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Solar in Waikiki
How much should solar panels make in Waikiki (6169)? Typical output for a north-facing roof, month by month, from 25 years of NASA sunshine records.
A 6.6 kW system in Waikiki makes about 29 kWh a day on average, or around 10,660 kWh a year.
| Month | Sun hrs/day | kWh/day | kWh/month |
|---|---|---|---|
| January | 7.9 | 39.3 | 1,219 |
| February | 7.4 | 36.8 | 1,041 |
| March | 6.6 | 32.6 | 1,009 |
| April | 5.1 | 25.4 | 763 |
| May | 4.2 | 20.6 | 638 |
| June | 3.5 | 17.2 | 517 |
| July | 3.7 | 18.3 | 566 |
| August | 4.5 | 22.2 | 689 |
| September | 5.6 | 27.7 | 830 |
| October | 6.8 | 33.4 | 1,036 |
| November | 7.6 | 37.5 | 1,125 |
| December | 8.0 | 39.6 | 1,227 |
| Year | 5.9 | 29.2 | 10,660 |
Typical long-term averages for a north-facing roof at a normal pitch, after everyday losses from heat, dust and wiring. East- or west-facing panels make roughly 10 to 15% less. Any single day can be higher or lower depending on the weather.
Will it cover your power use?
Average daily use for Australian homes, compared with what a 6.6 kW system makes in Waikiki.
Across the year, a 6.6 kW system here makes more than a typical four-person home uses. In June it makes about 17 kWh a day, which is less than a four-person home uses.
Solar is made in the middle of the day, while most homes use more power in the morning and evening. Without a battery, a good share of what your panels make is exported to the grid, so solar covers less of your bill than these totals suggest. Running the dishwasher, washing machine and pool pump during the day helps.
Household use figures are Australia-wide averages from the Australian Energy Regulator's 2020 benchmarks. Air conditioning, a pool or an electric car can add a lot more.
Is Waikiki good for solar?
Yes. Like the rest of Perth, Waikiki is one of the sunniest places in Australia to own solar panels. It gets about the same sunshine as the Perth CBD, averaging 5.9 sun hours a day on a north-facing roof.
December is the strongest month, when a 6.6 kW system makes about 40 kWh a day. June is the weakest, at about 17 kWh, so expect your summer output to be roughly 2.3 times your winter output. That swing is normal and doesn't mean anything is wrong.
How many homes in Waikiki have solar?
Solar systems installed in postcode 6169 (shared with Safety Bay, Shoalwater, Warnbro), from the Clean Energy Regulator.
That works out to about 75 systems for every 100 houses and townhouses in 6169, which is above the Perth average. Across Perth it's about 67 for every 100. 478 more were added between Oct 2025 and Sep 2026, so solar is still being installed here every week.
These count every small solar system registered since 2001, including upgrades and replacements, so they run a little higher than the share of homes with solar today. House counts are from the 2021 Census.
Already have solar in Waikiki?
Check how your panels compare with the real sunshine in Waikiki on any day in the last month.
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Sunshine data: NASA POWER long-term averages (2001–2025) for a tilted, north-facing surface, adjusted to Waikiki's location. Output assumes 75% of that sunshine becomes power after typical losses. Solar installations: based on Clean Energy Regulator material licensed under CC BY 4.0. House counts: ABS 2021 Census.