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Weather & Climate in Johannesburg, South Africa
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Johannesburg enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 72°F in January while summers reach 51°F in July / relatively mild seasonal variation. The area gets 341 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 17.6 inches (drier than the 38-inch national average). The city sits at an elevation of 5,797 feet.
Temperature
72°F Jan (22°C)
51°F Jul (11°C)
| Annual Average | 63.9°F |
| 18% above US avg | |
| January Average | 72°F (22°C) |
| July Average | 51°F (11°C) |
| Sunny Days | 341 days/yr |
Geography
| Elevation | 5,797 ft (1,767 m) |
| Area | 634.8 sq mi (1,644.0 km²) |
| Population Density | 14,838/sq mi |
| Coordinates | -26.2023°N, 28.0436°W |
| Timezone | Africa/Johannesburg |
Precipitation & Snow
Air Quality
Earthquake History
725 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Apr 3, 2017 | 7 km SSE of Stilfontein, South Africa | M5.2 | 146 km | 5 km |
| Jun 14, 2010 | 8 km NNW of Fochville, South Africa | M5.0 | 62 km | 2 km |
| Mar 9, 2005 | 7 km SSE of Stilfontein, South Africa | M5.0 | 148 km | 5 km |
| Mar 1, 2019 | 6 km WSW of Soweto, South Africa | M4.9 | 26 km | 5 km |
| Mar 7, 1992 | 14 km W of Fochville, South Africa | M4.9 | 77 km | 10 km |
| Aug 6, 2000 | 8 km SSW of Westonaria, South Africa | M4.9 | 49 km | 5 km |
| Dec 5, 1998 | 9 km NNE of Fochville, South Africa | M4.9 | 57 km | 10 km |
| Jun 11, 2023 | Gauteng, South Africa | M4.9 | 18 km | 5 km |
| Nov 18, 1998 | 4 km SSW of Stilfontein, South Africa | M4.8 | 149 km | 5 km |
| May 6, 2020 | 6 km SSE of Stilfontein, South Africa | M4.8 | 147 km | 5 km |
| Jun 10, 1991 | 4 km W of Stilfontein, South Africa | M4.8 | 149 km | 5 km |
| Mar 7, 2019 | 6 km E of Fochville, South Africa | M4.8 | 58 km | 5 km |
| Jul 17, 2022 | 14 km E of Orkney, South Africa | M4.8 | 150 km | 5 km |
| Oct 9, 2009 | 7 km NW of Fochville, South Africa | M4.7 | 66 km | 2 km |
| Sep 25, 1997 | 1 km SE of Carletonville, South Africa | M4.7 | 66 km | 5 km |
| Mar 13, 2022 | 14 km W of eMbalenhle, South Africa | M4.7 | 94 km | 5 km |
| Aug 30, 2014 | 12 km SE of Stilfontein, South Africa | M4.7 | 141 km | 5 km |
| Jul 18, 1990 | 5 km NE of Klerksdorp, South Africa | M4.7 | 150 km | 5 km |
| Jan 26, 2000 | 18 km W of Vredefort, South Africa | M4.7 | 127 km | 5 km |
| Aug 16, 2012 | 6 km ESE of Westonaria, South Africa | M4.7 | 38 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 72°F (22°C) | 5.2 in | Warmest, Wettest |
| February | 68°F (20°C) | 3.8 in | |
| March | 65°F (19°C) | 3.7 in | |
| April | 60°F (16°C) | 1.9 in | |
| May | 54°F (12°C) | 0.6 in | |
| June | 48°F (9°C) | 0.3 in | Coldest |
| July | 51°F (11°C) | 0.2 in | Driest |
| August | 53°F (12°C) | 0.3 in | |
| September | 60°F (16°C) | 1.1 in | |
| October | 64°F (18°C) | 2.8 in | |
| November | 66°F (19°C) | 4.3 in | |
| December | 67°F (20°C) | 4.5 in |
Johannesburg has a seasonal temperature swing of 23°F / from 48°F in June to 72°F in January. Total annual precipitation is 28.4 inches, with January being the wettest month (5.2") and July the driest (0.2").