Surf Forecasts:
Bonza Bay surf forecast from 15 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 11PM (local time) - 5ft (1.6m), 10s period, E swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 8AM (local time) - 8ft (2.5m), 9s period, E swell with 951 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 11PM (local time) - 5ft (1.6m), 10s period with E 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 Tuesday (Sep 15) at 11PM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.5m and 3s is also forecast. 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 9s and forecast to arrive on Saturday (Sep 19) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Sep 20) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 15th Sep) | 5ft (1.6m) 10s |
| Best Surf | 11PM (Tue 15th Sep) | 5ft (1.6m) 10s |
| Most Powerful | 8AM (Sat 19th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Bonza Bay over the next 16 days.
The Lowdown
Alright, Rusty here again, giving it to you straight in feet. Bonza Bay’s looking at a tough 16-day stretch. Water’s about 64°, a touch cooler than usual for this time of year, so you’ll want the extra neoprene.
The first real chance to paddle out doesn’t hit until Saturday the 19th of September. Morning session sees a 8ft swell from the east with a 9-second period and moderate energy (1058). It’s marginal though – the cross-shore wind leaves a lumpy surface. Nothing to get excited about.
We’ve got a few small, sloppy days after that. Then, the standout shows up on Sunday the 27th of September. Morning brings a clean 6ft swell from the SSW, with a very long 14-second period and strong energy (1530). That’s a proper groundswell, and the river mouth or points here could handle it nicely. The wind is light cross-on, which is clean enough for good shape. The afternoon holds similar promise at 5ft and the same long period. This is your session.
The first week is mostly junk – poor conditions and marginal wind. The 26th also has a decent clean look with a 6ft SSW swell (1024). But honestly, lock in the 27th of September. That’s the one.
Rusty.
Short Range ForecastHeavy rain (total 72mm), heaviest during Thu afternoon. Warm (max 22°C on Tue afternoon, min 12°C on Wed night). Winds decreasing (fresh winds from the SW on Wed morning, calm by Wed night). | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Fri afternoon. Warm (max 20°C on Sun morning, min 15°C on Fri afternoon). Winds decreasing (fresh winds from the ENE on Fri night, calm by Sat night). | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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) | E 10 | E 10 | E 10 | SSW 7 | E 10 | SSE 8 | SE 7 | ESE 8 | ESE 8 | ESE 8 | E 9 | E 9 | E 9 | E 9 | E 9 | SSW 15 | ESE 9 | E 8 | E 8 | ESE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 578 | 514 | 333 | 302 | 264 | 485 | 569 | 649 | 785 | 867 | 724 | 901 | 800 | 731 | 529 | 468 | 258 | 169 | 217 | 372 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | glassy | cross | cross | cross-off | cross-on | cross-on | cross-off |
High Tide | 5:49PM1.86m | 5:59AM1.71m | 6:14PM1.72m | 6:26AM1.58m | 6:39PM1.57m | 6:57AM1.43m | 7:08PM1.41m | 7:52AM1.28m | 8:16PM1.26m | 12:06PM1.26m | 00:25AM1.29m | 1:16PM1.42m | 1:22AM1.43m | |||||||
Low Tide | 11:56PM0.53m | 12:01PM0.57m | 00:24AM0.66m | 12:29PM0.73m | 00:55AM0.79m | 1:01PM0.89m | 1:39AM0.93m | 1:59PM1.06m | 4:01AM1.04m | 6:26PM1.07m | 6:45AM0.93m | 7:25PM0.91m | ||||||||
 |  |  |  |  |  | | |  | |  |  | | | | | | | |  | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — | 6:00 | — | — |
 | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — |
mm | — | — | 1 | 5 | 14 | 12 | 17 | 16 | 7 | 3 | 2 | — | — | — | — | — | 2 | 4 | 5 | 1 |
Temp °C | 22 | 21 | 18 | 16 | 16 | 14 | 14 | 16 | 16 | 16 | 16 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 19 | 19 |
Feels °C | 21 | 19 | 13 | 11 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 17 | 17 | 19 | 19 | 18 | 21 | 19 | 17 | 19 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | S 7 | SSE 8 | E 10 | SSW 12 | SSW 11 | SSW 12 | SSW 11 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | E 8 | E 8 | ESE 8 |
| kJ | 578 | 514 | 333 | 244 | 220 | 344 | 161 | 147 | 173 | 145 | 95 | 901 | 800 | 731 | 529 | 343 | 258 | 169 | 217 | 372 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SSW 10 | SSW 11 | SSW 11 | E 10 | E 10 | SSW 13 | — | — | — | SSW 15 | SSW 14 | SSW 13 | SSW 11 | SSW 16 | SSW 15 | SSW 13 | SSW 13 | S 6 | SW 12 |
| kJ | 40 | 39 | 148 | 70 | 264 | 206 | 225 | — | — | — | 71 | 145 | 93 | 73 | 214 | 468 | 246 | 109 | 81 | 36 |
Swell 3 Height (m) Direction Period (s) | SW 5 | SSW 5 | — | SW 15 | SSW 14 | SSW 14 | — | — | — | — | — | SW 18 | — | — | SSW 11 | — | SSE 6 | — | SSW 12 | S 16 |
| kJ | 1 | 3 | — | 56 | 110 | 147 | — | — | — | — | — | 12 | — | — | 46 | — | 34 | — | 60 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | SSW 7 | SSW 7 | — | SSE 8 | SE 7 | ESE 8 | ESE 8 | ESE 8 | E 9 | — | — | — | WSW 3 | SSW 4 | S 5 | SSE 5 | SE 7 | E 8 |
| kJ | — | — | 192 | 302 | — | 485 | 569 | 649 | 785 | 867 | 724 | — | — | — | 5 | 11 | 25 | 33 | 45 | 329 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 302 | 0 | 435 | 492 | 99 | 404 | 492 | 492 | 537 | 611 | 34 | 237 | 151 | 0 | 52 | 52 | 0 | 52 | 129 | 0 |
Best forecast wave conditions in Eastern Cape - Wild Coast | ||||||||||||||||||||
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)
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 Bonza Bay 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 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.
Nearest