Knysna Weather in December
With daytime temperatures of 23°C (73°F) and nighttime lows of 17°C (63°F), December in Knysna brings high temperatures during the day. The perfect weather makes it an appealing time to visit.
Rainfall in Knysna in December
Typically around 11 days of rainfall are expected, averaging 51 mm (2 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Knysna in December
December tends to be one of the perfect months in Knysna, with 23°C (73°F) in the afternoon and 17°C (63°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 17°C (63°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Knysna in December
The days are predominantly sunny, with an estimated total of around 345 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If you favor pleasant temperatures and minimal rainfall, December is one of the best months to visit Knysna.
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 Knysna's climate page.
Knysna Temperature in December
Min Temperature
17°C (63°F)
Max Temperature
23°C (73°F)
Chance of Rain
35%
Precipitation
51 mm (2 in)
Rainy days
11 days
Sunshine
345 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Knysna typically stay consistent throughout December, with daily highs averaging around 23°C (73°F). Nights are pleasant, with lows around 15°C (59°F).
Average temperatures in December
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 December
Historical weather for Knysna in December
Browse day-by-day weather records for Knysna spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Knysna historical weather extremes in December
Our historical data for Knysna spans 1976 to 2025, revealing these weather extremes.
- The warmest day in December was on December 13, 1999, with a maximum of 36°C (97°F).
- Knysna experienced its chilliest December day on December 2, 1993, reaching only 14°C (57°F).
- Nighttime temperatures dropped to 9°C (48°F) on December 3, 2020, marking the coldest December night on record.
Best Places in South Africa in December
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 December →
perfect weather
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What to Wear in Knysna in December
Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Knysna in December
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 Knysna's climate page.
See the full Knysna climate overview or explore weather in South Africa.
