Solar Energy & Solar Power Resources

Solar Power in 78261 (San Antonio, TX)

Solar Energy in 78261

Sorry, historical solar radition values for 78261 are currently unavailable, please check back later.

Solar Panels in 78261

Solar panels in 78261 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 78261

The total length of the day in 78261 (San Antonio, TX) today (October 18, 2025) will be 11 hours and 25 minutes. [More]

Solar Energy in 78261 (San Antonio, TX)

Solar Energy Data for 78261

See the chart below to see how different types of solar panel installations compare in 78261.

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

Solar Energy Analysis for 78261

Sorry, it is not possible to complete our solar energy analysis for 78261 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 78261

Solar Radiation Data in 78261

See the chart below for monthly solar radiation levels in 78261.

Sorry, data is not currently available.

Solar Radiation Analysis for 78261

Sorry, it is not possible to complete our solar radiation analysis for 78261 at this time.

Historical solar radiation data for 78261 is not currently available.

Please check back later.

Solar Power Comparison: 78261 vs. the U.S.

Solar Power Levels in 78261

Sorry, solar radiation data for 78261 is not currently available.

Solar Power: 78261 vs. the U.S.

Below is a month-by-month comparison of how average 78261 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 78261

Sunrise / Sunset in 78261

Sunrise/Sunset for October 18, 2025 ^[2]
- Sunrise: 7:36 am
- Sunset: 7:01 pm
- Length of Day: 11:25

Best Months for Solar in 78261

Monthly data not currently available.

Solar Panel Installs in 78261

We do not have data on solar panel installations in ZIP Code 78261 at the current time.

Solar Power Output in 78261

The Power of Solar in 78261

Monthly AC solar system output averages for 78261. Month-by-month solar power, as ranked by AC output, in 78261. ^[2]

AC output data is not currently available.

Solar Output Analysis for 78261

Sorry, it is not possible to complete our solar radiation analysis for 78261 at this time.

Historical solar radiation data for 78261 is not currently available.

Please check back later.

Weather Forecast for 78261 ^[5]

Sat Oct 18

82°F

Scattered Clouds
Min: 73°F
Max: 94°F

Gentle Breeze: 12 mps SSW
Precip.: n/a
Humidity: 57%
Cloud cover: 47%

Sun Oct 19

82°F

Sky Is Clear
Min: 66°F
Max: 87°F

Fresh Breeze: 20 mps NNE
Precip.: n/a
Humidity: 27%
Cloud cover: 0%

Mon Oct 20

83°F

Overcast Clouds
Min: 67°F
Max: 93°F

Moderate breeze: 15 mps SW
Precip.: n/a
Humidity: 54%
Cloud cover: 88%

Tue Oct 21

85°F

Few Clouds
Min: 68°F
Max: 89°F

Moderate breeze: 13 mps NNE
Precip.: n/a
Humidity: 34%
Cloud cover: 11%

Wed Oct 22

82°F

Few Clouds
Min: 62°F
Max: 87°F

Gentle Breeze: 11 mps NE
Precip.: n/a
Humidity: 35%
Cloud cover: 11%

Thu Oct 23

84°F

Light Rain
Min: 67°F
Max: 89°F

Moderate breeze: 16 mps S
Precip.: Chance of Rain
Humidity: 50%
Cloud cover: 85%

More about 78261

About 78261

The ZIP code 78261 is associated with the city of San Antonio in Bexar County in Texas.

78261 Solar Energy & Power

To learn more about solar energy and solar power in 78261, or for more solar-related resources for TX, check out the U.S. Energy Information Administration.