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Gansbaai surfForecast / Overberg / South Africa
12 Day Weather and Surf, issued 7 pm Saturday 20 Dec 2025 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
18.8° C
(Which is slightly cooler than normal)Best Forecast Surf Conditions for Gansbaai this week:
The surf forecast for Gansbaai over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Dec 22) at 5AM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.7m and 10s. Another secondary swell of 1.7m and 7s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Gansbaai in the next 12 days are 2.0m 12s and forecast to arrive on Sunday (Dec 21) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 6s period and expected on Sunday (Dec 21) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 22nd Dec) | 3.5ft (1.1m) 11s |
| Best Surf | 5AM (Mon 22nd Dec) | 3.5ft (1.1m) 11s |
| Most Powerful | 2AM (Sun 21st Dec) | 6.5ft (2.0m) 12s |
Table - best surf conditions forecast for Gansbaai over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Some drizzle, heaviest during Mon night. Warm (max 24°C on Sun morning, min 20°C on Sat night). Winds decreasing (strong winds from the ESE on Sun afternoon, light winds from the SE by Mon night). | Days 3-6 Weather Summary Some drizzle, heaviest during Fri afternoon. Warm (max 22°C on Thu afternoon, min 18°C on Tue night). Winds increasing (light winds from the SSE on Tue night, strong winds from the SE by Wed afternoon). | |||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Sat 27 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 11 | 8 | 11 | 9 | 10 | 10 | 7 | 9 | 7 | 8 | 12 | 12 | 11 | 11 | 12 | 11 | 11 | 11 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 1225 | 411 | 407 | 360 | 292 | 263 | 225 | 127 | 90 | 171 | 608 | 612 | 505 | 396 | 486 | 344 | 418 | 469 | 377 | 326 | 286 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | off | off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | |
High Tide / height (m) | 3:58AM 1.42 | 4:01PM 1.44 | 4:32AM 1.43 | 4:35PM 1.42 | 5:06AM 1.43 | 5:09PM 1.38 | 5:42AM 1.43 | 5:47PM 1.33 | 6:21AM 1.41 | 6:30PM 1.27 | 7:05AM 1.39 | 7:22PM 1.20 | 7:58AM 1.36 | |||||||||
Low Tide / height (m) | 9:47PM 0.19 | 10:01AM 0.32 | 10:18PM 0.19 | 10:35AM 0.33 | 10:50PM 0.20 | 11:10AM 0.35 | 11:22PM 0.22 | 11:48AM 0.37 | 11:57PM 0.26 | 12:32PM 0.40 | 12:37AM 0.32 | 1:23PM 0.42 | 1:25AM 0.39 | 2:24PM 0.44 | ||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Sat 27 | ||||||||||||||||
| Sunrise | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | - | 5:28 | - | - | 5:28 | - | - | 5:28 | - | |
| Sunset | - | - | 7:53 | - | - | 7:54 | - | - | 7:54 | - | - | 7:55 | - | - | 7:55 | - | - | 7:57 | - | - | 7:57 | |
 |  | | |  | |  |  | | | | | | | | | |  | | | | ||
Rain (mm) | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | 1 | 4 | - | - | |
| Temp. °C | 21 | 24 | 24 | 21 | 24 | 24 | 22 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 22 | 20 | 20 | 19 | 19 | 20 | 21 | |
| Feels °C (?) | 17 | 19 | 18 | 17 | 24 | 22 | 23 | 20 | 20 | 19 | 16 | 15 | 15 | 16 | 16 | 15 | 17 | 15 | 16 | 15 | 15 | |
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Surf Rating (10 Max)
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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.
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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 12 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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