False Bay dive visibility forecast
Cape Town · Western Cape
False Bay is the warmer, shallower side of the peninsula. Its western shore (Simon’s Town, Miller’s Point, Partridge Point) is sheltered from the Atlantic swell but exposed to the southeaster that blows the length of the bay and arrives onshore, which is why it comes good on a northwester and blows out in summer.
False Bay dive visibility, tomorrow (Friday 6 November 2026): the clearest water is forecast at Buffels Bay with a median of 10.0 m and conditions rated diveable. Across the 16 covered False Bay sites the median forecast is 7.0 m, and 13 are rated diveable during daylight hours. Figures are modelled estimates, not measurements.
False Bay dive sites, ranked by tomorrow's visibility
| Site | Tomorrow 6 Nov | Saturday 7 Nov | Sunday 8 Nov | Monday 9 Nov | Tuesday 10 Nov | Wednesday 11 Nov | Conditions |
|---|---|---|---|---|---|---|---|
| Buffels Bay | 10.0 m | 9.4 m | 8.2 m | 8.4 m | 9.3 m | 9.8 m | Diveable |
| Partridge Point | 9.3 m | 7.8 m | 6.1 m | 6.6 m | 7.9 m | 9.3 m | Diveable |
| Roman Rock | 8.0 m | 6.5 m | 4.6 m | 5.3 m | 6.7 m | 8.2 m | Diveable |
| Glencairn | 7.9 m | 7.1 m | 5.9 m | 6.1 m | 6.9 m | 7.6 m | Diveable |
| Water's Edge | 7.8 m | 7.0 m | 5.7 m | 5.8 m | 6.9 m | 7.7 m | Diveable |
| Smitswinkelbaai | 7.7 m | 6.6 m | 5.0 m | 5.3 m | 6.5 m | 7.6 m | Diveable |
| Boulders Beach | 7.7 m | 6.7 m | 5.3 m | 5.5 m | 6.6 m | 7.6 m | Diveable |
| Castle Rock | 7.6 m | 6.5 m | 4.9 m | 5.0 m | 6.1 m | 7.3 m | Diveable |
| Windmill Beach | 7.2 m | 5.9 m | 4.2 m | 4.5 m | 6.0 m | 7.3 m | Diveable |
| Millers Point | 7.1 m | 6.1 m | 4.7 m | 4.9 m | 5.9 m | 7.0 m | Diveable |
| Blouklip | 6.5 m | 6.5 m | 6.9 m | 8.3 m | 9.0 m | 8.6 m | Not diveable |
| Pyramid Rock | 6.4 m | 4.8 m | 3.7 m | 5.0 m | 6.6 m | 7.4 m | Not diveable |
| A-Frame | 6.4 m | 5.8 m | 4.8 m | 4.9 m | 5.6 m | 6.3 m | Diveable |
| Long Beach | 5.7 m | 5.5 m | 4.9 m | 5.0 m | 5.5 m | 5.6 m | Diveable |
| Dalebrook | 4.6 m | 3.1 m | 1.7 m | 2.2 m | 3.5 m | 4.9 m | Diveable |
| Cow and Calf | 3.0 m | 2.8 m | 3.2 m | 4.8 m | 5.9 m | 5.2 m | Not diveable |
Median modelled visibility in metres, averaged over daylight hours. "Conditions" is the best daylight hour, called on the weakest safety gate.
Forecast generated Thursday 5 November 2026 at 16:10 SAST. Updated every three hours.
The wind that governs False Bay
A northwester cleans the False Bay western shore. A sustained southeaster crosses the whole bay, arrives onshore and dirties it.
Visibility here lags the weather. It is set by how hard the bottom has been stirred over the preceding days and how long the silt has had to drop out again, not by the swell in front of you right now. Instead, theviz reads six days of swell and wind history at each site, runs it through bottom-stirring physics and lets it settle a week forward, carrying four wave models crossed with three weather models through separately so the output is a distribution rather than a single number.
How to read these figures
Each number is the median of the modelled ensemble over daylight hours: half the members came out clearer, half murkier. The per-site pages add the 10th–90th percentile band and the probability of diveable conditions. A wide band means the weather models disagree about the swell or wind that will stir the bottom. It is the difference between "probably 8 m" and "anywhere from 3 to 14 m".
"Diveable" is called on the weakest safety gate (entry and exit, bottom surge, current, wind or surface chop) and is independent of clarity. A site can have beautiful water and still be undiveable because the entry is unworkable.
Water clarity on theviz is forecast from swell and wind history. It does not measure it, and it is not navigation or dive-safety advice. Conditions change fast; check locally, dive within your training, and verify marine protected-area boundaries before spearfishing.