Solar Energy & Solar Power Resources

Solar Energy in Petaluma, CA

Solar Energy in Petaluma

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

Solar Panels in Petaluma

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

Sunrise & Sunset in Petaluma

The total length of the day in Petaluma, CA today (September 11, 2026) will be 12 hours and 39 minutes. [More]

Solar Power in Petaluma, CA

Solar Energy Data in Petaluma, CA

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

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

Solar Energy Analysis for Petaluma, CA

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

Solar Radiation Data in Petaluma, CA

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

Sorry, data is not currently available.

Solar Radiation Analysis for Petaluma, CA

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

Historical solar radiation data for Petaluma is not currently available.

Please check back later.

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

Solar Power Levels in Petaluma

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

Solar Power: Petaluma vs. the U.S.

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

Sunrise / Sunset in Petaluma

Sunrise/Sunset for September 11, 2026 ^[2]
- Sunrise: 6:47 am
- Sunset: 7:26 pm
- Length of Day: 12:39

Best Months for Solar in Petaluma

Monthly data not currently available.

Solar Panel Installs in Petaluma

We do not currently have data on solar panel installations in the city of Petaluma, CA at this current time.

Solar Power Output in Petaluma

The Power of Solar in Petaluma, CA

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

AC output data is not currently available.

Solar Output Analysis for Petaluma, CA

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

Historical solar radiation data for Petaluma is not currently available.

Please check back later.

Cost of Utilities in Petaluma

Petaluma Electricity Costs

Sorry, Petaluma residential electricity prices are currently unavailable.

Please check back later.

Solar Power Poll: Petaluma

Vote now: Given all of the data and analysis provided for Petaluma, is solar power a good choice for residents of this city?

Petaluma Natural Gas Costs

Sorry, California residential natural gas prices are currently unavailable.

Please check back later.

Weather Forecast for Petaluma, CA ^[5]

Fri Sep 11

80°F

Sky Is Clear
Min: 57°F
Max: 82°F

Gentle Breeze: 10 mps WSW
Precip.: n/a
Humidity: 46%
Cloud cover: 0%

Sat Sep 12

80°F

Sky Is Clear
Min: 50°F
Max: 80°F

Moderate breeze: 14 mps WSW
Precip.: n/a
Humidity: 34%
Cloud cover: 4%

Sun Sep 13

81°F

Sky Is Clear
Min: 45°F
Max: 81°F

Gentle Breeze: 11 mps WSW
Precip.: n/a
Humidity: 21%
Cloud cover: 0%

Mon Sep 14

87°F

Sky Is Clear
Min: 52°F
Max: 87°F

Gentle Breeze: 10 mps WSW
Precip.: n/a
Humidity: 15%
Cloud cover: 6%

Tue Sep 15

82°F

Few Clouds
Min: 52°F
Max: 82°F

Light breeze: 6 mps SE
Precip.: n/a
Humidity: 28%
Cloud cover: 24%

Wed Sep 16

78°F

Sky Is Clear
Min: 51°F
Max: 78°F

Light breeze: 7 mps WSW
Precip.: n/a
Humidity: 39%
Cloud cover: 0%

More about Petaluma

About Petaluma

The city of Petaluma, CA in Sonoma County has an approximate population of 57,941. ^[6]

Petaluma, CA Solar Energy

To learn more about solar energy and solar power Petaluma, CA, or for more solar-related resources for Petaluma, visit the U.S. Energy Information Administration.