Knysna Water Temperature

(Today) 2024

18.9°C / 66.1°F

The water will feel medium. The water will feel a bit chilly in just bathers / swimming costume. If you plan on wearing a wetsuit 4/3mm should be thick enough.

Current weather

23°C / 74°F
(broken clouds)
Partly cloudy
Wind
6 mph
Humidity
75%

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.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

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
  • Low 12:53am
    (0.71m)
  • High 07:31am
    (1.54m)
  • Low 01:44pm
    (0.88m)
  • High 07:48pm
    (1.31m)
  • Low 01:54am
    (0.84m)
  • High 08:39am
    (1.44m)
  • Low 03:15pm
    (0.93m)
  • High 09:09pm
    (1.19m)
  • Low 03:16am
    (0.91m)
  • High 10:01am
    (1.41m)
  • Low 04:47pm
    (0.91m)
  • High 10:45pm
    (1.19m)
  • Low 04:41am
    (0.92m)
  • High 11:17am
    (1.46m)
  • Low 05:53pm
    (0.84m)
  • High 12:00am
    (1.26m)
  • Low 05:46am
    (0.88m)
  • High 12:14pm
    (1.53m)
  • Low 06:39pm
    (0.76m)
  • High 12:50am
    (1.36m)
  • Low 06:34am
    (0.82m)
  • High 12:57pm
    (1.61m)
  • Low 07:15pm
    (0.67m)
  • High 01:30am
    (1.47m)
  • Low 07:14am
    (0.75m)
  • High 01:33pm
    (1.7m)
  • Low 07:47pm
    (0.58m)
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.