Surf Forecasts:
Gansbaai surf forecast from 12 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 2AM (local time) - 10ft (3.0m), 14s period, WSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 11PM (local time) - 10ft (3.0m), 15s period, WSW swell with 4,334 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 8PM (local time) - 5ft (1.6m), 13s period with SW swell.
Best Forecast Surf Conditions for Gansbaai this week:
The surf forecast for Gansbaai over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 8PM. The primary swell is predicted to be 1.6m and 13s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Gansbaai in the next 16 days are 3.0m 15s and forecast to arrive on Tuesday (Sep 15) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Sunday (Sep 13) at 11PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 13th Sep) | 5ft (1.6m) 13s |
| Best Surf | 2AM (Wed 16th Sep) | 10ft (3.0m) 14s |
| Most Powerful | 11PM (Tue 15th Sep) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Gansbaai over the next 16 days.
Short Range ForecastModerate rain (total 14mm), heaviest on Sat afternoon. Very mild (max 18°C on Mon afternoon, min 15°C on Sat morning). Winds decreasing (strong winds from the E on Sat night, light winds from the NW by Sun night). | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Tue night. Very mild (max 18°C on Tue afternoon, min 11°C on Tue night). Winds decreasing (strong winds from the WNW on Tue afternoon, light winds from the ESE by Tue night). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | WNW 7 | WNW 7 | SW 16 | WSW 14 | WSW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 12 | SW 12 | SW 13 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1889 | 3569 | 2668 | 1572 | 1119 | 663 | 423 | 309 | 415 | 757 | 1438 | 4005 | 2061 | 1369 | 882 | 897 | 770 | 897 | 1013 | 1982 | 2350 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | off | off |
High Tide | 3:59PM1.74m | 4:17AM1.56m | 4:29PM1.68m | 4:47AM1.49m | 4:59PM1.58m | 5:17AM1.40m | 5:28PM1.45m | 5:47AM1.29m | 5:58PM1.31m | 6:20AM1.17m | 6:32PM1.17m | 7:03AM1.04m | 7:21PM1.04m | ||||||||
Low Tide | 9:49AM0.04m | 10:16PM0.03m | 10:20AM0.09m | 10:46PM0.09m | 10:49AM0.17m | 11:15PM0.19m | 11:17AM0.28m | 11:43PM0.30m | 11:46AM0.40m | 00:12AM0.43m | 12:16PM0.52m | 00:49AM0.55m | 12:56PM0.65m | 1:53AM0.67m | |||||||
 |  |  | | | | |  |  |  | |  | | | | |  |  | | | | |
 | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — |
 | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:32 | — | — | 6:34 | — | — | 6:35 | — | — | 6:35 | — |
mm | 2 | 7 | — | 2 | 1 | — | 2 | — | — | — | — | 10 | 3 | 1 | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 18 | 17 | 17 | 18 | 16 | 13 | 14 | 14 | 16 | 16 | 15 | 16 | 16 | 15 |
Feels °C | 10 | 11 | 9 | 12 | 11 | 14 | 14 | 11 | 13 | 10 | 9 | 10 | 9 | 9 | 8 | 9 | 9 | 10 | 9 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 | ESE 10 | ESE 10 | SW 12 | SW 11 | SW 11 | SW 16 | WSW 14 | WSW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 12 | SW 12 | SW 13 | SW 14 |
| kJ | 1889 | 3569 | 2668 | 1572 | 1119 | 684 | 320 | 309 | 183 | 177 | 1438 | 4005 | 2061 | 1369 | 882 | 897 | 770 | 897 | 1013 | 1982 | 2350 |
Swell 2 Height (m) Direction Period (s) | S 10 | — | — | — | — | SW 13 | SW 12 | ESE 10 | ESE 10 | SW 18 | ESE 13 | ESE 11 | SW 13 | W 13 | W 13 | W 12 | W 12 | W 12 | SW 15 | E 10 | ESE 10 |
| kJ | 49 | — | — | — | — | 663 | 423 | 198 | 121 | 199 | 127 | 43 | 694 | 799 | 468 | 190 | 104 | 65 | 472 | 226 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SE 13 | — | SW 17 | ESE 11 | S 9 | E 11 | ESE 11 | ESE 11 | E 10 | E 10 | — | — | W 11 | — | — |
| kJ | — | — | — | — | — | — | 27 | — | 11 | 98 | 2 | 240 | 25 | 23 | 75 | 51 | — | — | 21 | — | — |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 7 | ESE 8 | ESE 9 | ESE 10 | — | WNW 6 | WNW 6 | WNW 7 | WNW 7 | WNW 8 | — | — | — | SE 6 | SE 6 | SE 5 | SE 4 | E 9 | ESE 10 | ESE 9 |
| kJ | 190 | 412 | 1006 | 1422 | 1601 | — | 201 | 292 | 415 | 757 | 939 | — | — | — | 224 | 200 | 115 | 39 | 43 | 117 | 28 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 260 | 70 | 7 | 29 | 7 | 33 | 141 | 25 | 184 | 264 | 0 | 29 | 29 | 7 | 245 | 271 | 29 | 245 | 325 | 0 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Gansbaai surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Gansbaai Surf forecast
The above surf forecast table for Gansbaai provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Gansbaai can be found by selecting the local surf guide option on the grey menu. Our Gansbaai surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Gansbaai) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Gansbaai may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Gansbaai is 21 km (13 miles) from Hermanus. If you plan a holiday in Overberg, look for hotels and other accommodation in Hermanus. Hermanus has rooms for a wide range of budgets as well as car hire and transport links.
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