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Weather & Climate in Clanwilliam, South Africa
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Clanwilliam enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 76°F in January while summers reach 54°F in July / relatively mild seasonal variation. The area gets 317 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 10.5 inches (drier than the 38-inch national average). The city sits at an elevation of 315 feet.
Temperature
76°F Jan (24°C)
54°F Jul (12°C)
| Annual Average | 65.5°F |
| 21% above US avg | |
| January Average | 76°F (24°C) |
| July Average | 54°F (12°C) |
| Sunny Days | 317 days/yr |
Geography
| Elevation | 315 ft (96 m) |
| Area | 5.9 sq mi (15.3 km²) |
| Population Density | 1,558/sq mi |
| Coordinates | -32.1817°N, 18.8922°W |
| Timezone | Africa/Johannesburg |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 76°F (24°C) | 0.2 in | Driest |
| February | 76°F (25°C) | 0.2 in | Warmest |
| March | 73°F (23°C) | 0.5 in | |
| April | 68°F (20°C) | 0.9 in | |
| May | 60°F (16°C) | 1.4 in | |
| June | 56°F (13°C) | 1.9 in | Wettest |
| July | 54°F (12°C) | 1.7 in | Coldest |
| August | 56°F (13°C) | 1.5 in | |
| September | 59°F (15°C) | 0.9 in | |
| October | 65°F (18°C) | 0.5 in | |
| November | 70°F (21°C) | 0.4 in | |
| December | 74°F (23°C) | 0.4 in |
Clanwilliam has a seasonal temperature swing of 22°F / from 54°F in July to 76°F in February. Total annual precipitation is 10.5 inches, with June being the wettest month (1.9") and January the driest (0.2").