Knysna Temperature by Month
Knysna, Western Cape, South Africa has a consistently pleasant climate year-round, with daytime highs averaging 21°C (70°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Knysna Monthly Temperatures
With little seasonal fluctuation, Knysna offers a predictable and steady climate. Maximum daytime temperatures reach a comfortable 24°C (75°F) in February and a pleasant 18°C (64°F) in July. At night, lows range from 18°C (64°F) to 11°C (52°F) throughout the year.
The chart below illustrates the average maximum day and minimum night temperatures in Knysna by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. February, the city's warmest month, sees 300 hours of sunshine.
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 July
Historical Knysna Temperatures: 1976-2026
Browse day-by-day temperature records for Knysna spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Knysna 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
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Knysna vs World: Temperature Compared
Knysna's average annual maximum temperature is 21°C (70°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
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.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Knysna this rarely lasts long on the ground.
For more on Knysna's weather — including monthly rainfall, sunshine hours, and humidity — visit our Knysna climate page.
