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Weather & Climate in St George, Australia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
St George enjoys a temperate climate with an average annual temperature of 69°F (20°C). Winters average 82°F in January while summers reach 54°F in July / relatively mild seasonal variation. The area gets 298 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 20.8 inches (drier than the 38-inch national average). The city sits at an elevation of 696 feet.
Temperature
82°F Jan (28°C)
54°F Jul (12°C)
| Annual Average | 68.7°F |
| 27% above US avg | |
| January Average | 82°F (28°C) |
| July Average | 54°F (12°C) |
| Sunny Days | 298 days/yr |
Geography
| Elevation | 696 ft (212 m) |
| Area | 7,697.2 sq mi (19,935.8 km²) |
| Population Density | 0/sq mi |
| Coordinates | -27.9476°N, 148.6099°W |
| Timezone | Australia/Brisbane |
Precipitation & Snow
Air Quality
Earthquake History
6 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Sep 28, 1991 | 97 km WNW of St George, Australia | M4.0 | 98 km | 10 km |
| Sep 24, 1991 | 21 km W of St George, Australia | M3.9 | 22 km | 10 km |
| Apr 14, 2005 | 93 km SE of St George, Australia | M3.2 | 93 km | 0 km |
| Aug 22, 2002 | 67 km SE of St George, Australia | M3.0 | 68 km | 10 km |
| Dec 6, 2001 | 86 km SSE of St George, Australia | M2.9 | 87 km | 10 km |
| Jul 30, 2005 | 66 km S of St George, Australia | M2.8 | 66 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 82°F (28°C) | 3.3 in | Warmest, Wettest |
| February | 81°F (27°C) | 2.2 in | |
| March | 77°F (25°C) | 1.9 in | |
| April | 69°F (21°C) | 1.5 in | |
| May | 62°F (17°C) | 1.8 in | |
| June | 55°F (13°C) | 0.9 in | Driest |
| July | 54°F (12°C) | 1.3 in | Coldest |
| August | 56°F (14°C) | 1.0 in | |
| September | 63°F (17°C) | 1.1 in | |
| October | 70°F (21°C) | 1.5 in | |
| November | 76°F (24°C) | 2.1 in | |
| December | 80°F (27°C) | 2.2 in |
St George has a seasonal temperature swing of 28°F / from 54°F in July to 82°F in January. Total annual precipitation is 20.8 inches, with January being the wettest month (3.3") and June the driest (0.9").