Solar Data for Perth, Australia

Latitude

-31.9505°

Longitude

115.8605°

Solar Overview

Perth enjoys a warm temperate climate with an average of 3226 sun hours annually, making it suitable for solar energy generation. The city's solar potential rating is classified as good, particularly benefiting from peak sun months in January, December, and November.


Geographic Impact

Located at a latitude of -31.9505°, Perth experiences favorable conditions for solar energy throughout the year, with long summer days contributing significantly to its solar output.


Rating Methodology

The solar potential rating of 'Good' indicates a strong opportunity for solar energy generation, particularly in peak sun months when sunshine is abundant.

Understanding the Data

The solar energy chart illustrates the distribution of sunlight throughout the year in Perth, showing the highest levels of sunlight during the summer months, which enhances the feasibility of solar installations during this period.

Cost & Savings Outlook

Investing in solar can help offset electricity costs over time, taking advantage of Perth's ample sunlight.

How It Compares

Perth's solar potential rating is on par with both Sydney and Adelaide, indicating similar opportunities for solar energy generation in these cities.

Installation Considerations

With Perth's latitude, optimal solar panel tilt angles typically range from 25° to 35° to maximize exposure to sunlight. The warm temperate climate also means that panels will maintain efficient energy production throughout most of the year, although care should be taken to account for seasonal temperature variations and potential efficiency impacts during extreme heat.

Local Incentives

Check local and national incentive programs, which vary by country and region.

Frequently Asked Questions

How many average sun hours does Perth receive annually?

Perth receives an average of 3226 sun hours annually.

What is the average temperature in Perth?

The average temperature in Perth is approximately 18.97°C.

During which months does Perth experience peak sun?

Perth experiences peak sun months in January, December, and November.

What is the climate zone of Perth?

Perth is classified as a warm temperate climate zone.

How does Perth's solar potential compare to Sydney and Adelaide?

Perth has a solar potential rating of 'Good', which is the same as both Sydney and Adelaide.

What tilt angle is recommended for solar panels in Perth?

A tilt angle between 25° and 35° is generally recommended for solar panels in Perth to optimize sunlight exposure.

Solar Resource & Estimated Production

Irradiance data for Perth hasn't been processed yet — check back soon.

Recommended Panel Orientation

Tilt angle: 32° from horizontal
Azimuth: 0° (true North)

Standard year-round heuristic based on latitude — a professional installer can optimize further for your roof.

Monthly Daylight Hours

Jan

13.9h

Feb

13.1h

Mar

12.2h

Apr

11.2h

May

10.4h

Jun

9.9h

Jul

10.1h

Aug

10.8h

Sep

11.8h

Oct

12.8h

Nov

13.7h

Dec

14.1h

Location Map

How Perth Compares

CitySun Hours/YearIrradiance (kWh/m²/day)Rating
Perth (this city)3,226N/A
Sydney2,577N/AGood
Adelaide2,896N/AGood
Canberra2,851N/AGood
Brisbane2,955N/AGood
Melbourne2,374N/AGood

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