Surf Forecasts:
Oyster Bay surf forecast from 21 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 5AM (local time) - 10ft (3.0m), 15s period, SW swell with cross-shore winds.
- Most powerful swell: Tuesday 25 Aug, 8AM (local time) - 10ft (3.0m), 14s period, SW swell with 3,420 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 5AM (local time) - 5.5ft (1.7m), 12s period with SSW 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 Saturday (Aug 22) at 5AM. The primary swell is predicted to be 1.7m and 12s period. 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 3.0m 14s and forecast to arrive on Tuesday (Aug 25) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 7s period and expected on Saturday (Aug 22) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sat 22nd Aug) | 5.5ft (1.7m) 12s |
| Best Surf | 5AM (Tue 25th Aug) | 10ft (3.0m) 15s |
| Most Powerful | 8AM (Tue 25th Aug) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Oyster Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on offer.
First up, we’ve got Oyster Bay (sandbar). Right now, the water is a chilly 60°, which is a whopping 6° colder than usual for this time of year – that’s seriously unusual, so you’ll want a thick suit.
The next few days are a bit of a write-off. Friday the 21st has some 7ft SW swell but it’s a cross-shore mess with a cross-chop, and the energy is moderate (1308). Saturday is a total no-go with near gale winds and blown-out conditions. Sunday and Monday are marginal, with gentle cross-onshore winds and choppy surf. The swell is there, but the quality is just not there.
Now, hold onto your board. Tuesday the 25th is a real standout. We’ve got a solid 10ft SW groundswell with a long 14-second period, generating strong wave energy (3301). The morning is glassy, and the afternoon is dead calm glassy. This is a proper groundswell, so it’ll be better shaped and have more energy, but at 10ft it’s expert territory only. The combined energy is strong, and the setup here is a sandbar, so with that long period, it might be a bit straight for the beach breaks – but if you’re an experienced surfer, this is the session to circle.
Wednesday the 26th sees a shift to 7ft SSW swell, but a fresh breeze keeps it clean. The energy is still moderate (1847). Thursday the 27th afternoon is a gem: 6ft S swell, 15-second period, light breeze, clean conditions, and strong energy (2572). It’s excellent for experienced surfers. Friday the 28th morning is glassy with 5ft S swell, but the energy drops (1182).
The weekend of the 29th and 30th is a mess again, with strong winds and poor conditions. The 31st Monday morning is glassy with 8ft SW swell, but it’s a big one for a sandbar, so only for the brave.
Looking into the first week of September, there’s a promising window on Thursday the 3rd morning with 8ft SW swell, 14-second period, light cross-onshore, and good energy (2024). A bit lumpy, but workable. Then Friday the 4th afternoon has a big 12ft ESE swell with a short 9-second period, but it’s clean and strong (2080). That’s expert-only, huge and punchy. Saturday the 5th morning is glassy with 8ft ESE swell, again for the experienced.
The best on offer: Tuesday the 25th is the true standout – glassy, massive groundswell, but experts only. For a slightly more manageable but still excellent session, Thursday the 27th afternoon is a beauty.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Fri afternoon, min 14°C on Sun night). Winds decreasing (strong winds from the W on Sat morning, calm by Sun night). | Days 5-7 Weather SummarySome drizzle, heaviest during Tue night. Warm (max 20°C on Thu morning, min 13°C on Mon night). Winds increasing (calm on Tue afternoon, strong winds from the E by Wed afternoon). | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 12 | SSW 11 | SW 11 | SW 12 | SW 11 | SW 11 | SW 11 | SW 13 | SW 12 | SW 12 | SW 12 | SW 14 | SW 13 | S 16 | SSW 15 | SSW 16 | SSW 12 | S 16 | S 15 | S 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1302 | 650 | 1665 | 742 | 515 | 1376 | 1204 | 1452 | 1076 | 897 | 1968 | 3294 | 2824 | 1569 | 1847 | 894 | 861 | 1927 | 1697 | 1208 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-on | cross-on | cross-on | cross-on | on | glassy | cross-on | cross-on | cross | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on |
High Tide | 10:37PM0.99m | 12:36PM0.95m | 00:51AM1.06m | 1:39PM1.09m | 1:43AM1.19m | 2:14PM1.23m | 2:17AM1.31m | 2:42PM1.37m | 2:46AM1.43m | 3:09PM1.50m | 3:14AM1.52m | 3:35PM1.62m | 3:42AM1.59m | |||||||
Low Tide | 3:11PM0.74m | 5:56AM0.71m | 6:33PM0.73m | 7:26AM0.59m | 7:40PM0.61m | 8:03AM0.45m | 8:15PM0.48m | 8:31AM0.32m | 8:45PM0.35m | 8:57AM0.20m | 9:13PM0.24m | 9:22AM0.11m | 9:41PM0.15m | |||||||
 |  |  | |  | | | | | | | | |  | | | | | | | |
 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — |
 | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 16 | 15 | 16 | 16 | 16 | 16 | 16 | 14 | 15 | 16 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 20 | 23 | 20 |
Feels °C | 14 | 11 | 8 | 8 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 15 | 16 | 16 | 12 | 9 | 9 | 17 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SSW 11 | E 4 | SW 12 | SW 11 | SW 11 | SW 11 | SW 13 | SW 12 | SW 12 | SW 12 | SW 14 | SW 13 | SW 13 | SSW 15 | SSW 12 | SSW 12 | S 16 | S 15 | E 10 |
| kJ | 1302 | 650 | 1 | 742 | 515 | 1376 | 1204 | 1452 | 1076 | 897 | 1968 | 3294 | 2824 | 1346 | 1847 | 887 | 861 | 1927 | 1697 | 963 |
Swell 2 Height (m) Direction Period (s) | E 8 | WSW 11 | E 8 | E 8 | E 8 | SW 15 | SW 14 | E 8 | E 9 | SSW 15 | E 10 | E 10 | E 9 | S 16 | SW 12 | SSW 16 | WSW 12 | WSW 12 | WSW 12 | S 15 |
| kJ | 6 | 329 | 5 | 5 | 5 | 33 | 379 | 1 | 2 | 246 | 2 | 7 | 7 | 1569 | 607 | 894 | 255 | 98 | 81 | 1208 |
Swell 3 Height (m) Direction Period (s) | — | E 8 | E 8 | — | — | E 8 | E 8 | — | SE 11 | E 9 | SE 11 | — | — | E 9 | — | WSW 13 | S 16 | — | — | WSW 11 |
| kJ | — | 5 | 5 | — | — | 1 | 1 | — | 4 | 2 | 5 | — | — | 2 | — | 444 | 322 | — | — | 87 |
Wind waves Height (m) Direction Period (s) | — | E 4 | SW 11 | WSW 7 | SW 8 | — | — | — | — | — | — | — | — | — | E 4 | E 5 | E 6 | E 8 | E 8 | — |
| kJ | — | 10 | 1665 | 578 | 470 | — | — | — | — | — | — | — | — | — | 20 | 98 | 335 | 454 | 875 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 502 | 47 | 248 | 132 | 19 | 19 | 4 | 0 | 7 | 7 | 1 | 1 | 1 | 163 | 189 | 189 | 132 | 47 | 0 | 19 |
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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