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Weather & Climate in Arniston, South Africa
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Arniston enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 70°F in January while summers reach 56°F in July / relatively mild seasonal variation. The area gets 304 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 62 feet.
Temperature
70°F Jan (21°C)
56°F Jul (14°C)
| Annual Average | 62.8°F |
| 16% above US avg | |
| January Average | 70°F (21°C) |
| July Average | 56°F (14°C) |
| Sunny Days | 304 days/yr |
Geography
| Elevation | 62 ft (19 m) |
| Area | 2,024.6 sq mi (5,243.6 km²) |
| Population Density | 1/sq mi |
| Coordinates | -34.6674°N, 20.2309°W |
| Timezone | Africa/Johannesburg |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 70°F (21°C) | 0.8 in | Warmest, Driest |
| February | 70°F (21°C) | 1.0 in | |
| March | 67°F (20°C) | 1.0 in | |
| April | 64°F (18°C) | 2.1 in | |
| May | 60°F (16°C) | 1.9 in | |
| June | 58°F (14°C) | 2.1 in | |
| July | 56°F (14°C) | 2.1 in | Coldest |
| August | 57°F (14°C) | 2.2 in | Wettest |
| September | 58°F (15°C) | 1.3 in | |
| October | 62°F (16°C) | 1.3 in | |
| November | 64°F (18°C) | 0.9 in | |
| December | 68°F (20°C) | 0.9 in |
Arniston has a seasonal temperature swing of 13°F / from 56°F in July to 70°F in January. Total annual precipitation is 17.6 inches, with August being the wettest month (2.2") and January the driest (0.8").