Knysna Garden Route South Africa Climate

Knysna Climate

The town of Knysna has a temperate climate making it an ideal all-year holiday destination.

Summer temperatures can reach highs of 38° and during the winter months (June-August) temperatures can fall to about 18º Celsius - still ideal conditions for outdoors activities! Sporadic snowfalls on the higher Outeniqua peaks during winter bring the temperature down at times.

Knysna HeadsBerg (mountain) winds during Winter (between May and September) and cold fronts during Spring and Autumn further contribute to a very equitable climate.

The lowest rainfall occurs during winter; the yearly average is 770 mm.  The Indian Ocean at Knysna is much warmer than the sea water in Cape Town; even in winter there are many days where you can go swimming.

The average annual relative humidity is 88%. Knysna is surrounded by indigenous forests that survive on meager rainfalls compared to rainforests worldwide, averaging from 550mm to a high of 950mm per annum. Most of the southern facing slopes will receive on average 550mm, with portions of the foothills receiving up to 1200mm per annum.

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