Solar Energy & Solar Power Resources

Solar Power in 78243 (San Antonio, TX)

Solar Energy in 78243

Sorry, historical solar radition values for 78243 are currently unavailable, please check back later.

Solar Panels in 78243

Solar panels in 78243 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 78243

The total length of the day in 78243 (San Antonio, TX) today (December 15, 2025) will be 10 hours and 19 minutes. [More]

Solar Energy in 78243 (San Antonio, TX)

Solar Energy Data for 78243

See the chart below to see how different types of solar panel installations compare in 78243.

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

Solar Energy Analysis for 78243

Sorry, it is not possible to complete our solar energy analysis for 78243 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 78243

Solar Radiation Data in 78243

See the chart below for monthly solar radiation levels in 78243.

Sorry, data is not currently available.

Solar Radiation Analysis for 78243

Sorry, it is not possible to complete our solar radiation analysis for 78243 at this time.

Historical solar radiation data for 78243 is not currently available.

Please check back later.

Solar Power Comparison: 78243 vs. the U.S.

Solar Power Levels in 78243

Sorry, solar radiation data for 78243 is not currently available.

Solar Power: 78243 vs. the U.S.

Below is a month-by-month comparison of how average 78243 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 78243

Sunrise / Sunset in 78243

Sunrise/Sunset for December 15, 2025 ^[2]
- Sunrise: 7:19 am
- Sunset: 5:38 pm
- Length of Day: 10:19

Best Months for Solar in 78243

Monthly data not currently available.

Solar Panel Installs in 78243

We do not have data on solar panel installations in ZIP Code 78243 at the current time.

Solar Power Output in 78243

The Power of Solar in 78243

Monthly AC solar system output averages for 78243. Month-by-month solar power, as ranked by AC output, in 78243. ^[2]

AC output data is not currently available.

Solar Output Analysis for 78243

Sorry, it is not possible to complete our solar radiation analysis for 78243 at this time.

Historical solar radiation data for 78243 is not currently available.

Please check back later.

Weather Forecast for 78243 ^[5]

Mon Dec 15

50°F

Overcast Clouds
Min: 36°F
Max: 51°F

Gentle Breeze: 8 mps NE
Precip.: n/a
Humidity: 28%
Cloud cover: 100%

Tue Dec 16

57°F

Light Rain
Min: 46°F
Max: 60°F

Light breeze: 7 mps SSE
Precip.: Chance of Rain
Humidity: 72%
Cloud cover: 100%

Wed Dec 17

62°F

Light Rain
Min: 59°F
Max: 66°F

Light breeze: 4 mps ENE
Precip.: Chance of Rain
Humidity: 97%
Cloud cover: 100%

Thu Dec 18

75°F

Sky Is Clear
Min: 60°F
Max: 81°F

Fresh Breeze: 22 mps NNE
Precip.: n/a
Humidity: 57%
Cloud cover: 1%

Fri Dec 19

58°F

Few Clouds
Min: 47°F
Max: 64°F

Moderate breeze: 14 mps NNE
Precip.: n/a
Humidity: 19%
Cloud cover: 14%

Sat Dec 20

71°F

Sky Is Clear
Min: 50°F
Max: 78°F

Moderate breeze: 15 mps SSW
Precip.: n/a
Humidity: 60%
Cloud cover: 0%

More about 78243

About 78243

The ZIP code 78243 is associated with the city of San Antonio in Bexar County in Texas.

78243 Solar Energy & Power

To learn more about solar energy and solar power in 78243, or for more solar-related resources for TX, check out the U.S. Energy Information Administration.