Knysna weather in December 2025

Expect daytime maximum temperatures of 72°F in Knysna, South Africa in December based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 2.6 inches of rainfall in the month.

  • 72°F maximum daytime temperature in December in Knysna72
    72°F max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in December in Knysna11
    11 days with some rainfall
  • 59°F minimum night-time temperature in December in Knysna59
    59°F min night temperature
  • 14 hours of daylight per day in December in Knysna14
    14 hours of daylight per day
  • No heat & humidity in December in Knysna0
    No heat & humidity
  • 2.6 inches monthly rainfall in December in Knysna2.6
    2.6 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Knysna11
    11+ (Extreme) UV index
  • 68°F sea temperature in December in Knysna68
    68°F sea temperature

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The December weather guide for South Africa (Knysna) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about South Africa

How hot is it in Knysna in December?

Daytime temperatures usually reach 72°F in Knysna in December, falling to 59°F at night.

How sunny is it in Knysna in December?

There are normally 9 hours of bright sunshine each day in Knysna in December - that's 64% of daylight hours.

How warm is the sea around Knysna in December?

The average sea temperature around Knysna in December is 68°F.

Does it rain in Knysna in December?

There are usually 11 days with some rain in Knysna in December and the average monthly rainfall is 2.6 inches.

Knysna December sunrise & sunset times

Browse the sunrise and sunset times for Knysna in December 2025. Select a month to view Knysna sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 05:09 19:25
Tuesday, 16th December 2025 05:11 19:36
Wednesday, 31st December 2025 05:19 19:42

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