Surf Forecasts:
Bonza Bay surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 13 Sep, 11PM (local time) - 10ft (3.0m), 9s period, E swell with cross-shore winds.
- Most powerful swell: Sunday 20 Sep, 2AM (local time) - 11ft (3.5m), 9s period, E swell with 2,077 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 11PM (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 11PM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 0.9m and 14s. Another secondary swell of 0.2m and 10s 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 9s and forecast to arrive on Sunday (Sep 20) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Monday (Sep 14) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 13th Sep) | 10ft (3.0m) 9s |
| Best Surf | 11PM (Sun 13th Sep) | 10ft (3.0m) 9s |
| Most Powerful | 2AM (Sun 20th Sep) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Bonza Bay over the next 16 days.
The Lowdown
Alright, let’s break this down.
For Bonza Bay, we’re in for a rough stretch. The first real chance to get wet is Monday the 14th, and it’s a big one. We’ve got 3.0m of east swell rolling in, and the wind is light and cross-shore, which is a big plus. Energy is strong, sitting at 2051. This is solid, powerful stuff. But heads up, this is over the 2.5m mark, so it’s only for experienced surfers. The wave period is 10 seconds, which is decent, but with that size, it’s gonna be a handful.
Tuesday the 15th keeps the same swell, around 3.0m, and the wind stays light in the morning. Similar story – still too big for most, but if you’ve got the skills, it could be on. The afternoon eases a bit to 1.7m, but the wind gets a bit more cross-on, so it loses some shine.
Then the quality just drops off. From Wednesday the 17th through the 22nd, we’ve got mostly poor conditions. The wind is onshore or cross-on, and the swell is smaller, but it’s messy. There’s a slight clean-up on Wednesday the 16th afternoon, but it’s small.
Now, the standout is further down the line. Monday the 28th is the big one. We’re looking at 3.5m to 4.5m of east-southeast swell, and the energy readings are massive – 3182 and 4579. This is serious, heavy water. The wind is cross-shore, which will keep it from being too clean, but with that power, it’s going to be a heavy day. This is purely for the experts. It’s a promising forecast, but that far out, you gotta take it with a grain of salt.
There’s a small window on Saturday the 20th afternoon, with 2.3m and a light cross-shore breeze. But it’s marginal.
Otherwise, it’s a waiting game. The water is 17°, which is 3° colder than usual, so it’s a bit chilly.
No real fun for the average surfer until that big push at the end.
Rusty out.
Short Range ForecastLight rain (total 8mm), mostly falling on Sun afternoon. Warm (max 23°C on Mon morning, min 18°C on Sun afternoon). Winds decreasing (strong winds from the E on Sun afternoon, calm by Tue morning). | Days 5-7 Weather SummaryHeavy rain (total 69mm), heaviest during Wed night. Very mild (max 18°C on Fri night, min 13°C on Thu afternoon). Mainly fresh winds. | |||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 9 | E 9 | E 10 | E 10 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | SSE 8 | S 8 | SSE 7 | SE 7 | SE 7 | ESE 8 | ESE 8 | ESE 9 | E 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1769 | 1299 | 1864 | 1838 | 1485 | 810 | 590 | 441 | 386 | 290 | 249 | 395 | 194 | 257 | 255 | 255 | 437 | 713 | 1081 | 2077 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-off | cross | cross-off | on | on | on | on | on | cross-on | cross-on | cross | cross-on | cross |
High Tide | 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 | 7:52AM1.28m | 8:16PM1.26m | |||||||
Low Tide | 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 | 1:59PM1.06m | 4:01AM1.04m | |||||||
 |  |  | |  |  | |  |  | |  |  | | | | | | | | | |
 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — |
 | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — |
mm | 3 | 3 | — | — | — | — | — | — | 2 | 1 | 22 | 9 | 9 | 17 | 9 | 2 | — | — | — | 3 |
Temp °C | 18 | 20 | 23 | 23 | 22 | 22 | 21 | 20 | 19 | 16 | 16 | 15 | 13 | 14 | 15 | 17 | 18 | 18 | 18 | 18 |
Feels °C | 13 | 17 | 21 | 20 | 23 | 22 | 20 | 20 | 15 | 10 | 13 | 11 | 9 | 10 | 11 | 12 | 14 | 13 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 13 | E 10 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | S 8 | E 10 | E 10 | E 10 | ESE 7 | SSW 13 | SSW 12 | E 9 |
| kJ | 487 | 297 | 187 | 1838 | 1485 | 810 | 590 | 441 | 386 | 290 | 249 | 202 | 193 | 165 | 123 | 94 | 286 | 96 | 83 | 1691 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 10 | — | SSW 13 | S 12 | S 11 | SSW 11 | SSW 10 | SSW 11 | SSW 11 | SE 5 | SSW 13 | E 10 | SSW 12 | SSW 11 | SSW 11 | SSW 14 | — | — | SSW 12 |
| kJ | 9 | 8 | — | 131 | 72 | 62 | 66 | 57 | 107 | 140 | 18 | 98 | 194 | 113 | 71 | 74 | 236 | — | — | 53 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 5 | S 17 | SSW 18 | SSW 16 | SW 15 | SSW 14 | SW 13 | SSW 13 | — | SSW 16 | SSW 15 | E 9 | — | — | — |
| kJ | — | — | — | — | — | 2 | 6 | 30 | 97 | 57 | 108 | 249 | 96 | — | 24 | 71 | 81 | — | — | — |
Wind waves Height (m) Direction Period (s) | E 9 | E 9 | E 10 | ENE 10 | — | — | — | — | SW 3 | S 5 | SSW 6 | SSE 8 | SE 7 | SSE 7 | SE 7 | SE 7 | ESE 8 | ESE 8 | ESE 9 | E 9 |
| kJ | 1769 | 1299 | 1864 | 2578 | — | — | — | — | 4 | 65 | 46 | 395 | 192 | 257 | 255 | 255 | 437 | 713 | 1081 | 2077 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 455 | 249 | 237 | 27 | 0 | 18 | 99 | 0 | 301 | 24 | 129 | 330 | 249 | 249 | 476 | 853 | 404 | 321 | 237 | 237 |
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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