Surf Forecasts:
Bonza Bay surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11PM (local time) - 7ft (2.1m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 5PM (local time) - 8ft (2.5m), 15s period, SSW swell with 2,628 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 11PM (local time) - 7ft (2.1m), 14s period with SSW 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 Thursday (Aug 20) at 11PM. The primary swell is predicted to be 2.1m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Bonza Bay in the next 16 days are 2.5m 15s and forecast to arrive on Thursday (Aug 20) 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 1.9m 7s period and expected on Wednesday (Aug 26) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 20th Aug) | 7ft (2.1m) 14s |
| Best Surf | 11PM (Thu 20th Aug) | 7ft (2.1m) 14s |
| Most Powerful | 5PM (Thu 20th Aug) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Bonza Bay over the next 16 days.
The Lowdown
G'day, Rusty here, and I've got the lowdown on what's shaking in our local waters. To be straight with you, the next 16 days are a bit of a mixed bag. We're looking at a long stretch of marginal to poor conditions, with a few flickers of hope way out in the distance. Let's get into it.
The water temp at Bonza Bay is sitting at 64°, which is about 3° cooler than usual for this time of year. That's a bit nippier than normal, so you might want to grab an extra millimetre of rubber.
We kick off on Wednesday the 19th of August, but it's nothing to write home about. The swell is a weak 5ft from the SSW with a 13-second period, and the combined energy is only 728. That's weak, and the cross-shore wind from the NE at 9 mph is putting a slight chop on it. It's a no-go from me.
The rest of the week through to Sunday the 23rd is pretty grim. We see a spike in energy on Thursday the 20th afternoon with a 8ft SSW swell pushing the combined energy to 2085, but the wind is a messy cross-onshore from the S at 9 mph. That's a lot of power but blown out. For the experienced crew, that could be a handful, but it's not clean.
The following week, from Monday the 24th through to Sunday the 30th, is a real desert. Winds are all over the shop, mostly cross or cross-onshore, and the swell is inconsistent and weak. Expect a lot of choppy, lumpy conditions. It's a frustrating stretch.
Now, here’s where it gets a little interesting. The first real standout shows up on Friday morning, the 28th of August. We've got a clean 3ft swell from the S, with a 11-second period. The combined energy is a low 244, so it's not a big day, but the wind is offshore from the NW at 9 mph. That's the key here – clean, glassy conditions on a small, rideable swell. The south swell direction is a bit off the optimum for Bonza Bay, which is a river break that loves S swell, but it's still in the ballpark. It's a small window, but that Friday morning session is the best on offer in the first week.
Then, we have a more promising standout right at the end of the forecast. On Wednesday afternoon, the 2nd of September, the conditions look magic. The swell is 3ft from the E, with a 9-second period. The combined energy is a weak 232, but the wind is glassy from the ESE at 3 mph. That's a long way out, so treat it as a promising but less certain call, but if it holds, that afternoon could be a real treat with clean, gutless little waves.
Given the long stretch of poor conditions, Bonza Bay is a fairly consistent spot, so this blank run is a bit of a downer. But with the small windows of clean, offshore or glassy wind, you've got a couple of chances.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Wed afternoon, min 15°C on Fri morning). Winds increasing (calm on Fri morning, strong winds from the WSW by Sat morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Sat afternoon, min 15°C on Sun night). Winds decreasing (strong winds from the SW on Sat afternoon, calm by Sun night). | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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) | SSW 13 | SSW 13 | SSW 8 | SSW 15 | SSW 13 | SSW 12 | S 12 | S 12 | S 14 | S 14 | SW 8 | SSW 10 | SSW 11 | S 11 | S 14 | S 17 | SSW 16 | SSW 14 | SSW 17 | SSW 15 |
Wave Graph | ||||||||||||||||||||
563 | 367 | 285 | 2628 | 1192 | 589 | 480 | 341 | 593 | 467 | 619 | 432 | 452 | 403 | 447 | 589 | 849 | 721 | 1749 | 805 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross-on | glassy | cross-on | cross-on | cross | cross-off | cross | cross-off | cross | cross-on | cross-off | cross-on | cross-on | glassy | on | cross-on | cross |
High Tide | 7:38PM1.60m | 7:47AM1.43m | 8:23PM1.45m | 9:02AM1.30m | 10:17PM1.34m | 12:22PM1.30m | 00:43AM1.39m | 1:40PM1.43m | 1:43AM1.50m | 2:17PM1.58m | 2:20AM1.63m | 2:46PM1.72m | 2:50AM1.74m | |||||||
Low Tide | 1:49AM0.88m | 1:53PM0.90m | 2:50AM1.00m | 3:07PM1.05m | 5:23AM1.04m | 6:17PM1.07m | 7:15AM0.93m | 7:39PM0.95m | 7:59AM0.79m | 8:18PM0.81m | 8:30AM0.65m | 8:48PM0.68m | ||||||||
— | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | |
5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 17 | 18 | 17 | 16 | 17 | 18 | 18 | 21 | 20 | 16 | 19 | 18 | 17 | 19 | 19 | 17 | 18 | 19 | 18 |
Feels °C | 21 | 13 | 14 | 13 | 15 | 16 | 16 | 15 | 14 | 13 | 11 | 16 | 15 | 17 | 18 | 17 | 17 | 18 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 8 | SSW 15 | SSW 13 | SSW 12 | S 12 | S 12 | S 14 | S 14 | SSW 9 | SSW 10 | SSW 11 | S 11 | S 14 | S 17 | SSW 16 | SSW 14 | SSW 17 | SSW 15 |
563 | 367 | 142 | 2628 | 1192 | 589 | 480 | 341 | 593 | 467 | 288 | 432 | 452 | 403 | 447 | 589 | 849 | 721 | 1749 | 805 | |
Swell 2 Height (m) Direction Period (s) | E 6 | E 8 | SSW 12 | E 8 | E 8 | E 8 | — | E 8 | ENE 7 | E 8 | S 12 | ENE 8 | E 8 | E 9 | E 10 | E 10 | E 10 | SSW 19 | E 9 | E 9 |
35 | 66 | 213 | 21 | 12 | 12 | — | 5 | 67 | 29 | 299 | 6 | 5 | 6 | 7 | 7 | 7 | 577 | 6 | 6 | |
Swell 3 Height (m) Direction Period (s) | E 9 | — | SSW 15 | — | — | — | — | — | — | — | ENE 8 | NE 8 | SW 17 | ENE 9 | NE 7 | SE 12 | SE 12 | E 9 | E 9 | — |
56 | — | 237 | — | — | — | — | — | — | — | 6 | 2 | 11 | 8 | 2 | 5 | 6 | 6 | 6 | — | |
Wind waves Height (m) Direction Period (s) | — | SSW 6 | SSW 8 | — | — | — | E 8 | ENE 5 | SW 4 | SSW 7 | SW 8 | — | — | — | — | — | — | — | — | ENE 3 |
— | 90 | 285 | — | — | — | 12 | 32 | 20 | 395 | 619 | — | — | — | — | — | — | — | — | 8 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 4 | 239 | 52 | 23 | 0 | 187 | 455 | 138 | 455 | 435 | 4 | 0 | 52 | 0 | 4 | 52 | 0 | 124 | 455 | 204 |
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.











