Surf Forecasts:
Oyster Bay surf forecast from 16 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 11PM (local time) - 10ft (3.0m), 13s period, SW swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 11PM (local time) - 11ft (3.5m), 13s period, SW swell with 3,724 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 8PM (local time) - 2.5ft (0.8m), 11s 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 Monday (Aug 17) at 8PM. The primary swell is predicted to be 0.8m and 11s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Oyster Bay in the next 16 days are 3.5m 13s and forecast to arrive on Thursday (Aug 20) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 13s period and expected on Monday (Aug 17) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 17th Aug) | 2.5ft (0.8m) 11s |
| Best Surf | 11PM (Tue 18th Aug) | 10ft (3.0m) 13s |
| Most Powerful | 11PM (Thu 20th Aug) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Oyster Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what's happening at Oyster Bay. This spot is inconsistent, so we've got to pick our moments. The forecast is a real mixed bag of junk and then some serious, expert-only juice.
The first week is mostly a write-off. We've got a long gap of poor conditions from Sunday the 16th through Tuesday the 20th. The wind is relentlessly cross-onshore and choppy, making a mess of even the decent-sized swell. The water is running at 56.1°F, which is a massive 9.7° colder than usual for this time of year, so that's a brutal shock to the system.
Finally, we get a real stand-out on Wednesday morning, August 19th. Oyster Bay cleans right up with glassy conditions and a solid 8.2ft SW groundswell (12-second period). The wave energy is pumping hard at 2141. This is excellent for experienced surfers only; the size and power will be too much for beginners. Get it before the wind swings around again in the afternoon.
Thursday the 20th and Friday the 21st have some cleaner wind windows, but the swell gets too big. Thursday morning sees a 9.8ft SW swell, jumping to 11.5ft in the afternoon, and Friday morning is clean with lighter offshore wind, but still a hefty 8.2ft SW swell. These are expert-only sessions with that massive energy, so only the crew with big-wave balls should even look at it.
After that, the wind turns ugly again for a solid stretch from Saturday the 22nd through the end of the month. There's some hope on Monday the 31st of August with a glassy morning and a big, clean 11.5ft SW swell, but that's too far out to get excited about just yet. The long period groundswell (15-16 seconds) on the later dates will be intense but prone to closing out at this beach break.
So, the one true stand-out for the near future is Wednesday morning, August 19th at Oyster Bay. That's your window. The rest is either blown out, too big for comfort, or too far away to bank on.
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 15°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Fri afternoon, min 13°C on Thu night). Winds increasing (calm on Wed morning, strong winds from the W by Fri night). | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | SW 13 | SW 12 | E 8 | SW 14 | E 11 | E 11 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 841 | 718 | 99 | 1788 | 185 | 141 | 1408 | 2063 | 2445 | 2099 | 1999 | 1760 | 2555 | 3502 | 3543 | 1914 | 1347 | 999 | 558 | 836 | 3518 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-off | glassy | cross-on | cross-on | cross-on | on | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:59PM1.66m | 6:09AM1.43m | 6:29PM1.53m | 6:39AM1.31m | 6:59PM1.38m | 7:10AM1.18m | 7:31PM1.23m | 7:47AM1.05m | 8:18PM1.08m | 9:12AM0.92m | 10:37PM0.99m | 12:36PM0.95m | 00:51AM1.06m | ||||||||
Low Tide | 11:41AM0.08m | 00:10AM0.20m | 12:10PM0.19m | 00:40AM0.31m | 12:39PM0.33m | 1:12AM0.44m | 1:09PM0.47m | 1:49AM0.57m | 1:47PM0.62m | 2:55AM0.69m | 3:11PM0.74m | 5:56AM0.71m | 6:33PM0.73m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | |  | |
 | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 26 | 18 | 15 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 18 | 15 | 18 | 18 | 16 |
Feels °C | 21 | 14 | 13 | 14 | 14 | 17 | 13 | 13 | 16 | 16 | 13 | 13 | 12 | 12 | 15 | 14 | 18 | 10 | 10 | 10 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 12 | WSW 14 | SW 14 | SW 13 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 11 |
| kJ | 841 | 718 | 1142 | 1788 | 1783 | 1401 | 1408 | 2063 | 2445 | 2099 | 1999 | 1760 | 2555 | 3502 | 3543 | 1914 | 1347 | 999 | 558 | 836 | 2838 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 8 | E 8 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 4 | E 5 | E 8 | E 8 | — |
| kJ | 60 | 72 | 99 | 182 | 185 | 141 | 72 | 71 | 47 | 42 | 27 | 25 | 14 | 14 | 6 | 6 | 7 | 4 | 11 | 5 | — |
Swell 3 Height (m) Direction Period (s) | E 10 | E 11 | ESE 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | E 8 | E 8 | — | — | — |
| kJ | 52 | 55 | 28 | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 3 | WSW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | ENE 3 | — | W 4 | WSW 5 | WSW 6 | SW 11 |
| kJ | 4 | 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | 22 | 52 | 170 | 3518 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 21 | 4 | 1 | 1 | 2 | 1 | 14 | 1 | 64 | 0 | 4 | 19 | 19 | 4 | 64 | 0 | 4 | 132 | 133 | 577 | 249 |
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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