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Surf Forecasts:
Cape St Martin surfForecast / West Coast / South Africa
48hr Weather and Surf, issued 7 am Saturday 18 Apr 2026 SASTForecast update in hr min s Forecast update imminent
Cape St Martin surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cape St Martin sea temperature is
15.4° C
(Which is 2.0°C colder than average for this time of year)How big are the waves at Cape St Martin today?
The current surf forecast for Cape St Martin at 12PM is: 3.5m 12s primary swell from a Southwest direction (forecast issued at 07:00am April 18). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 11ft (3.5m) | 12s |
| Afternoon (18 Apr) | 10ft (3.0m) | 11s |
| Evening (18 Apr) | 7.5ft (2.3m) | 13s |
Table - waves today at Cape St Martin. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 11 | 11 | 13 | 13 | 13 | 13 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 14 | 14 | 14 | 14 | 14 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2624 | 3330 | 3279 | 2581 | 1642 | 1817 | 1518 | 1806 | 552 | 390 | 595 | 1303 | 3434 | 4343 | 4759 | 4803 | 4983 | 4465 | 6496 | 6641 | 6083 | 5366 | 4718 | 4003 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- on | on | on | on | on | on | on | on | on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | on | on |
High Tide / height (m) | 3:57PM 1.65 | 4:09AM 1.76 | 4:38PM 1.60 | 4:52AM 1.66 | 5:23PM 1.51 | |||||||||||||||||||
Low Tide / height (m) | 9:47AM -0.08 | 9:58PM 0.06 | 10:27AM -0.03 | 10:40PM 0.12 | 11:09AM 0.07 | 11:26PM 0.22 | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| Sunrise | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:21 | - | - | - |
 |  | | |  |  | | |  |  | | | | |  | |  | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | 2 | 2 | 2 | 2 | 1 | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Feels °C (?) | 15 | 14 | 12 | 12 | 13 | 13 | 14 | 13 | 11 | 9 | 8 | 8 | 9 | 6 | 6 | 7 | 9 | 11 | 11 | 11 | 11 | 12 | 12 | 13 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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