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Surf Forecasts:
Gansbaai surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 1 pm Monday 18 May 2026 SASTForecast update in hr min s Forecast update imminent
Gansbaai surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gansbaai sea temperature is
16.9° C
(Which is normal for this time of year)How big are the waves at Gansbaai today?
The current surf forecast for Gansbaai at 8PM is: 1.5m 13s primary swell from a West-southwest direction and 1.6m 8s secondary swell from a South direction (forecast issued at 01:00pm May 18). An open ocean swell of 1.6m 6s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.6m) | 14s |
| Afternoon (18 May) | 5ft (1.5m) | 14s |
| Evening (18 May) | 5ft (1.5m) | 13s |
Table - waves today at Gansbaai. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 20°C on Wed afternoon, min 16°C on Tue night). Winds decreasing (strong winds from the ESE on Tue afternoon, calm by Thu morning). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 14 | WSW 14 | SW 14 | WSW 13 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SSE 11 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | |
1057 | 850 | 893 | 796 | 632 | 871 | 1195 | 1003 | 906 | 795 | 1033 | 1671 | 1507 | 237 | 187 | 184 | 125 | 125 | 151 | 657 | 525 | 525 | 503 | 437 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | glassy | |
High Tide | 4:28PM1.56m | 4:43AM1.59m | 5:17PM1.51m | 5:34AM1.47m | 6:11PM1.43m | 6:30AM1.33m | ||||||||||||||||||
Low Tide | 10:17AM0.01m | 10:35PM0.16m | 11:04AM0.09m | 11:27PM0.24m | 11:53AM0.20m | 00:25AM0.34m | ||||||||||||||||||
 | | |  | | | | | | | | |  | | | | |  | |  | | | |  | |
 | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:33 | — |
 | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | 5:45 |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 19 | 18 | 17 | 17 | 17 | 17 | 17 | 18 | 19 | 17 | 16 | 17 | 17 | 17 | 17 | 18 | 20 | 19 | 17 | 16 | 17 | 16 | 17 |
15 | 14 | 13 | 12 | 11 | 11 | 11 | 12 | 13 | 14 | 11 | 9 | 13 | 12 | 13 | 13 | 14 | 14 | 15 | 14 | 14 | 16 | 15 | 17 | |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | SW 14 | S 8 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SSE 11 | SSE 11 | WSW 11 | SW 14 | SE 9 | SE 9 | SE 9 |
 kJ | 1057 | 850 | 893 | 305 | 630 | 630 | 581 | 581 | 458 | 414 | 414 | 382 | 281 | 237 | 187 | 184 | 125 | 109 | 151 | 84 | 100 | 525 | 503 | 437 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 13 | S 8 | WSW 13 | SSE 12 | S 16 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSW 9 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | WSW 12 | WSW 12 | SSE 12 | WSW 11 | SW 14 | SW 13 | SW 13 |
| kJ | 57 | 158 | 186 | 796 | 28 | 5 | 25 | 23 | 43 | 41 | 73 | 73 | 17 | 104 | 87 | 117 | 115 | 125 | 91 | 52 | 47 | 93 | 113 | 109 |
Swell 3 Height (m) Direction Period (s) | S 13 | SSW 15 | S 12 | SSE 12 | S 17 | S 16 | — | — | — | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SW 15 | SW 15 | SW 14 | SE 12 | WSW 11 | WSW 11 | WSW 11 |
| kJ | 85 | 144 | 75 | 49 | 6 | 5 | — | — | — | 20 | 18 | 18 | 9 | 17 | 16 | 16 | 16 | 35 | 55 | 54 | 36 | 47 | 23 | 23 |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | ESE 6 | ESE 6 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | SE 9 | SE 9 | ENE 3 | ESE 9 | — |
| kJ | 51 | 92 | 143 | 162 | 632 | 871 | 1195 | 1003 | 906 | 795 | 1033 | 1671 | 1507 | 1189 | 1108 | 882 | 785 | 882 | 789 | 657 | 525 | 3 | 1175 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 116 | 116 | 111 | 111 | 111 | 70 | 70 | 70 | 63 | 106 | 70 | 63 | 63 | 63 | 7 | 57 | 57 | 7 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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