Hermanus · Walker Bay

Walker Bay today

Tides, sea temperature and weather for the bay our abalone grow in, measured at the farm and updated through the day.

As at 22:28 SAST

Sea temperature
14.3 °C
farm intake
Air temperature
14 °C
Rain
Wind
17 km/h
SW · 229°
Next tide
High 04:19
1.63 m
Sun
06:05 · 18:54
rise · set
Moon
5%
Waxing crescent

At the farm

Water quality, measured

Readings from the sensors in our seawater systems — the same water our abalone grow in, sampled several times a day.

10.7mg/lDissolved oxygen
14.3°CWater temperature
8.35pH
2NTUTurbidity

Last measured: 12 Oct 2026 21:14:54

Weather

Now and the next three days

Conditions in Hermanus, with the outlook for today and the two days after.

Right now

14°C

Rain

Wind
17 km/h SW
Cloud
100%
Humidity
92%
Pressure
1020 hPa

Today

Cloudy

15° / 14°

wind up to 17 km/h

1.1 mm rain

Tuesday

Fair

17° / 13°

wind up to 15 km/h

0 mm rain

Wednesday

Partly cloudy

19° / 9°

wind up to 43 km/h

0 mm rain

Tides

Three days of tides

Predicted highs and lows for the next three days, with the curve between them.

22:28 · 0.25 m · rising

Predicted tide height over the next 72 hours0.51.01.5Mon, 12 OctTue, 13 OctWed, 14 Oct22:2803:49 · 1.69 m09:45 · 0.32 m15:59 · 1.76 m22:10 · 0.25 m04:19 · 1.63 m10:12 · 0.39 m16:28 · 1.67 m22:36 · 0.32 m04:47 · 1.56 m10:40 · 0.49 m16:56 · 1.55 m23:03 · 0.42 m
DayTideTimeHeight
Mon, 12 OctHigh03:491.69 m
Low09:450.32 m
High15:591.76 m
Low22:100.25 m
Tue, 13 OctHigh04:191.63 m
Low10:120.39 m
High16:281.67 m
Low22:360.32 m
Wed, 14 OctHigh04:471.56 m
Low10:400.49 m
High16:561.55 m
Low23:030.42 m

Predicted for Simon's Town station (nearest open-data harmonic station), heights in metres above chart datum (LAT). Astronomical tide only; wind and pressure can add or subtract 20–30 cm.

Sea temperature

The water, measured and modelled

Measured at the farm, modelled for the bay and seen from space: up to ninety days back, with the model's forecast ahead.

Sea temperature over the last 49 days and the next 6 hoursWed 26Thu 27Fri 28Sat 29Sun 30Mon 31Tue 1SeptemberWed 2Thu 3Fri 4Sat 5Sun 6Mon 7Tue 8Wed 9Thu 10Fri 11Sat 12Sun 13Mon 14Tue 15Wed 16Thu 17Fri 18Sat 19Sun 20Mon 21Tue 22Wed 23Thu 24Fri 25Sat 26Sun 27Mon 28Tue 29Wed 30Thu 1OctoberFri 2Sat 3Sun 4Mon 5Tue 6Wed 7Thu 8Fri 9Sat 10Sun 11Mon 12Tue 1313.9°14.3°

Waiting for the next OCIMS model run; the last was on 21 September.

  • Farm intake (five readings a day)
  • Bay model, surface (OCIMS)
  • Bay model, next 48 h· temporarily unavailable
  • Satellite, daily (NOAA)

These measure different things. The farm reading is the seawater we pump through the farm; the model is a coastal ocean simulation for a point in the bay; the satellite is a 5 km pixel of the surface skin, a day or two behind. Differences of a degree or two between them are normal.

Farm readings here go back to 23 September 2026 and are added five times a day; the satellite series fills in as NOAA publishes.

Sun and moon

Light on the bay

Rise and set times for the next four days, and where the moon is in its cycle.

DaySunMoon
RiseSetRiseSet
Mon, 12 Oct06:0518:5406:4020:59
Tue, 13 Oct06:0318:5507:1422:01
Wed, 14 Oct06:0218:5607:5223:00
Thu, 15 Oct06:0118:5708:3723:56

Moon

5%

illuminated

Waxing crescent

Next full moon
26 October
Next new moon
9 November

From this water to your table

Our canned abalone comes from the water above. Order online for delivery anywhere in South Africa, or collect free from our head office in Hermanus.

Shop the collection
  • Tide predictions computed from TICON-4 harmonic constants for Simon's Town (CC BY 4.0).
  • Weather: data from MET Norway (CC BY 4.0).
  • Sea temperature model and forecast: National OCIMS Fisheries and Aquaculture Decision Support Tool (DFFE/CSIR), used with permission.
  • Satellite sea temperature: NOAA Coral Reef Watch CoralTemp.
  • Farm readings: Abagold seawater intake, Hermanus.