Surf Forecasts:
Gansbaai surf forecast from 14 Sep 2026:
- Best quality surf: Monday 21 Sep, 2AM (local time) - 5.5ft (1.7m), 12s period, WSW swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 2AM (local time) - 10ft (3.0m), 14s period, WSW swell with 3,582 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 2AM (local time) - 5.5ft (1.7m), 12s period with WSW 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 Monday (Sep 21) at 2AM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 1.5m and 11s. 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 14s and forecast to arrive on Wednesday (Sep 16) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Saturday (Sep 19) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 21st Sep) | 5.5ft (1.7m) 12s |
| Best Surf | 2AM (Mon 21st Sep) | 5.5ft (1.7m) 12s |
| Most Powerful | 2AM (Wed 16th Sep) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Gansbaai over the next 16 days.
Short Range ForecastModerate rain (total 17mm), heaviest on Tue night. Very mild (max 19°C on Mon afternoon, min 13°C on Tue night). Winds increasing (light winds from the WNW on Mon morning, strong winds from the NW by Tue afternoon). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Thu morning. Very mild (max 18°C on Sat afternoon, min 13°C on Thu night). Winds decreasing (strong winds from the E on Sat morning, moderate winds from the SE by Sat night). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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 12 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WSW 14 | SW 14 | SSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 12 | SE 10 | SW 14 | SW 13 | WSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 374 | 346 | 396 | 610 | 1377 | 3582 | 2284 | 1682 | 2187 | 1638 | 1269 | 914 | 589 | 1086 | 1037 | 785 | 455 | 798 | 1167 | 1094 | 857 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross | cross | off |
High Tide | 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 | 8:36AM0.94m | 9:28PM0.96m | 11:24AM0.98m | 11:41PM1.02m | ||||||||
Low Tide | 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 | 2:38PM0.76m | 4:45AM0.69m | 5:48PM0.72m | ||||||||
 |  |  |  | |  | | | | | |  | | | | |  |  |  | | | |
 | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — |
 | — | 6:31 | — | — | 6:32 | — | — | 6:34 | — | — | 6:35 | — | — | 6:35 | — | — | 6:36 | — | — | 6:37 | — |
mm | 1 | — | — | — | — | 15 | 1 | — | — | 1 | — | — | — | — | — | — | — | 2 | 3 | 2 | — |
Temp °C | 17 | 19 | 17 | 17 | 19 | 16 | 15 | 15 | 13 | 14 | 16 | 14 | 16 | 17 | 16 | 17 | 18 | 16 | 16 | 16 | 16 |
Feels °C | 13 | 14 | 14 | 9 | 11 | 7 | 10 | 9 | 7 | 8 | 9 | 8 | 7 | 8 | 8 | 9 | 11 | 12 | 12 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 11 | SW 12 | SW 11 | SW 16 | WSW 14 | SW 14 | SSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 12 | SW 13 | SW 14 | SW 13 | WSW 12 |
| kJ | 374 | 256 | 187 | 209 | 1001 | 3582 | 2284 | 1682 | 2187 | 1638 | 1269 | 914 | 589 | 1086 | 1037 | 785 | 455 | 669 | 1167 | 1094 | 857 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | ESE 10 | ESE 11 | E 11 | WNW 8 | W 13 | W 13 | W 13 | — | E 10 | — | SW 14 | — | — | SW 15 | SW 14 | ESE 11 | SE 11 | SE 11 | SE 11 |
| kJ | 374 | 268 | 110 | 90 | 63 | 165 | 1049 | 905 | 324 | — | 50 | — | 301 | — | — | 109 | 248 | 180 | 659 | 606 | 515 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 18 | S 9 | ESE 11 | ESE 11 | E 11 | — | — | — | — | S 10 | — | — | — | — | — | — | — | WSW 18 |
| kJ | — | — | — | 150 | 2 | 42 | 23 | 9 | — | — | — | — | 7 | — | — | — | — | — | — | — | 31 |
Wind waves Height (m) Direction Period (s) | WNW 5 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | — | — | — | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 7 | ESE 7 | ESE 7 | SE 10 | SE 10 | S 6 | S 6 | — |
| kJ | 117 | 346 | 396 | 610 | 1377 | — | — | — | 209 | 228 | 161 | 190 | 237 | 445 | 547 | 691 | 1200 | 798 | 74 | 71 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 25 | 20 | 141 | 141 | 245 | 260 | 269 | 63 | 64 | 323 | 271 | 271 | 1366 | 120 | 111 | 110 | 120 | 192 | 340 | 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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