
Surf Forecasts:
Robberg surf forecast from 9 Sep 2026:
- Best quality surf: Saturday 12 Sep, 11PM (local time) - 8ft (2.4m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 8PM (local time) - 7ft (2.2m), 17s period, SSW swell with 2,929 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 5AM (local time) - 2.5ft (0.8m), 11s 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 Wednesday (Sep 09) at 5AM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.8m and 9s. 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 2.2m 17s and forecast to arrive on Saturday (Sep 12) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 11s period and expected on Tuesday (Sep 15) at 11PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 9th Sep) | 2.5ft (0.8m) 11s |
| Best Surf | 11PM (Sat 12th Sep) | 8ft (2.4m) 16s |
| Most Powerful | 8PM (Sat 12th Sep) | 7ft (2.2m) 17s |
Table - best surf conditions forecast for Robberg over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about the stretch ahead. It’s a bit of a slow burner, but there are some serious windows of promise if you're willing to be patient. We’ve got a few days of nothing much to start, so don’t rush out there. The ocean needs a minute to wake up.
The first real chance doesn't come until Thursday the 10th. It’s not perfect, but there’s a push of SW swell at 4ft with a 16-second period, so there’s some proper energy in the water. The breeze is cross-onshore though, which will put a bit of a crumble on it. Then it builds into the afternoon, jumping to 7ft. It's going to be a lumpy one, but the size is there.
Friday the 11th is where things start to get proper. The morning is the pick of the early run. We’ve got glassy conditions with a light NNW air and a clean 6ft of SW swell at 13 seconds. The energy is solid and those conditions are what we live for. This is a good one for the experienced crew. Robberg (Plettenberg Bay) will be handling this swell well. The afternoon goes a bit cross-shore, but that morning session is the one.
The weekend gets messy. Saturday the 12th is a write-off in the morning – poor surf and a cross-onshore breeze. The afternoon cleans up a little with a cross-offshore wind and a better 6ft swell, but it’s still not great. Sunday the 13th sees a bigger 7ft swell on the morning, but it's onshore and lumpy. Then it drops and goes cross-shore for the afternoon. A weekend to do other things, I reckon.
Monday the 14th brings a change in direction. The swell swings around to the ESE at around 6-7ft, but the period drops right off to 9 seconds. It's a bit of a junky, short-period swell that won't have much push. We’ll take a miss on that.
Now, Tuesday the 15th is a real standout. The morning is glassy again, with a clean 4-5ft of E swell at 11 seconds. The energy is moderate, but the conditions will be silky. That’s a lovely, clean, user-friendly morning session. But the real gem is the afternoon. The forecast shows a jump in period to a massive 21 seconds, coming from the SSW at 3ft. That is some long-period groundswell, and for a reef setup like Robberg, that's proper. It’s going to be clean with a cross-offshore breeze. This is a session for the connoisseur.
Then things take a turn. Wednesday the 16th is a full-blown storm. We’ve got 8ft of SW swell but with a 30 km/h cross-onshore wind and rain. That’s a messy, blown-out mess. Not one for the paddle board. If you’ve got a kite, that might look more fun. It’s a hard pass for surfing.
The rest of that week into the 20th is just a mix of average, onshore or cross-shore conditions with generally mediocre surf. Nothing to get excited about.
But keep your eyes on the horizon, because the big one is brewing for Monday the 21st. The models are showing a serious pulse of SSW groundswell pushing in at a solid 15ft with a 16-second period. This is big, powerful surf with strong to very strong energy. The wind is lighter, a gentle cross-onshore, which is about as good as you can ask for with that size. This is a day for experts only, and it’s a long-range call, so it’s promising but we’ll need to see how it firms up. Tuesday the 22nd will still have size, but it’ll be backing off.
So, to wrap it up: the best windows are Friday morning the 11th for a clean, fun session, and Tuesday afternoon the 15th for that super-long-period groundswell at Robberg. The big swell on Monday the 21st is the one to watch for the heavy crew, but it’s a week and a half away, so let's not count our chickens just yet.
Stay stoked.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Wed morning, min 16°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 16°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 11 | SW 14 | SW 13 | SW 13 | SW 16 | SW 15 | SW 13 | SW 13 | SW 12 | SW 12 | SSW 10 | SW 14 | SSW 16 | SW 14 | SW 14 | ESE 9 | ESE 9 | ESE 9 | ESE 10 |
Wave Graph | |||||||||||||||||||
174 | 203 | 295 | 282 | 757 | 1933 | 1280 | 1109 | 1048 | 542 | 157 | 1368 | 2750 | 2004 | 1311 | 865 | 736 | 695 | 754 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross | cross-off | cross-on | cross-on | cross | glassy | cross | glassy | cross-on | cross-off | cross-on | on | cross | off | cross | cross | cross-on |
High Tide | 2:23AM1.59m | 2:45PM1.74m | 3:00AM1.69m | 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 | |||||||
Low Tide | 8:22PM0.24m | 8:34AM0.13m | 9:00PM0.11m | 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 | ||||||
— | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | |
6:12 | — | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 11 |
Temp °C | 23 | 31 | 30 | 19 | 19 | 19 | 17 | 17 | 17 | 17 | 19 | 19 | 17 | 20 | 19 | 20 | 20 | 22 | 19 |
Feels °C | 23 | 30 | 29 | 18 | 20 | 18 | 18 | 18 | 16 | 18 | 18 | 19 | 18 | 21 | 19 | 21 | 20 | 24 | 19 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 10 | SW 13 | SW 13 | SW 12 | SW 15 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 14 | SSW 16 | SW 14 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 |
133 | 88 | 295 | 282 | 494 | 1933 | 1280 | 1109 | 1048 | 542 | 314 | 1368 | 2750 | 2004 | 616 | 585 | 736 | 695 | 754 | |
Swell 2 Height (m) Direction Period (s) | SW 11 | SW 11 | E 9 | E 10 | SW 16 | E 10 | E 10 | E 11 | SSE 6 | SSW 8 | SE 6 | ESE 6 | — | ESE 8 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 |
174 | 116 | 81 | 65 | 757 | 52 | 53 | 37 | 15 | 120 | 80 | 71 | — | 414 | 1311 | 780 | 466 | 335 | 228 | |
Swell 3 Height (m) Direction Period (s) | SSE 9 | SW 14 | SSE 10 | SSE 9 | E 10 | SSE 9 | — | E 11 | E 11 | SE 7 | SSW 10 | SSW 19 | — | — | — | S 7 | — | — | SSW 6 |
32 | 203 | 31 | 16 | 51 | 8 | — | 10 | 21 | 28 | 157 | 383 | — | — | — | 24 | — | — | 47 | |
Wind waves Height (m) Direction Period (s) | — | — | — | W 4 | SW 4 | — | S 5 | — | — | ESE 6 | — | ESE 6 | ESE 6 | ESE 8 | — | ESE 9 | — | WSW 3 | — |
— | — | — | 14 | 10 | — | 10 | — | — | 60 | — | 96 | 153 | 599 | — | 865 | — | 7 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 57 | 0 | 1 | 39 | 1 | 1 | 57 | 0 | 1 | 1 | 1 |
Best forecast wave conditions in Garden Route | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










