min: 63°F
Max: 77°F

Moderate breeze: 13 mps W
Precip.: Chance of Rain
Humidity: 31%
Cloud cover: 22%

More about 78257

About 78257

The ZIP code 78257 is associated with the city of San Antonio in Bexar County in Texas.

78257 Solar Energy & Power

To learn more about solar energy and solar power in 78257, or for more solar-related resources for TX, check out the U.S. Energy Information Administration.