Hermanus Water Temperature

(Today) 2025

15.6°C / 60.1°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

11°C / 52°F
(overcast clouds)
Partly cloudy
Wind
18 mph
Humidity
72%

The measurements for the water temperature in Hermanus, 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 Hermanus water temperature derived from many years of historical sea surface temperature data.

Hermanus average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Hermanus
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 19.4 19.7 19.5 17.2 15.7 15.4 14.7 14.5 14.5 15.7 16.5 18.4
Max °C 22.7 22.1 22.7 21.1 18.5 17.3 16.2 16 16.9 17.8 19.6 21.1
Min °F 68.2 68.4 68.4 64.5 61.4 60.4 59 58.7 59.1 61.1 62.9 66.2
Max °F 71.5 70.8 71.6 68.4 64.2 62.3 60.5 60.2 61.5 63.2 66 68.9

The warmest water temperature is in March with an average around 70°F / 21.1°C. The coldest month is August with an average water temperature of 59.4°F / 15.2°C.

7 day tide forecast for Hermanus

ThuFriSatSunMonTueWed
  • High 05:28am
    (1.79m)
  • Low 11:44am
    (0.49m)
  • High 06:02pm
    (1.68m)
  • Low 12:09am
    (0.61m)
  • High 06:18am
    (1.58m)
  • Low 12:35pm
    (0.6m)
  • High 06:58pm
    (1.53m)
  • Low 01:16am
    (0.72m)
  • High 07:20am
    (1.4m)
  • Low 01:41pm
    (0.71m)
  • High 08:11pm
    (1.43m)
  • Low 02:52am
    (0.78m)
  • High 08:46am
    (1.25m)
  • Low 03:13pm
    (0.77m)
  • High 09:43pm
    (1.4m)
  • Low 04:36am
    (0.77m)
  • High 10:32am
    (1.24m)
  • Low 04:45pm
    (0.77m)
  • High 11:08pm
    (1.45m)
  • Low 05:50am
    (0.71m)
  • High 11:51am
    (1.3m)
  • Low 05:50pm
    (0.72m)
  • High 12:07am
    (1.53m)
  • Low 06:39am
    (0.64m)
  • High 12:41pm
    (1.4m)
  • Low 06:37pm
    (0.68m)
7 day tide times for Hermanus

*These tide times are estimates based on the nearest accurate location (Cape Town, 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.