Knysna Water Temperature

(Today) 2024

19.3°C / 66.8°F

The water will feel tepid. Swimming will be tolerable without a wetsuit, although it will take a little getting used to. If you intend to stay in the water for a while a 3/2mm wetsuit will be ideal.

Current weather

22°C / 71°F
(overcast clouds)
Partly cloudy
Wind
5 mph
Humidity
73%

The measurements for the water temperature in Knysna, Western Cape are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Knysna water temperature derived from many years of historical sea surface temperature data.

Knysna average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Knysna
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 18.7 19.1 18.6 17.5 16.9 16.4 16.5 15.8 16.6 16.9 17.9 18.7
Max °C 22.9 21.5 22.8 20.4 19.4 19.5 18.6 18.8 19.1 19.5 21.2 22.2
Min °F 67.3 67.3 67.2 64.6 63.4 62.7 62.5 61.6 62.8 63.5 65.5 67
Max °F 71.5 69.7 71.4 67.5 65.9 65.8 64.6 64.6 65.3 66.1 68.8 70.5

The warmest water temperature is in January with an average around 69.4°F / 20.8°C. The coldest month is August with an average water temperature of 63.1°F / 17.3°C.


7 day tide forecast for Knysna

ThuFriSatSunMonTueWed
  • High 05:11am
    (1.95m)
  • Low 11:14am
    (0.43m)
  • High 05:30pm
    (1.78m)
  • Low 11:18pm
    (0.55m)
  • High 05:38am
    (1.88m)
  • Low 11:42am
    (0.5m)
  • High 06:00pm
    (1.68m)
  • Low 11:46pm
    (0.63m)
  • High 06:08am
    (1.77m)
  • Low 12:15pm
    (0.6m)
  • High 06:35pm
    (1.57m)
  • Low 12:21am
    (0.74m)
  • High 06:46am
    (1.63m)
  • Low 12:55pm
    (0.71m)
  • High 07:21pm
    (1.44m)
  • Low 01:10am
    (0.85m)
  • High 07:38am
    (1.46m)
  • Low 01:57pm
    (0.83m)
  • High 08:33pm
    (1.33m)
  • Low 02:39am
    (0.97m)
  • High 09:08am
    (1.31m)
  • Low 03:47pm
    (0.91m)
  • High 10:29pm
    (1.31m)
  • Low 05:01am
    (0.93m)
  • High 11:16am
    (1.31m)
  • Low 05:40pm
    (0.84m)
  • High 12:09am
    (1.48m)
7 day tide times for Knysna

*These tide times are estimates based on the nearest accurate location (Mosselbaai, South Africa) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.