Climate almanac
Koster
North West, South Africa · -25.86°, 26.90°
What is the climate like in Koster?
The best time to visit Koster is typically March – November, with trip comfort peaking in September (8.6/10). Koster is warmest in October, when daily highs average 84°F (29°C), and coolest in July, when lows fall to about 41°F (5°C). The wettest month is typically December and the driest is August; the year sees roughly 25 in (632 mm) of precipitation.
- Best time to visitMarch – November — comfort peaks in September (8.6/10)
- Warmest monthOctober — average high 84°F (29°C)
- Coolest monthJuly — average low 41°F (5°C)
- Wettest monthDecember (4.9 in (125 mm))
- Driest monthAugust (0.1 in (2 mm))
- Annual precipitation25 in (632 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromLichtenburg, 79 km away (1998-2025)