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Surf Forecasts:
Gansbaai surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 1 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
16.7° C
(Which is normal for this time of year)How big are the waves at Gansbaai today?
The current surf forecast for Gansbaai at 9AM is: 1.4m 9s primary swell from a Southeast direction and 0.7m 13s secondary swell from a Southwest direction (forecast issued at 01:00am 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 ForecastLight rain (total 3mm), mostly falling on Fri morning. Very mild (max 18°C on Thu afternoon, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
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 | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SE 9 | 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 15 | SW 14 | SW 14 | |
359 | 328 | 297 | 275 | 225 | 164 | 135 | 231 | 314 | 311 | 300 | 375 | 498 | 492 | 450 | 685 | 736 | 716 | 701 | 796 | 459 | 282 | 350 | 992 | |
Wind (km/h) | ||||||||||||||||||||||||
off | glassy | cross-on | on | on | on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | glassy | glassy | cross | cross | cross | glassy | glassy | cross-off | off | off | |
High Tide | 6:30AM1.33m | 7:12PM1.35m | 7:36AM1.21m | 8:23PM1.30m | 8:55AM1.12m | 9:39PM1.28m | ||||||||||||||||||
Low Tide | 00:25AM0.34m | 12:49PM0.31m | 1:34AM0.43m | 1:52PM0.41m | 2:55AM0.49m | 3:06PM0.48m | ||||||||||||||||||
 |  |  | | | | | | |  |  | | |  | | | | | | | | | | | |
 | — | 7:33 | — | — | — | — | — | — | — | 7:33 | — | — | — | — | — | — | — | 7:33 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:43 | — | — |
— | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 16 | 16 | 17 | 18 | 18 | 17 | 16 | 16 | 17 | 17 | 18 | 18 | 17 | 17 | 16 | 15 | 15 | 16 | 17 | 18 | 18 | 17 | 17 |
17 | 17 | 15 | 14 | 15 | 14 | 14 | 13 | 13 | 15 | 15 | 16 | 17 | 17 | 17 | 16 | 14 | 14 | 15 | 16 | 18 | 17 | 16 | 15 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 8 | SSW 6 | SSW 7 | S 7 | S 7 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 14 | SW 14 |
 kJ | 359 | 328 | 297 | 275 | 225 | 164 | 135 | 100 | 80 | 82 | 86 | 87 | 152 | 176 | 150 | 685 | 736 | 716 | 701 | 796 | 459 | 282 | 350 | 992 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | S 7 | S 6 | S 6 | S 6 | SSE 6 | SW 8 | SW 8 | SW 12 | SSE 13 |
| kJ | 93 | 113 | 140 | 163 | 144 | 114 | 114 | 110 | 101 | 311 | 300 | 375 | 498 | 492 | 450 | 104 | 78 | 47 | 35 | 19 | 142 | 129 | 228 | 33 |
Swell 3 Height (m) Direction Period (s) | SSE 11 | SE 11 | SW 11 | SSE 11 | SW 21 | SW 20 | SW 20 | SW 19 | SW 18 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | ESE 8 | ESE 13 | ESE 13 | ESE 12 | SW 16 | SSE 6 | SW 15 | SW 8 | E 12 |
| kJ | 48 | 31 | 30 | 12 | 68 | 136 | 134 | 231 | 314 | 123 | 99 | 117 | 115 | 117 | 117 | 11 | 33 | 32 | 30 | 93 | 12 | 258 | 93 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | WNW 2 | WNW 3 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | SSW 6 | — | — | — | — | — | — | — | — | — | — | SE 6 | SE 5 |
| kJ | — | — | — | 1 | 4 | 15 | 31 | 37 | 28 | 21 | 10 | 156 | — | — | — | — | — | — | — | — | — | — | 8 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 7 | 52 | 47 | 85 | 52 | 52 | 25 | 25 | 25 | 33 | 54 | 7 | 0 | 0 | 7 | 7 | 7 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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