Surf Forecasts:
Bonza Bay surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 13 Sep, 8PM (local time) - 10ft (3.0m), 9s period, E swell with cross-shore winds.
- Most powerful swell: Monday 14 Sep, 8PM (local time) - 10ft (3.0m), 11s period, E swell with 1,962 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 8PM (local time) - 10ft (3.0m), 9s 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 Sunday (Sep 13) at 8PM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 2.5m and 9s. Another secondary swell of 0.9m and 15s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Bonza Bay in the next 16 days are 3.0m 11s and forecast to arrive on Monday (Sep 14) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Monday (Sep 14) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 13th Sep) | 10ft (3.0m) 9s |
| Best Surf | 8PM (Sun 13th Sep) | 10ft (3.0m) 9s |
| Most Powerful | 8PM (Mon 14th Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Bonza Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let's take a look at what Bonza Bay has lined up for us.
Honestly, it's a rough start. Saturday and Sunday are just blown out with messy cross-shore winds and lumpy conditions. The water is sitting at a very unusual 61°, which is much colder than normal for the season, so you'll need a thick suit. The swell energy is weak on Saturday, then jumps to a massive, powerful reading on Sunday, but the onshore wind ruins it. Not a good beginning.
The one true standout in this whole 16-day window is Monday the 14th. Monday morning is the only session that gets a real nod. We have a solid 12ft east swell with a moderate 10-second period, hitting with very strong energy. The wind is a light cross-shore breeze, which should keep things reasonable. That's a lot of water though – it will be a handful and strictly for experienced folks. The afternoon drops to 8ft with a lighter wind, which is a good backup, but the morning is your best bet.
After that, the quality drops right off. Tuesday through the end of the week is a mix of messy cross-shore winds and marginal conditions. There’s a glimpse of clean cross-off wind on Friday the 25th, with an 8ft east swell, but that’s two weeks out and comes with a strong breeze. It's promising, but far from certain.
That long-period groundswell that shows up around the 20th (15-second period) is better suited to a point or reef break, so Bonza Bay won't hold it well.
In short: if you’re an experienced surfer, circle Monday the 14th. Everything else is a battle against the wind and size.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Mon night. Warm (max 22°C on Mon morning, min 19°C on Sat morning). Winds decreasing (fresh winds from the E on Sun morning, light winds from the SSW by Mon night). | Days 4-6 Weather SummaryHeavy rain (total 59mm), heaviest during Wed night. Warm (max 21°C on Tue morning, min 15°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the SE by Wed night). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | SE 8 | E 9 | SSW 18 | E 8 | ESE 9 | E 9 | E 10 | E 10 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 143 | 235 | 565 | 1029 | 1236 | 1210 | 1936 | 1917 | 1636 | 810 | 674 | 450 | 377 | 284 | 244 | 1343 | 1121 | 907 | 455 | 429 | 290 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | glassy | cross | cross-on | on | on | on | on | on | cross-on | on |
High Tide | 4:28PM2.13m | 4:39AM1.98m | 4:56PM2.08m | 5:07AM1.92m | 5:24PM1.99m | 5:33AM1.83m | 5:49PM1.86m | 5:59AM1.71m | 6:14PM1.72m | 6:26AM1.58m | 6:39PM1.57m | 6:57AM1.43m | 7:08PM1.41m | ||||||||
Low Tide | 10:11AM0.24m | 10:34PM0.30m | 10:39AM0.27m | 11:02PM0.35m | 11:07AM0.33m | 11:28PM0.43m | 11:34AM0.44m | 11:56PM0.53m | 12:01PM0.57m | 00:24AM0.66m | 12:29PM0.73m | 00:55AM0.79m | 1:01PM0.89m | 1:39AM0.93m | |||||||
 |  |  | |  |  | | |  | | |  | | |  |  | | |  | | | |
 | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — |
 | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — |
mm | 1 | — | 3 | 3 | 1 | — | — | — | 9 | — | — | — | — | 1 | 42 | 6 | 2 | 8 | 12 | 12 | 7 |
Temp °C | 19 | 21 | 20 | 19 | 20 | 20 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 18 | 17 | 16 | 16 | 16 | 15 | 15 | 18 |
Feels °C | 19 | 20 | 17 | 16 | 18 | 18 | 20 | 19 | 20 | 20 | 19 | 19 | 19 | 15 | 15 | 13 | 12 | 12 | 11 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SSE 7 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | E 10 | E 10 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SSE 9 | SSE 8 | SE 9 | SE 9 |
| kJ | 143 | 93 | 565 | 688 | 487 | 297 | 1374 | 1917 | 1636 | 810 | 674 | 450 | 377 | 284 | 244 | 198 | 161 | 907 | 455 | 429 | 290 |
Swell 2 Height (m) Direction Period (s) | E 9 | S 11 | S 10 | S 9 | S 9 | S 10 | SSW 13 | SSW 13 | S 12 | S 11 | SSW 11 | SSW 10 | SSW 11 | SSW 10 | SSW 8 | SSW 13 | SSW 13 | E 10 | E 10 | SSW 12 | SSW 14 |
| kJ | 83 | 85 | 52 | 27 | 15 | 2 | 187 | 131 | 72 | 62 | 66 | 123 | 247 | 63 | 147 | 98 | 129 | 100 | 71 | 125 | 236 |
Swell 3 Height (m) Direction Period (s) | S 11 | SSW 16 | SE 7 | — | — | — | — | — | — | SSW 4 | S 17 | SSW 18 | SSW 16 | SSW 15 | ESE 6 | — | — | SSW 12 | SSW 11 | E 10 | E 10 |
| kJ | 63 | 48 | 27 | — | — | — | — | — | — | 3 | 6 | 32 | 26 | 85 | 70 | — | — | 75 | 70 | 50 | 46 |
Wind waves Height (m) Direction Period (s) | ENE 9 | E 9 | E 7 | E 8 | ESE 9 | E 9 | E 10 | ENE 10 | — | — | — | — | SE 3 | ESE 5 | ESE 6 | SSE 9 | SSE 9 | — | SSW 7 | — | — |
| kJ | 193 | 235 | 418 | 1029 | 1236 | 1210 | 1936 | 1196 | — | — | — | — | 2 | 37 | 89 | 1343 | 1121 | — | 77 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 273 | 435 | 455 | 455 | 455 | 439 | 237 | 54 | 5 | 5 | 237 | 0 | 23 | 129 | 129 | 52 | 492 | 349 | 404 | 456 | 468 |
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