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Gansbaai surfForecast / Overberg / South Africa
12 Day Weather and Surf, issued 1 am Tuesday 17 Jun 2025 SAST
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 Wednesday (Jun 18) at 8PM. The primary swell is predicted to be 4.0m and 12s period with a secondary swell of 0.4m and 13s. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Gansbaai in the next 12 days are 5.5m 13s and forecast to arrive on Friday (Jun 20) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 18th Jun) | 13ft (4.0m) 12s |
| Best Surf | 8PM (Wed 18th Jun) | 13ft (4.0m) 12s |
| Most Powerful | 5PM (Fri 20th Jun) | 18ft (5.5m) 13s |
Table - best surf conditions forecast for Gansbaai over the next 12 days.
Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 12 | 12 | 12 | 15 | 14 | 13 | 12 | 13 | 13 | 14 | 14 | 14 | 13 | 12 | 12 | 13 | 15 | 14 | 16 | 14 | 14 | 13 | 12 | 12 | 9 | 9 | 9 | 10 | 11 | 11 | 11 | 10 | 10 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 4432 | 3242 | 5703 | 5109 | 4356 | 7824 | 5336 | 3422 | 3694 | 8168 | 10284 | 8367 | 5247 | 3515 | 2006 | 1157 | 1563 | 3016 | 5932 | 7503 | 9257 | 5115 | 3928 | 4103 | 2927 | 2826 | 3346 | 2618 | 1990 | 1721 | 1719 | 1487 | 939 | 663 | 632 | 776 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | on | on | cross- on | cross- on | cross- on | on | cross- on | glass | cross- on | on | cross | cross- on | on | cross- on | cross- on | cross- on | cross | cross- on | on | cross- on | cross- on | on | on | cross- on | on | on | cross- on | cross- on | cross- off | cross | on | cross- on |
High Tide / height (m) | 7:45PM 1.37 | 8:09AM 1.19 | 8:46PM 1.37 | 9:22AM 1.16 | 9:52PM 1.38 | 10:39AM 1.18 | 11:00PM 1.41 | 11:50AM 1.24 | 12:05AM 1.46 | 12:52PM 1.32 | 1:04AM 1.51 | 1:47PM 1.40 | 1:59AM 1.55 | 2:37PM 1.47 | 2:50AM 1.57 | 3:25PM 1.52 | 3:38AM 1.56 | 4:10PM 1.54 | 4:23AM 1.52 | 4:54PM 1.54 | 5:07AM 1.45 | 5:37PM 1.50 | ||||||||||||||
Low Tide / height (m) | 1:15PM 0.35 | 2:07AM 0.43 | 2:12PM 0.40 | 3:16AM 0.41 | 3:20PM 0.44 | 4:29AM 0.37 | 4:33PM 0.44 | 5:38AM 0.30 | 5:46PM 0.41 | 6:40AM 0.23 | 6:51PM 0.35 | 7:36AM 0.16 | 7:50PM 0.28 | 8:26AM 0.11 | 8:43PM 0.22 | 9:14AM 0.08 | 9:33PM 0.19 | 9:58AM 0.08 | 10:21PM 0.20 | 10:41AM 0.11 | 11:07PM 0.23 | 11:21AM 0.17 | 11:52PM 0.29 | |||||||||||||
Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||||||
| Sunrise | 7:48 | - | - | 7:48 | - | - | 7:48 | - | - | 7:48 | - | - | 7:48 | - | - | 7:48 | - | - | 7:48 | - | - | 7:48 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - |
| Sunset | - | 5:37 | - | - | 5:37 | - | - | 5:38 | - | - | 5:38 | - | - | 5:38 | - | - | 5:38 | - | - | 5:38 | - | - | 5:39 | - | - | 5:39 | - | - | 5:39 | - | - | 5:40 | - | - | 5:40 | - |
 |  |  |  | |  | | |  | | | | | | | | | | | | | | | | | |  |  | | | | | | | | | |
Rain (mm) | - | - | 4 | 2 | - | - | - | - | - | 4 | 2 | - | - | - | - | - | - | 4 | - | - | - | - | - | - | - | 16 | 8 | 4 | 2 | 3 | - | - | - | - | - | - |
| Temp. °C | 14 | 15 | 15 | 15 | 15 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 12 | 14 | 13 | 14 | 16 | 16 | 15 | 15 | 14 | 12 | 14 | 13 | 16 | 13 | 13 | 12 | 13 | 13 | 12 | 14 | 13 | 12 | 14 | 13 |
| Feels °C (?) | 8 | 7 | 7 | 10 | 10 | 10 | 9 | 8 | 8 | 7 | 6 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 10 | 12 | 10 | 5 | 1 | 0 | 4 | 4 | 5 | 8 | 11 | 11 | 9 | 9 | 9 |
Short Range Forecast: Light rain (total 6mm), mostly falling on Tue night. Very mild (max 15°C on Tue afternoon, min 13°C on Tue morning). Winds increasing (light winds from the W on Wed night, strong winds from the WNW by Thu night). | Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Fri morning. Very mild (max 16°C on Sun afternoon, min 11°C on Sat morning). Winds decreasing (strong winds from the W on Fri morning, calm by Fri night). | Days 6-9 Weather Summary Heavy rain (total 24mm), heaviest during Wed afternoon. Very mild (max 16°C on Wed morning, min 11°C on Mon night). Winds increasing (calm on Mon night, gales from the W by Wed night). | Long Range Forecast: Light rain (total 9mm), mostly falling on Thu morning. Very mild (max 14°C on Fri afternoon, min 10°C on Fri night). Winds decreasing (strong winds from the SW on Thu morning, light winds from the WSW by Fri afternoon). | |||||||||||||||||||||||||||||||||
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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 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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