Surf Forecasts:
Bonza Bay surf forecast from 23 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 8PM (local time) - 5ft (1.6m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 5PM (local time) - 8ft (2.5m), 17s period, S swell with 4,137 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 8PM (local time) - 5ft (1.5m), 10s period with S swell.
Best Forecast Surf Conditions for Bonza Bay this week:
The surf forecast for Bonza Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 8PM. The primary swell is predicted to be 1.5m and 10s period with a secondary swell of 0.2m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bonza Bay in the next 16 days are 2.5m 17s and forecast to arrive on Wednesday (Aug 26) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Thursday (Aug 27) at 11PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 23rd Aug) | 5ft (1.5m) 10s |
| Best Surf | 8PM (Tue 25th Aug) | 5ft (1.6m) 16s |
| Most Powerful | 5PM (Wed 26th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Bonza Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what we've got coming down the line for Bonza Bay.
First up, the water temp is sitting at about 66°, which is a bit cooler than usual for this time of year, down by about 2°. Not a huge shock, but you'll be wanting a spring suit if you're out there for a session.
Honestly, the next few days are a bit of a write-off. We are looking at a slow start. It's not until Tuesday morning, the 25th of August, that things start to show any real promise. That morning, we’ve got a solid 4ft SSW swell with a long 13-second period, pushing a strong wave energy of 1018. The wind is light and cross-shore, which will keep it fairly clean. It’s a bit of a standout for the early part of the week, and the long period groundswell should wrap nicely into the river mouth here at Bonza Bay. The crowd potential is "sometimes", so you might get a few out, but it's worth a look.
The real standout, the one you've been waiting for, is the Saturday afternoon of the 5th of September. The models are showing a monster 10ft SSW swell, with a long 16-second period and a massive combined energy of 4081. The wind is a gentle cross-onshore, which is a bit of a bummer, but it's still rideable. That said, at 10ft, this is comfortably in the expert-only zone. It's going to be a big, powerful, and intimidating wall of water, not for the faint-hearted. This is a call for the experienced crew only.
In between, there are a few other sessions to keep an eye on. The Tuesday afternoon of the 25th has a decent 5ft, 16-second groundswell, but the cross-shore wind picks up a bit, making it a little lumpy. The Friday morning of the 4th of September also looks promising with a 7ft SW swell, clean offshore wind, and moderate wave energy of 1238, but it's not quite as clean as the Tuesday morning.
A quick heads-up: the period from the 26th of August through to the 3rd of September is mostly a write-off due to strong winds and poor conditions. The waves are there, but the wind just ruins the face. The 26th afternoon has an 8ft swell but with a 25 km/h cross-onshore wind. It's a messy, choppy mess. The 27th has strong, 45 km/h winds, making it unsurfable.
To sum it up: the first real window is Tuesday morning, the 25th of August. It's a solid, clean session. But the big one, the one to circle on the calendar, is the 5th of September. It's a long way out, so don't bet the house on it, but if it comes together, it'll be a day for the books.
Rusty out.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed morning. Very mild (max 19°C on Sun afternoon, min 15°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Wed afternoon. Warm (max 34°C on Sat morning, min 17°C on Wed afternoon). Winds decreasing (strong winds from the ENE on Thu afternoon, calm by Fri morning). | |||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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) | S 10 | S 10 | S 8 | S 11 | SSW 15 | SSW 13 | SSW 16 | SSW 15 | S 17 | S 17 | S 14 | S 12 | S 12 | E 9 | S 12 | S 12 | SSE 11 | E 10 | SSE 11 | E 10 |
Wave Graph | ||||||||||||||||||||
496 | 326 | 112 | 251 | 775 | 530 | 1271 | 773 | 2117 | 4137 | 1614 | 513 | 759 | 685 | 472 | 456 | 446 | 539 | 126 | 818 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-on | on | glassy | cross | cross | cross-off | cross-on | cross-on | cross | cross | cross | cross-off | cross-on | cross | cross-off | cross-off | cross | cross |
High Tide | 1:43AM1.50m | 2:17PM1.58m | 2:20AM1.63m | 2:46PM1.72m | 2:50AM1.74m | 3:12PM1.84m | 3:18AM1.85m | 3:38PM1.95m | 3:46AM1.93m | 4:04PM2.03m | 4:14AM1.98m | 4:31PM2.09m | 4:43AM1.99m | |||||||
Low Tide | 7:39PM0.95m | 7:59AM0.79m | 8:18PM0.81m | 8:30AM0.65m | 8:48PM0.68m | 8:58AM0.53m | 9:16PM0.55m | 9:25AM0.43m | 9:44PM0.45m | 9:52AM0.35m | 10:11PM0.37m | 10:18AM0.30m | 10:39PM0.34m | |||||||
— | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | |
5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | |
mm | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 17 | 18 | 19 | 17 | 17 | 18 | 18 | 17 | 17 | 18 | 19 | 22 | 21 | 25 | 25 | 25 | 34 | 33 | 27 |
Feels °C | 15 | 17 | 16 | 17 | 17 | 16 | 16 | 17 | 15 | 14 | 13 | 12 | 15 | 20 | 23 | 23 | 22 | 30 | 29 | 24 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 8 | S 11 | SSW 15 | SSW 13 | SSW 16 | SSW 15 | S 17 | S 17 | S 14 | S 12 | S 12 | E 9 | E 9 | E 9 | E 9 | E 10 | SSE 11 | E 10 |
496 | 326 | 112 | 251 | 775 | 530 | 1271 | 773 | 2117 | 4137 | 1614 | 513 | 759 | 685 | 445 | 327 | 325 | 539 | 126 | 818 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 9 | SSW 14 | SSE 12 | SSE 11 | SSW 17 | E 9 | S 18 | E 10 | — | — | S 16 | — | S 12 | S 12 | S 12 | SSE 11 | SSE 12 | SW 14 | S 11 |
5 | 6 | 62 | 14 | 12 | 482 | 6 | 105 | 2 | — | — | 301 | — | 649 | 472 | 456 | 446 | 224 | 8 | 59 | |
Swell 3 Height (m) Direction Period (s) | — | SE 12 | SW 11 | E 10 | E 10 | E 9 | SE 12 | E 9 | — | — | — | SSW 13 | — | — | SSE 15 | SSE 15 | S 15 | SW 14 | — | SW 13 |
— | 6 | 30 | 7 | 7 | 6 | 6 | 2 | — | — | — | 189 | — | — | 130 | 169 | 4 | 7 | — | 6 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | ESE 5 | E 6 | ENE 8 | ENE 8 | — | — | — | ENE 9 | ENE 10 | ENE 10 | — |
— | — | — | — | — | — | — | — | — | 54 | 190 | 588 | 962 | — | — | — | 913 | 1346 | 710 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 52 | 0 | 52 | 107 | 0 | 4 | 23 | 0 | 129 | 404 | 435 | 249 | 249 | 0 | 99 | 19 | 0 | 19 | 239 | 24 |
Best forecast wave conditions in Eastern Cape - Wild Coast | ||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||
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Information about the Bonza Bay Surf forecast
The above surf forecast table for Bonza Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bonza Bay can be found by selecting the local surf guide option on the grey menu. Our Bonza Bay 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 (Bonza Bay) 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 Bonza Bay 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.
Bonza Bay is 7 km (4 miles) from the city of East London. If you plan a holiday in Eastern Cape - Wild Coast, look for hotels and other accommodation in East London. East London has rooms for a wide range of budgets as well as car hire and transport links.











