Riebeek-Kasteel Weather in September
September in Riebeek-Kasteel averages 21°C (70°F) during the day and 8°C (46°F) at night. Quite a bit of rainfall is typical this month, with around 60 mm (2.4 in) on average. An umbrella is a good idea.
Rainfall in Riebeek-Kasteel in September
Analyzing past climate data, one can expect approximately 8 days of rain, averaging 60 mm (2.4 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Riebeek-Kasteel in September
September is a good time to be in Riebeek-Kasteel. Days are perfect, reaching 21°C (70°F), with nights around 8°C (46°F). Conditions are often most pleasant around the middle of the day. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Africa, check out our Riebeek-Kasteel's climate page.
Riebeek-Kasteel Temperature in September
Min Temperature
8°C (46°F)
Max Temperature
21°C (70°F)
Chance of Rain
27%
Precipitation
60 mm (2.4 in)
Rainy days
8 days
Humidity
79% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Riebeek-Kasteel typically stay consistent throughout September, with daily highs averaging around 21°C (70°F). Nights are cool, with lows around 9°C (48°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Riebeek-Kasteel in September
Browse day-by-day weather records for Riebeek-Kasteel spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Riebeek-Kasteel historical weather extremes in September
Based on 49 years of weather observations in Riebeek-Kasteel between 1976 and 2025, these are the recorded extremes.
- The warmest day in September was on September 26, 2019, with a maximum of 36°C (97°F).
- On September 20, 2013, Riebeek-Kasteel saw its coldest September day with temperatures maxing out at 12°C (54°F).
- The lowest overnight temperature recorded in September was 0°C (32°F) (September 20, 2018).
- Peak precipitation in September occurred on September 5, 1992, when 29 mm (1.1 in) of precipitation was measured.
Best Places in South Africa in September
Find out more about the weather in South Africa and which places have the best travel conditions in this month. See all of South Africa in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Riebeek-Kasteel in September
For Riebeek-Kasteel in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket.What To Do in Riebeek-Kasteel in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Africa, check out our Riebeek-Kasteel's climate page.
See the full Riebeek-Kasteel climate overview or explore weather in South Africa.
