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Surf Forecasts:
Gansbaai surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 7 am Thursday 21 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
16.5° C
(Which is slightly cooler than normal)How big are the waves at Gansbaai today?
The current surf forecast for Gansbaai at 11AM is: 1.3m 9s primary swell from a Southeast direction and 0.7m 13s secondary swell from a Southwest direction, 0.3m 2s secondary swell from a West-northwest direction (forecast issued at 07:00am May 21). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 4.5ft (1.4m) | 9s |
| Afternoon (21 May) | 3.5ft (1.1m) | 9s |
| Evening (21 May) | 1.5ft (0.4m) | 19s |
Table - waves today at Gansbaai. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Sat afternoon, min 16°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SW 20 | SW 19 | SW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 14 | SW 14 | SW 14 | |
328 | 297 | 275 | 220 | 148 | 134 | 231 | 314 | 311 | 300 | 375 | 498 | 492 | 450 | 685 | 736 | 716 | 846 | 473 | 451 | 319 | 346 | 667 | 865 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | on | on | on | glassy | cross-on | cross-on | cross-on | cross | glassy | cross-off | cross-off | off | off | cross-off | |
High Tide | 7:12PM1.35m | 7:36AM1.21m | 8:23PM1.30m | 8:55AM1.12m | 9:39PM1.28m | |||||||||||||||||||
Low Tide | 12:49PM0.31m | 1:34AM0.43m | 1:52PM0.41m | 2:55AM0.49m | 3:06PM0.48m | |||||||||||||||||||
 |  |  | | |  | |  | |  | | | | | | | | | | | | | | | |
 | 7:33 | — | — | — | — | — | — | — | 7:33 | — | — | — | — | — | — | — | 7:33 | — | — | — | — | — | — | 7:35 |
 | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:43 | — | — | 5:43 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 17 | 18 | 18 | 18 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 18 | 19 | 17 | 17 | 16 |
17 | 16 | 16 | 15 | 14 | 13 | 14 | 13 | 14 | 15 | 15 | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 18 | 18 | 18 | 15 | 16 | 15 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SW 18 | SW 18 | SW 16 | SSW 6 | SSW 6 | SSW 6 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 8 | SW 14 | SW 14 |
 kJ | 328 | 297 | 275 | 220 | 148 | 100 | 100 | 70 | 311 | 300 | 375 | 72 | 82 | 59 | 685 | 736 | 716 | 846 | 473 | 451 | 319 | 109 | 667 | 865 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 16 | SW 16 | SW 15 | SSW 6 | S 6 | SSE 6 | SSE 6 | SW 9 | SW 8 | SW 8 | SW 12 | SW 8 | SE 6 |
| kJ | 113 | 140 | 163 | 144 | 114 | 114 | 108 | 126 | 123 | 99 | 101 | 498 | 492 | 450 | 54 | 54 | 29 | 28 | 197 | 184 | 129 | 228 | 95 | 8 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SW 11 | SSE 11 | SW 21 | SW 20 | SW 20 | SW 19 | SW 18 | ESE 8 | ESE 8 | ESE 8 | SW 11 | SW 11 | SW 11 | ESE 8 | ESE 13 | WSW 5 | ESE 12 | SSE 6 | SSE 6 | SW 15 | SW 14 | SE 6 | SE 13 |
| kJ | 31 | 30 | 12 | 68 | 136 | 134 | 231 | 314 | 62 | 46 | 38 | 115 | 117 | 117 | 11 | 33 | 9 | 30 | 20 | 13 | 258 | 346 | 11 | 40 |
Wind waves Height (m) Direction Period (s) | — | — | WNW 2 | WNW 3 | WNW 4 | W 5 | WNW 5 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 1 | 6 | 20 | 52 | 40 | 28 | 28 | 21 | 9 | 5 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 7 | 25 | 52 | 70 | 52 | 25 | 25 | 25 | 25 | 25 | 20 | 20 | 0 | 7 | 7 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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