Clanwilliam Temperature by Month
The average annual maximum temperature in Clanwilliam, Western Cape, South Africa is 25°C (77°F), with daytime highs ranging from 19°C (66°F) in July to 32°C (90°F) in February. This page covers monthly averages, day-night differences, and how Clanwilliam compares to cities worldwide.
Clanwilliam Monthly Temperatures
Depending on the time of the year, temperatures range from very warm to pleasant in Clanwilliam. Nighttime lows follow the same pattern, ranging from 17°C (63°F) to 6°C (43°F).
The chart below illustrates the average maximum day and minimum night temperatures in Clanwilliam by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Clanwilliam 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.
very warm
warm
pleasant
moderate
cold
very cold
Clanwilliam vs World: Temperature Compared
Clanwilliam'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:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Clanwilliam's weather — including monthly rainfall, sunshine hours, and humidity — visit our Clanwilliam climate page.
