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Weather & Climate in Stilfontein, South Africa
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Stilfontein enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 73°F in January while summers reach 50°F in July / relatively mild seasonal variation. The area gets 294 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 23.4 inches (drier than the 38-inch national average). The city sits at an elevation of 4,452 feet.
Temperature
73°F Jan (23°C)
50°F Jul (10°C)
| Annual Average | 63.5°F |
| 18% above US avg | |
| January Average | 73°F (23°C) |
| July Average | 50°F (10°C) |
| Sunny Days | 294 days/yr |
Geography
| Elevation | 4,452 ft (1,357 m) |
| Area | 1,589.4 sq mi (4,116.6 km²) |
| Population Density | 59/sq mi |
| Coordinates | -26.8449°N, 26.7683°W |
| Timezone | Africa/Johannesburg |
Precipitation & Snow
Air Quality
Earthquake History
1,093 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.7.
| Apr 22, 1999 | 10 km WNW of Welkom, South Africa | M5.7 | 124 km | 5 km |
| Oct 30, 1994 | 6 km S of Welkom, South Africa | M5.6 | 132 km | 5 km |
| Aug 5, 2014 | 3 km ESE of Orkney, South Africa | M5.4 | 17 km | 5 km |
| Jun 6, 1992 | 5 km SSE of Welkom, South Africa | M5.3 | 131 km | 10 km |
| Apr 3, 2017 | 7 km SSE of Stilfontein, South Africa | M5.2 | 8 km | 5 km |
| Feb 10, 1997 | 5 km SSE of Orkney, South Africa | M5.2 | 21 km | 5 km |
| Nov 3, 1991 | 5 km SE of Klerksdorp, South Africa | M5.1 | 9 km | 5 km |
| Jul 21, 1997 | 4 km W of Klerksdorp, South Africa | M5.0 | 15 km | 5 km |
| Sep 26, 1990 | 4 km S of Welkom, South Africa | M5.0 | 130 km | 5 km |
| Mar 9, 2005 | 7 km SSE of Stilfontein, South Africa | M5.0 | 8 km | 5 km |
| Mar 16, 2009 | 8 km ENE of Orkney, South Africa | M5.0 | 12 km | 2 km |
| Dec 1, 1991 | 2 km S of Klerksdorp, South Africa | M5.0 | 11 km | 10 km |
| May 27, 2002 | 4 km ENE of Orkney, South Africa | M5.0 | 14 km | 5 km |
| Jun 14, 2010 | 8 km NNW of Fochville, South Africa | M5.0 | 85 km | 2 km |
| Jul 29, 2000 | 13 km SSW of Allanridge, South Africa | M4.9 | 115 km | 10 km |
| Dec 11, 1997 | 7 km SSW of Klerksdorp, South Africa | M4.9 | 15 km | 5 km |
| Nov 25, 1995 | South Africa | M4.9 | 10 km | 13 km |
| Feb 17, 2005 | 13 km WSW of Klerksdorp, South Africa | M4.9 | 23 km | 5 km |
| Mar 22, 2019 | 8 km WNW of Virginia, South Africa | M4.9 | 136 km | 5 km |
| Jul 13, 1998 | 14 km ENE of Welkom, South Africa | M4.9 | 122 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 73°F (23°C) | 4.3 in | Warmest, Wettest |
| February | 72°F (22°C) | 3.4 in | |
| March | 69°F (21°C) | 3.1 in | |
| April | 63°F (17°C) | 1.8 in | |
| May | 56°F (13°C) | 0.6 in | |
| June | 50°F (10°C) | 0.2 in | Coldest |
| July | 50°F (10°C) | 0.2 in | Driest |
| August | 55°F (13°C) | 0.4 in | |
| September | 63°F (17°C) | 0.9 in | |
| October | 68°F (20°C) | 2.6 in | |
| November | 70°F (21°C) | 2.8 in | |
| December | 72°F (22°C) | 3.4 in |
Stilfontein has a seasonal temperature swing of 23°F / from 50°F in June to 73°F in January. Total annual precipitation is 23.4 inches, with January being the wettest month (4.3") and July the driest (0.2").