Solar and backup power in Australia
Sunshine across Australia ranges from 4.04 peak sun hours a day on average in Hobart to 5.73 in Townsville. The same home needs noticeably more panels in the cloudiest cities, especially in their dullest month.
Household supply: 230 V.
| City | State or territory | Average sun hours | Least sunny month |
|---|---|---|---|
| Townsville | Queensland | 5.73 | June: 3.92 |
| Darwin | Northern Territory | 5.70 | June: 5.09 |
| Perth | Western Australia | 5.54 | June: 2.75 |
| Cairns | Queensland | 5.43 | June: 3.87 |
| Sunshine Coast | Queensland | 5.30 | June: 3.10 |
| Brisbane | Queensland | 5.15 | June: 2.98 |
| Adelaide | South Australia | 5.14 | June: 2.39 |
| Gold Coast | Queensland | 4.97 | June: 2.88 |
| Canberra | Australian Capital Territory | 4.79 | June: 2.33 |
| Newcastle | New South Wales | 4.76 | June: 2.50 |
| Sydney | New South Wales | 4.65 | June: 2.36 |
| Central Coast | New South Wales | 4.65 | June: 2.36 |
| Wollongong | New South Wales | 4.58 | June: 2.35 |
| Melbourne | Victoria | 4.51 | June: 1.86 |
| Geelong | Victoria | 4.37 | June: 1.75 |
| Hobart | Tasmania | 4.04 | June: 1.46 |
Source: NASA POWER climatology, ALLSKY_SFC_SW_DWN (25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025)), retrieved 2026-11-09.