Surf Forecasts:
Bonza Bay surf forecast from 10 Sep 2026:
- Best quality surf: Monday 14 Sep, 2AM (local time) - 10ft (3.0m), 9s period, E swell with cross-shore winds.
- Most powerful swell: Monday 14 Sep, 11AM (local time) - 11ft (3.5m), 10s period, E swell with 1,997 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 2AM (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 Monday (Sep 14) at 2AM. 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 14s 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 3.5m 10s and forecast to arrive on Monday (Sep 14) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 10s period and expected on Monday (Sep 14) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 14th Sep) | 10ft (3.0m) 9s |
| Best Surf | 2AM (Mon 14th Sep) | 10ft (3.0m) 9s |
| Most Powerful | 11AM (Mon 14th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Bonza Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s happening at Bonza Bay.
Water temp is running way colder than usual for this time of year, clocking in at 61°F – that’s a big 7°F below normal, so you’ll need a thick suit.
To be honest, the next week or so is pretty grim. There’s a long stretch of weak, messy surf with lumpy cross-shore winds and chop. A few days have some size, like Saturday the 14th of September with a 10-foot east swell, but that’s way too big for this spot and the wind is messy. Not worth it.
The one real standout is the morning of Tuesday the 15th of September. We’re looking at glassy conditions, a light south-easterly breeze, and a clean 6-foot east swell with a 10-second period. The wave energy is moderate (722), and the wind is dead calm – that’s about as clean as it gets. The swell direction is east, which works well for this spot. This is the session to aim for. It can be a little inconsistent here, but when it’s glassy like that, Bonza Bay can really deliver. Expect a few people out, but nothing too crazy.
After that, the wind gets messy again. The morning of Saturday the 19th of September has another glassy window with a 5-foot east swell, but the period is short – only 6 seconds – so it’ll be weaker and less powerful. Still, a clean wave is better than a messy one.
The rest of the second week is mostly cross-shore winds and lumpy chop. Some bigger swells roll in later in September (7 to 8 feet) but with fresh onshore winds, it’ll be a washing machine. More of a kite-surfing day than a paddle session.
So, mark your calendar for Tuesday the 15th of September, first light. That’s the one to chase.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Thu night. Warm (max 21°C on Sat morning, min 18°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Mon afternoon. Warm (max 22°C on Mon night, min 17°C on Mon night). Winds increasing (calm on Tue morning, fresh winds from the SSW by Wed afternoon). | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 16 | SSW 14 | SSW 13 | ESE 7 | E 6 | E 7 | SSW 18 | ESE 8 | ESE 9 | E 9 | E 10 | E 10 | E 11 | E 10 | E 10 | E 10 | E 10 | SSW 7 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 273 | 131 | 96 | 183 | 128 | 193 | 565 | 672 | 975 | 1476 | 1997 | 1792 | 1069 | 661 | 578 | 379 | 230 | 389 | 398 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-off | cross | on | cross-on | cross-off | cross | cross | on |
High Tide | 3:40AM1.98m | 3:57PM2.13m | 4:11AM2.00m | 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 | |||||||
Low Tide | 9:36PM0.32m | 9:42AM0.27m | 10:06PM0.29m | 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 | ||||||
 |  | |  | |  |  |  | | |  |  | | |  |  | | | | |
 | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — |
 | 5:55 | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — |
mm | 1 | — | — | 2 | — | — | 2 | 2 | — | 3 | 1 | 3 | 4 | — | — | — | — | 1 | 1 |
Temp °C | 19 | 19 | 19 | 18 | 21 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 22 | 21 | 21 | 20 | 18 | 17 | 17 |
Feels °C | 18 | 19 | 19 | 17 | 19 | 17 | 18 | 19 | 18 | 19 | 19 | 19 | 24 | 20 | 20 | 19 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | SSW 12 | SSE 7 | SSE 7 | SSW 18 | SSW 16 | SSW 15 | ESE 9 | E 10 | E 10 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
| kJ | 138 | 115 | 86 | 82 | 104 | 70 | 565 | 575 | 481 | 1228 | 1446 | 1792 | 1069 | 661 | 578 | 379 | 230 | 158 | 161 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 14 | SSW 13 | SE 14 | S 11 | S 11 | S 10 | S 11 | S 11 | SSW 14 | SSW 13 | SSW 13 | S 12 | S 11 | SSW 11 | SSW 10 | SSW 16 | SSW 15 | SSW 14 |
| kJ | 273 | 131 | 96 | 8 | 63 | 85 | 74 | 3 | 9 | 297 | 141 | 131 | 72 | 62 | 65 | 59 | 103 | 131 | 160 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | S 5 | SE 14 | SW 16 | SSW 16 | SE 7 | — | — | — | — | SW 13 | — | SSW 4 | S 16 | SSW 18 | SSW 14 | — | — |
| kJ | 5 | 5 | 13 | 8 | 10 | 47 | 27 | — | — | — | — | 249 | — | 2 | 5 | 64 | 18 | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | S 5 | — | ESE 7 | E 6 | E 7 | E 7 | ESE 8 | ESE 9 | E 9 | E 10 | ENE 10 | — | — | — | — | SW 6 | SSW 7 | S 8 |
| kJ | 22 | 11 | — | 183 | 128 | 193 | 392 | 672 | 975 | 1476 | 1997 | 1931 | — | — | — | — | 148 | 389 | 398 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 23 | 23 | 129 | 273 | 249 | 476 | 455 | 455 | 455 | 439 | 239 | 0 | 18 | 19 | 124 | 0 | 440 | 492 | 52 |
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.
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