Solar Energy & Solar Power Resources

Solar Energy in Hilo, HI

Solar Energy in Hilo

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

Solar Panels in Hilo

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

Sunrise & Sunset in Hilo

The total length of the day in Hilo, HI today (July 13, 2026) will be 13 hours and 16 minutes. [More]

Solar Power in Hilo, HI

Solar Energy Data in Hilo, HI

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

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

Solar Energy Analysis for Hilo, HI

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

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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 Hilo

Solar Radiation Data in Hilo, HI

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

Sorry, data is not currently available.

Solar Radiation Analysis for Hilo, HI

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

Historical solar radiation data for Hilo is not currently available.

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

Solar Power Levels in Hilo

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

Solar Power: Hilo vs. the U.S.

Below is a month-by-month comparison of how average Hilo 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 Hawaii is not currently available.

Solar Data & Statistics for Hilo

Sunrise / Sunset in Hilo

Sunrise/Sunset for July 13, 2026 ^[2]
- Sunrise: 5:48 am
- Sunset: 7:04 pm
- Length of Day: 13:16

Best Months for Solar in Hilo

Monthly data not currently available.

Solar Panel Installs in Hilo

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

Solar Power Output in Hilo

The Power of Solar in Hilo, HI

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

AC output data is not currently available.

Solar Output Analysis for Hilo, HI

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

Historical solar radiation data for Hilo is not currently available.

Please check back later.

Cost of Utilities in Hilo

Hilo Electricity Costs

Sorry, Hilo residential electricity prices are currently unavailable.

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Solar Power Poll: Hilo

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

Hilo Natural Gas Costs

Sorry, Hawaii residential natural gas prices are currently unavailable.

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Weather Forecast for Hilo, HI ^[5]

Mon Jul 13

75°F

Moderate Rain
Min: 73°F
Max: 77°F

Light breeze: 7 mps NNE
Precip.: Chance of Rain
Humidity: 88%
Cloud cover: 100%

Tue Jul 14

78°F

Light Rain
Min: 73°F
Max: 78°F

Gentle Breeze: 8 mps ENE
Precip.: Chance of Rain
Humidity: 70%
Cloud cover: 52%

Wed Jul 15

79°F

Light Rain
Min: 73°F
Max: 80°F

Gentle Breeze: 9 mps E
Precip.: Chance of Rain
Humidity: 68%
Cloud cover: 8%

Thu Jul 16

80°F

Light Rain
Min: 74°F
Max: 81°F

Gentle Breeze: 9 mps E
Precip.: Chance of Rain
Humidity: 61%
Cloud cover: 4%

Fri Jul 17

80°F

Moderate Rain
Min: 75°F
Max: 81°F

Gentle Breeze: 8 mps E
Precip.: Chance of Rain
Humidity: 75%
Cloud cover: 36%

Sat Jul 18

79°F

Moderate Rain
Min: 76°F
Max: 80°F

Gentle Breeze: 10 mps ENE
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 68%

More about Hilo

About Hilo

The city of Hilo, HI in Hawaii County has an approximate population of 43,263. ^[6]

Hilo, HI Solar Energy

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