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Weather & Climate in Delmas, South Africa
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Delmas enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 69°F in January while summers reach 50°F in July / relatively mild seasonal variation. The area gets 345 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 20.4 inches (drier than the 38-inch national average). The city sits at an elevation of 5,112 feet.
Temperature
69°F Jan (21°C)
50°F Jul (10°C)
| Annual Average | 62.1°F |
| 15% above US avg | |
| January Average | 69°F (21°C) |
| July Average | 50°F (10°C) |
| Sunny Days | 345 days/yr |
Geography
| Elevation | 5,112 ft (1,558 m) |
| Area | 3.4 sq mi (8.7 km²) |
| Population Density | 27,313/sq mi |
| Coordinates | -26.1466°N, 28.6832°W |
| Timezone | Africa/Johannesburg |
Precipitation & Snow
Air Quality
Earthquake History
564 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| Jun 14, 2010 | 8 km NNW of Fochville, South Africa | M5.0 | 124 km | 2 km |
| Dec 5, 1998 | 9 km NNE of Fochville, South Africa | M4.9 | 119 km | 10 km |
| Mar 7, 1992 | 14 km W of Fochville, South Africa | M4.9 | 139 km | 10 km |
| Aug 6, 2000 | 8 km SSW of Westonaria, South Africa | M4.9 | 111 km | 5 km |
| Jun 11, 2023 | Gauteng, South Africa | M4.9 | 56 km | 5 km |
| Mar 1, 2019 | 6 km WSW of Soweto, South Africa | M4.9 | 90 km | 5 km |
| Mar 7, 2019 | 6 km E of Fochville, South Africa | M4.8 | 119 km | 5 km |
| Dec 2, 2013 | 33 km SE of Modimolle, South Africa | M4.8 | 136 km | 5 km |
| Aug 16, 2012 | 6 km ESE of Westonaria, South Africa | M4.7 | 100 km | 5 km |
| Oct 9, 2009 | 7 km NW of Fochville, South Africa | M4.7 | 128 km | 2 km |
| Apr 6, 1993 | 3 km NW of Carletonville, South Africa | M4.7 | 132 km | 5 km |
| Sep 25, 1997 | 1 km SE of Carletonville, South Africa | M4.7 | 130 km | 5 km |
| Oct 28, 1995 | 10 km W of Westonaria, South Africa | M4.7 | 115 km | 5 km |
| Jul 13, 2000 | 9 km SW of Westonaria, South Africa | M4.7 | 113 km | 10 km |
| Mar 13, 2022 | 14 km W of eMbalenhle, South Africa | M4.7 | 47 km | 5 km |
| Jul 12, 2002 | 14 km NNW of eMbalenhle, South Africa | M4.7 | 44 km | 5 km |
| Mar 21, 2002 | 14 km W of Fochville, South Africa | M4.6 | 139 km | 5 km |
| Mar 28, 2018 | 6 km E of Fochville, South Africa | M4.6 | 118 km | 5 km |
| Aug 31, 2014 | 14 km WSW of Carletonville, South Africa | M4.6 | 144 km | 5 km |
| Jul 19, 2003 | 9 km SW of Carletonville, South Africa | M4.6 | 138 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 69°F (21°C) | 4.8 in | Warmest, Wettest |
| February | 67°F (20°C) | 3.7 in | |
| March | 66°F (19°C) | 3.4 in | |
| April | 61°F (16°C) | 1.7 in | |
| May | 55°F (13°C) | 0.5 in | |
| June | 50°F (10°C) | 0.2 in | |
| July | 50°F (10°C) | 0.2 in | Coldest, Driest |
| August | 55°F (13°C) | 0.3 in | |
| September | 62°F (16°C) | 0.9 in | |
| October | 65°F (18°C) | 2.8 in | |
| November | 66°F (19°C) | 4.5 in | |
| December | 67°F (20°C) | 4.4 in |
Delmas has a seasonal temperature swing of 19°F / from 50°F in July to 69°F in January. Total annual precipitation is 27.4 inches, with January being the wettest month (4.8") and July the driest (0.2").