Surf Forecasts:
Oyster Bay surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 11PM (local time) - 10ft (3.0m), 8s period, E swell with cross-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★+): Wednesday 12 Aug, 11PM (local time) - 10ft (3.0m), 8s period with E 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 Wednesday (Aug 12) at 11PM. The primary swell is predicted to be 3.0m and 8s period with a secondary swell of 1.3m and 18s. Another secondary swell of 0.7m and 11s is also forecast. The wind is predicted to be cross-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 14s period and expected on Monday (Aug 17) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 12th Aug) | 10ft (3.0m) 8s |
| Best Surf | 11PM (Wed 12th Aug) | 10ft (3.0m) 8s |
| 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, Rusty here, breaking down the next couple of weeks. It’s a slow burner, and the conditions are working against us for a while.
We’re looking at Oyster Bay, which is an inconsistent sandbar, so don’t bank on it firing every day. The water is sitting at 60°, which is a solid 5° colder than it should be for this time of year – that’s a very unusual chill, so you’ll be needing a thick suit.
The first real window hits on Friday, August 14th. That morning, the wind is offshore from the NNE, blowing at 12 mph, and the waves are a clean 5ft from the SW. The period is a long 15 seconds, giving it that proper groundswell push. The energy is strong at 1286. It’s excellent for experienced surfers, but that size and power is too much for beginners. The break is exposed to the swell, so with the offshore wind, it should be looking good. Friday afternoon holds similar conditions with a gentle offshore breeze.
The next one to circle on the calendar is Friday, August 21st. The morning session has a clean 5ft SSW swell with a long 15-second period and a gentle offshore breeze from the ENE at 9 mph. The energy is back up to 1270, and it’s another excellent window for experienced surfers. The afternoon gets a bit bigger with a 6ft SW swell, but the wind picks up to a cross-off 16 mph, which will still be rideable.
If you’re hanging around for later, Thursday, August 27th, the morning is glassy. Total calm, zero wind, with a 6ft E swell. The period is short at 7 seconds, so it’ll be a bit bouncy, but that glassy surface will make it look pretty. The energy is moderate at 691. It’s not the best quality, but it’s a session.
For the rest of the run, we’ve got a lot of cross-on wind and choppy, lumpy conditions, especially from the 19th through the 24th, when the swell gets big – over 7ft – but the wind is just a mess. That’s more of a kite-surfing setup than a paddling one. The 16th and 17th have some small, clean waves but nothing to get excited about.
So, the standout days are Friday, August 14th, and Friday, August 21st. Both are mornings for the experienced crew.
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 N by Fri night). | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sun morning, min 15°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 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) | SSW 21 | E 8 | SW 17 | SSW 20 | SW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | ENE 8 | E 10 | E 8 | SW 15 | E 10 | SW 16 | E 10 | E 10 | E 10 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 705 | 922 | 1235 | 1089 | 1882 | 1096 | 930 | 831 | 773 | 532 | 532 | 183 | 71 | 146 | 266 | 208 | 306 | 161 | 123 | 113 | 164 |
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 | off | off | cross-off | cross-on | cross | off | cross-off | cross-on | cross | cross-off | cross | cross | cross-on | cross-on | cross |
High Tide | 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 | 6:39AM1.31m | 6:59PM1.38m | ||||||||
Low Tide | 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 | 12:39PM0.33m | 1:12AM0.44m | |||||||
 | |  | | | | | | | |  |  | | | | | | | | | | |
 | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — |
 | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 16 | 17 | 22 | 20 | 23 | 27 | 25 | 19 | 20 | 25 | 27 | 21 | 16 | 16 | 17 | 17 | 16 | 16 | 16 |
Feels °C | 9 | 9 | 8 | 12 | 16 | 15 | 19 | 24 | 21 | 17 | 19 | 20 | 23 | 18 | 14 | 16 | 16 | 18 | 12 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 19 | SW 17 | E 8 | SW 17 | E 9 | E 8 | E 8 | E 8 | SW 14 | SW 14 | WSW 13 | WSW 13 | WSW 13 | E 9 | SW 14 | SW 13 | SW 14 | SW 13 | WSW 13 | WSW 12 |
| kJ | 372 | 922 | 1235 | 601 | 1882 | 708 | 356 | 266 | 273 | 532 | 532 | 458 | 465 | 465 | 201 | 1179 | 1077 | 1249 | 1094 | 749 | 480 |
Swell 2 Height (m) Direction Period (s) | SSW 21 | SW 11 | SW 11 | SW 16 | S 9 | SW 16 | SW 15 | SW 15 | SW 15 | E 8 | E 8 | E 5 | E 7 | E 8 | WSW 12 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
| kJ | 705 | 237 | 103 | 886 | 7 | 1096 | 930 | 831 | 773 | 199 | 135 | 16 | 65 | 146 | 226 | 208 | 165 | 161 | 123 | 92 | 65 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | S 11 | S 10 | SSW 20 | — | S 9 | — | — | — | W 4 | WSW 4 | E 9 | E 10 | SW 6 | SW 15 | SW 5 | SW 16 | — | — | — | — |
| kJ | 17 | 55 | 31 | 1089 | — | 2 | — | — | — | 8 | 3 | 62 | 71 | 1 | 266 | 24 | 306 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | — | E 8 | E 9 | — | — | — | W 4 | — | ENE 8 | N 3 | WSW 3 | WSW 4 | — | — | ENE 3 | W 3 | WSW 5 | WSW 6 |
| kJ | 545 | 906 | 939 | — | 659 | 1095 | — | — | — | 7 | — | 183 | 1 | 3 | 26 | — | — | 7 | 7 | 113 | 164 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 189 | 189 | 132 | 171 | 132 | 14 | 0 | 0 | 0 | 1 | 171 | 0 | 0 | 19 | 2 | 0 | 132 | 2 | 22 | 4 | 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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