Riebeek-Kasteel Temperature by Month
Riebeek-Kasteel, Western Cape, South Africa has an average annual maximum temperature of 25°C (77°F), ranging from 19°C (66°F) in July to 32°C (90°F) in February. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Riebeek-Kasteel Monthly Temperatures
With significant temperature fluctuations, Riebeek-Kasteel enjoys distinct seasons year-round. Nighttime lows range from 17°C (63°F) in February to 5°C (41°F) in July.
The chart below illustrates the average maximum day and minimum night temperatures in Riebeek-Kasteel by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in May
Historical Riebeek-Kasteel Temperatures: 1976-2026
Browse day-by-day temperature records for Riebeek-Kasteel spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Riebeek-Kasteel vs South Africa
The map below shows the annual temperature across South Africa. You can also select individual months if you want to compare a specific time of year.
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Riebeek-Kasteel vs World: Temperature Compared
Riebeek-Kasteel's average annual maximum temperature is 25°C (77°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Riebeek-Kasteel?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Riebeek-Kasteel, July is the coolest month, with average highs of 19°C (66°F) and humidity around 81% — considered very high. In February, the warmest month, temperatures average 32°C (90°F) with 72% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Riebeek-Kasteel's weather — including monthly rainfall, sunshine hours, and humidity — visit our Riebeek-Kasteel climate page.
