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Surf Forecasts:
Gansbaai surfForecast / Overberg / South Africa
16 Day Weather and Surf, issued 7 pm Sunday 17 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
17.0° C
(Which is normal for this time of year)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 (May 18) at 2AM. The primary swell is predicted to be 1.6m and 13s period with a secondary swell of 0.7m and 10s. 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 9s and forecast to arrive on Tuesday (May 19) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Wednesday (May 20) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 18th May) | 5ft (1.6m) 13s |
| Best Surf | 2AM (Mon 18th May) | 5ft (1.6m) 13s |
| Most Powerful | 8PM (Tue 19th May) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Gansbaai over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 16°C on Sun night). Winds increasing (light winds from the E on Sun night, strong winds from the ESE by Tue afternoon). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed night. Very mild (max 18°C on Wed night, min 15°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
WSW 13 | WSW 14 | WSW 14 | SSE 8 | SE 8 | SE 8 | SE 9 | WSW 12 | SE 9 | SE 9 | SE 9 | SE 9 | SW 18 | SW 16 | SW 16 | SW 14 | SW 13 | SW 12 | SW 14 | SW 13 | SW 16 | |
837 | 1057 | 990 | 875 | 1083 | 854 | 1242 | 125 | 639 | 497 | 321 | 202 | 314 | 375 | 492 | 833 | 809 | 319 | 961 | 711 | 773 | |
Wind (km/h) | |||||||||||||||||||||
off | off | cross-off | off | off | off | off | off | off | glassy | on | on | cross-on | on | cross-on | glassy | glassy | cross | cross-off | on | on | |
High Tide | 3:56AM1.68m | 4:28PM1.56m | 4:43AM1.59m | 5:17PM1.51m | 5:34AM1.47m | 6:11PM1.43m | 6:30AM1.33m | 7:12PM1.35m | 7:36AM1.21m | 8:23PM1.30m | 8:55AM1.12m | 9:39PM1.28m | 10:19AM1.10m | ||||||||
Low Tide | 9:46PM0.11m | 10:17AM0.01m | 10:35PM0.16m | 11:04AM0.09m | 11:27PM0.24m | 11:53AM0.20m | 00:25AM0.34m | 12:49PM0.31m | 1:34AM0.43m | 1:52PM0.41m | 2:55AM0.49m | 3:06PM0.48m | 4:19AM0.49m | 4:22PM0.50m | |||||||
 |  |  |  | | | |  | |  |  | | | | |  | | | | | | |
 | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:35 | — |
 | 5:46 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:44 | — | — | 5:43 | — | — | 5:43 |
— | — | — | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 18 | 19 | 17 | 18 | 20 | 18 | 19 | 20 | 18 | 17 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 17 | 17 |
15 | 15 | 15 | 12 | 13 | 15 | 12 | 17 | 17 | 17 | 13 | 14 | 15 | 16 | 16 | 18 | 17 | 17 | 16 | 17 | 16 | |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | SSE 11 | SE 9 | SE 9 | SE 9 | SE 8 | SW 16 | SW 16 | SW 14 | SW 13 | SW 9 | SW 14 | SW 13 | SW 16 |
 kJ | 837 | 1057 | 990 | 630 | 458 | 414 | 237 | 125 | 109 | 497 | 321 | 202 | 136 | 375 | 492 | 833 | 809 | 202 | 961 | 711 | 773 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 11 | SSW 8 | S 16 | SSE 15 | SSE 14 | SSE 12 | SSE 11 | WSW 12 | SW 14 | SW 13 | SW 12 | SW 11 | WSW 10 | SSE 8 | SSE 5 | SE 12 | SW 12 | SW 18 | SW 16 | WSW 10 |
| kJ | 100 | 57 | 137 | 5 | 43 | 73 | 103 | 111 | 121 | 93 | 163 | 114 | 126 | 141 | 92 | 23 | 36 | 319 | 113 | 314 | 135 |
Swell 3 Height (m) Direction Period (s) | S 14 | S 13 | S 12 | — | — | SSW 10 | S 20 | SSW 9 | SW 15 | SSE 11 | SSE 11 | SW 20 | SW 18 | S 5 | WSW 11 | SSE 9 | SW 16 | SW 15 | SE 12 | SSE 12 | SSE 11 |
| kJ | 96 | 85 | 75 | — | — | 18 | 7 | 16 | 55 | 51 | 12 | 136 | 314 | 28 | 146 | 8 | 94 | 258 | 37 | 52 | 47 |
Wind waves Height (m) Direction Period (s) | SSE 5 | SE 5 | SE 5 | SSE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | — | NW 4 | WNW 4 | WNW 4 | NW 4 | — | — | — | — | — | — | — |
| kJ | 42 | 66 | 106 | 875 | 1083 | 854 | 1242 | 945 | 639 | — | 21 | 35 | 35 | 3 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 116 | 70 | 70 | 70 | 63 | 0 | 0 | 0 | 52 | 52 | 25 | 33 | 25 | 0 | 0 | 29 | 0 | 20 | 25 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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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