Surf Forecasts:
Oyster Bay surf forecast from 11 Aug 2026:
- Best quality surf: Friday 14 Aug, 8AM (local time) - 4.5ft (1.4m), 16s period, SW swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 5PM (local time) - 6ft (1.8m), 17s period, SW swell with 1,882 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 8AM (local time) - 4.5ft (1.4m), 16s period with SW swell.
Best Forecast Surf Conditions for Oyster Bay this week:
The surf forecast for Oyster Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 14) at 8AM. The primary swell is predicted to be 1.4m and 16s period with a secondary swell of 1.8m and 8s. Another secondary swell of 2.3m and 8s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Oyster Bay in the next 16 days are 1.8m 17s and forecast to arrive on Thursday (Aug 13) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 13s period and expected on Monday (Aug 17) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Fri 14th Aug) | 4.5ft (1.4m) 16s |
| Best Surf | 8AM (Fri 14th Aug) | 4.5ft (1.4m) 16s |
| Most Powerful | 5PM (Thu 13th Aug) | 6ft (1.8m) 17s |
Table - best surf conditions forecast for Oyster Bay over the next 16 days.
The Lowdown
Alright, let’s break this down for Oyster Bay. It’s a real rollercoaster over the next 16 days, so don’t just paddle out blind.
First off, the water’s a chilly 60° right now, which is a solid 5° colder than normal for this time of year. That’s extreme, so you’ll be wanting a steamer.
The surf kicks off pretty average. Tuesday the 11th has some chest-high swell at 6ft from the SW, but it’s blowing a stiff 22 mph cross-off. The energy is moderate (1691). It’s clean, but nothing to write home about. Wednesday the 12th drops right down to waist-high slop, and Thursday is similar.
The first real standout is Friday morning, August 14th. We’ve got a nice 5ft SW groundswell with a 15-second period – that’s proper energy for a sandbar like this. The wind goes light offshore from the NE at 9 mph, so it’ll be glassy and lined up. The combined energy is still strong (1345). This is your morning to get wet – excellent for experienced surfers.
Saturday the 15th the wind turns onshore, and the quality falls off. Sunday the 16th and Monday the 17th are mostly poor with small, lumpy waves. Monday afternoon bumps back up to 7ft SW, but it’s cross-shore and messy.
Monday, August 19th is a beast. We’re looking at 10ft to 12ft SW swell, period just 11 seconds. The combined energy is huge – 2502 on Wednesday morning and 1960 on the afternoon. The wind is light and clean. But for a sandbar like Oyster Bay, that’s just too much. It’ll be closing out and dangerous. This one is for the big-wave chargers only.
The end of the second week gets ugly again with strong onshore winds from the 21st through the 22nd. There’s a decent pulse on Monday, August 25th: 7ft SW with a very long 15-second period, light offshore breeze, and very strong energy (2185). It’ll be clean and powerful, but that long period on a sandbar can make it a bit too lined up. Still, that morning is the best bet in the final week.
Overall, Oyster Bay is being fickle and inconsistent. You’ve got two clear windows: Friday the 14th for clean, manageable waves, and Monday the 25th for a bigger, more powerful groundswell. Everything in between is mostly onshore junk. If you’re into kite surfing, those windy days with decent swell might actually be more fun than trying to paddle through it.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 13°C on Wed night). Winds decreasing (strong winds from the E on Wed afternoon, light winds from the NE by Fri afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sun morning, min 15°C on Sun night). Winds decreasing (fresh winds from the W on Fri night, light winds from the NNE by Mon morning). | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | ESE 8 | SSW 21 | SSW 19 | SW 17 | SSW 20 | SW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | E 8 | E 8 | E 11 | SW 14 | SW 13 | E 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 602 | 705 | 922 | 1235 | 1089 | 1882 | 1096 | 842 | 831 | 685 | 532 | 532 | 509 | 142 | 196 | 303 | 907 | 1249 | 216 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross | cross-on | cross | off | cross-on | cross-on | cross | cross-off | cross-off | cross |
High Tide | 3:17AM1.61m | 3:43PM1.70m | 3:56AM1.66m | 4:20PM1.78m | 4:32AM1.66m | 4:54PM1.79m | 5:06AM1.62m | 5:27PM1.75m | 5:38AM1.54m | 5:59PM1.66m | 6:09AM1.43m | 6:29PM1.53m | |||||||
Low Tide | 9:13PM0.15m | 9:30AM0.02m | 9:54PM0.06m | 10:06AM-0.04m | 10:31PM0.03m | 10:39AM-0.05m | 11:06PM0.04m | 11:11AM-0.01m | 11:39PM0.10m | 11:41AM0.08m | 00:10AM0.20m | 12:10PM0.19m | 00:40AM0.31m | ||||||
 |  | |  | | | | | | | | | | | | | | | | |
 | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — |
 | 5:46 | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 17 | 16 | 16 | 22 | 20 | 22 | 27 | 25 | 18 | 18 | 24 | 26 | 19 | 15 | 17 | 19 | 20 |
Feels °C | 8 | 9 | 9 | 8 | 11 | 16 | 15 | 18 | 24 | 21 | 17 | 17 | 20 | 22 | 15 | 12 | 14 | 14 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 11 | SSW 19 | SW 17 | SW 16 | SW 17 | E 8 | E 8 | E 8 | E 8 | E 8 | SW 14 | SW 13 | WSW 13 | E 8 | E 11 | SW 14 | SW 13 | SW 14 |
| kJ | 500 | 366 | 922 | 1235 | 886 | 1882 | 691 | 405 | 313 | 356 | 241 | 532 | 509 | 451 | 196 | 303 | 907 | 1249 | 1267 |
Swell 2 Height (m) Direction Period (s) | S 10 | SSW 21 | SW 11 | SW 11 | SSW 20 | S 9 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | E 8 | E 8 | E 8 | WSW 13 | SW 13 | E 11 | E 11 | E 10 |
| kJ | 48 | 705 | 237 | 103 | 1089 | 7 | 1096 | 842 | 831 | 685 | 532 | 171 | 204 | 142 | 465 | 370 | 282 | 229 | 216 |
Swell 3 Height (m) Direction Period (s) | SSW 24 | SSE 9 | S 10 | S 10 | S 9 | — | S 9 | — | — | — | WSW 5 | SW 4 | WSW 5 | WSW 6 | E 12 | — | WSW 5 | SW 16 | — |
| kJ | 222 | 17 | 50 | 31 | 16 | — | 2 | — | — | — | 22 | 9 | 3 | 4 | 71 | — | 17 | 130 | — |
Wind waves Height (m) Direction Period (s) | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | — | — | — | — | E 5 | — | WSW 4 | WSW 5 | — | — | — |
| kJ | 602 | 484 | 756 | 892 | 587 | 628 | — | — | — | — | — | — | 53 | — | 7 | 26 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 189 | 189 | 189 | 132 | 171 | 132 | 47 | 0 | 0 | 2 | 1 | 171 | 0 | 19 | 22 | 2 | 64 | 171 | 2 |
Best forecast wave conditions in Eastern Cape (South) | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
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Information about the Oyster Bay Surf forecast
The above surf forecast table for Oyster Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Oyster Bay can be found by selecting the local surf guide option on the grey menu. Our Oyster 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 (Oyster 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 Oyster 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.
Oyster Bay is 24 km (15 miles) from the city of Kruisfontein. If you plan a holiday in Eastern Cape (South), look for hotels and other accommodation in Kruisfontein. Kruisfontein has rooms for a wide range of budgets as well as car hire and transport links.
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