Surf Forecasts:
Robberg surf forecast from 10 Sep 2026:
- Best quality surf: Friday 11 Sep, 8AM (local time) - 6ft (1.8m), 13s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 11AM (local time) - 11ft (3.5m), 15s period, SW swell with 5,588 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 8AM (local time) - 3.5ft (1.1m), 13s period with SW swell.
Best Forecast Surf Conditions for Robberg this week:
The surf forecast for Robberg over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 10) at 8AM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.7m and 16s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Robberg in the next 16 days are 3.5m 15s and forecast to arrive on Wednesday (Sep 16) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 12s period and expected on Saturday (Sep 12) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 10th Sep) | 3.5ft (1.1m) 13s |
| Best Surf | 8AM (Fri 11th Sep) | 6ft (1.8m) 13s |
| Most Powerful | 11AM (Wed 16th Sep) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Robberg over the next 16 days.
The Lowdown
Alright, let’s talk about Robberg. It’s a beach and reef set-up that’s exposed to the swell, and the water is sitting at 56° right now. That’s a massive 7° colder than normal for this time of year – seriously unusual, so you’ll want a thick wetsuit if you’re heading out. It’s inconsistent here, so when it lines up, you’ve got to move.
The week starts quiet. Thursday the 10th is a write-off – cross-on wind and messy conditions. Not worth paddling out. Friday morning the 11th is where it gets interesting. We’ve got a glassy surface, light offshore wind from the ESE at 3 mph, and a 6ft SW groundswell rolling in with a 13-second period. That’s a solid, clean wave for experienced surfers. The wave energy is moderate at 1084 – not pumping, but the quality is there. This is your stand-out for the whole run: Robberg on Friday morning. It’s clean, it’s got push, and there’s no one out early.
Saturday and Sunday are messy. Strong cross-shore winds chop it up, and by Sunday afternoon the swell jumps to 13ft but with a short, weak period – just messy, lumpy conditions. Not your day.
Monday the 14th morning offers another window. The wind switches to a cross-off from the NE at 3 mph, and it’s clean. Swell is 8ft from the ESE with a 10-second period, so it’s punchy but a bit short-period. Wave energy is moderate at 1807. This one’s for experienced surfers only – size and power are up there. Tuesday the 15th morning is glassy again, 5ft from the east with an 11-second period, and the wave energy is low-moderate at 885. That’s a fun, clean session for the intermediate crew.
The second week gets more hit-and-miss. The 19th of September is promising – Saturday morning brings a cross-off breeze from the NNE at 6 mph, a clean 5ft SW groundswell with a very long 17-second period. Wave energy sits at 2247, moderate but with serious push. That long period is best handled at Robberg’s reef sections – the wave will stand up nicely. Good for experienced surfers. After that, it’s a mixed bag of fresh cross-shore winds and lumpy seas. The 20th afternoon still has a 8ft SW swell (17 seconds) and cross-off potential, but the wind is cross-shore.
Overall, don’t waste energy on most of it. Hit Friday the 11th morning (clean, glassy, solid groundswell) and Monday the 14th morning (clean, punchy, for pros).
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat morning. Very mild (max 19°C on Thu morning, min 16°C on Thu night). Winds increasing (calm on Fri morning, fresh winds from the ESE by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 21mm), heaviest during Mon night. Warm (max 22°C on Sun night, min 14°C on Tue night). Winds increasing (calm on Mon night, fresh winds from the WSW by Tue night). | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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 16 | SW 15 | SW 13 | SW 13 | SW 12 | SW 12 | ESE 7 | SW 15 | SW 16 | SW 14 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 11 | E 11 | SW 12 | SW 16 | SW 15 | SSW 9 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 757 | 1933 | 1367 | 966 | 712 | 494 | 389 | 1466 | 2383 | 1785 | 2620 | 2047 | 1280 | 1038 | 846 | 466 | 396 | 2445 | 5588 | 1556 | 1155 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | glassy | cross-on | cross | cross | cross-on | cross | cross | cross | cross-off | cross-off | cross | glassy | glassy | cross-off | cross-off | cross-on | on | cross-off |
High Tide | 3:19PM1.86m | 3:34AM1.74m | 3:51PM1.91m | 4:06AM1.75m | 4:22PM1.90m | 4:36AM1.72m | 4:51PM1.84m | 5:05AM1.64m | 5:18PM1.73m | 5:32AM1.54m | 5:45PM1.59m | 5:59AM1.42m | 6:11PM1.44m | ||||||||
Low Tide | 9:08AM0.03m | 9:34PM0.02m | 9:40AM-0.02m | 10:05PM-0.01m | 10:09AM-0.02m | 10:35PM0.01m | 10:38AM0.03m | 11:03PM0.08m | 11:05AM0.12m | 11:29PM0.18m | 11:31AM0.23m | 11:55PM0.30m | 11:57AM0.37m | 00:22AM0.44m | |||||||
 | |  | | | |  |  |  | | | | | |  |  | | |  | | | |
 | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — |
 | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:17 | — |
mm | — | — | — | — | — | — | 1 | — | 2 | 1 | 2 | 1 | — | 3 | 12 | — | — | 2 | 10 | 2 | 1 |
Temp °C | 19 | 19 | 17 | 17 | 18 | 16 | 18 | 19 | 17 | 17 | 18 | 22 | 22 | 19 | 16 | 20 | 20 | 18 | 13 | 15 | 15 |
Feels °C | 19 | 19 | 17 | 18 | 17 | 14 | 17 | 18 | 13 | 13 | 16 | 20 | 22 | 17 | 17 | 20 | 18 | 18 | 9 | 10 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 15 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 12 | SW 15 | SW 16 | SW 14 | SW 14 | ESE 10 | ESE 10 | ESE 10 | E 11 | E 11 | SW 12 | SW 16 | E 10 | SW 14 | SW 13 |
| kJ | 558 | 1933 | 1367 | 966 | 712 | 494 | 235 | 1466 | 2383 | 1785 | 1253 | 2047 | 1280 | 1038 | 846 | 466 | 396 | 2445 | 102 | 1484 | 1155 |
Swell 2 Height (m) Direction Period (s) | SW 16 | E 10 | E 10 | SSW 8 | S 7 | — | SW 15 | — | S 12 | — | — | SW 13 | SW 13 | SW 12 | SW 12 | SW 10 | E 11 | E 10 | E 10 | E 10 | SW 9 |
| kJ | 757 | 51 | 54 | 81 | 97 | — | 309 | — | 3 | — | — | 711 | 527 | 423 | 583 | 362 | 279 | 177 | 133 | 72 | 300 |
Swell 3 Height (m) Direction Period (s) | E 10 | SSE 9 | — | E 11 | — | — | SSW 10 | — | — | — | — | — | — | — | SW 12 | SW 15 | SSW 19 | E 10 | — | — | E 10 |
| kJ | 56 | 8 | — | 37 | — | — | 78 | — | — | — | — | — | — | — | 224 | 57 | 329 | 208 | — | — | 50 |
Wind waves Height (m) Direction Period (s) | W 4 | — | — | — | ESE 5 | ESE 6 | ESE 7 | ESE 7 | ESE 8 | ESE 9 | ESE 10 | — | — | WSW 6 | — | — | — | — | SW 15 | SSW 9 | SSE 9 |
| kJ | 7 | — | — | — | 61 | 249 | 389 | 880 | 1029 | 1283 | 2620 | — | — | 176 | — | — | — | — | 5588 | 1556 | 977 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 0 | 462 | 10 | 39 | 1223 | 57 | 57 | 57 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 118 | 373 | 0 |
Best forecast wave conditions in Garden Route | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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Information about the Robberg Surf forecast
The above surf forecast table for Robberg provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Robberg can be found by selecting the local surf guide option on the grey menu. Our Robberg 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 (Robberg) 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 Robberg 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.
Robberg is 6 km (4 miles) from the city of Plettenberg Bay. If you plan a holiday in Garden Route, look for hotels and other accommodation in Plettenberg Bay. Plettenberg Bay has rooms for a wide range of budgets as well as car hire and transport links.
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