Surf Forecasts:
Off The Wall surf forecast from 20 Aug 2026:
- Best quality surf: Friday 21 Aug, 2AM (local time) - 8ft (2.4m), 12s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 25 Aug, 8AM (local time) - 8ft (2.4m), 14s period, SW swell with 2,261 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 2AM (local time) - 8ft (2.4m), 12s period with SW swell.
Best Forecast Surf Conditions for Off The Wall this week:
The surf forecast for Off The Wall over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 2AM. The primary swell is predicted to be 2.4m and 12s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Off The Wall in the next 16 days are 2.4m 14s and forecast to arrive on Tuesday (Aug 25) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Tuesday (Aug 25) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 21st Aug) | 8ft (2.4m) 12s |
| Best Surf | 2AM (Fri 21st Aug) | 8ft (2.4m) 12s |
| Most Powerful | 8AM (Tue 25th Aug) | 8ft (2.4m) 14s |
Table - best surf conditions forecast for Off The Wall over the next 16 days.
The Lowdown
Alright, let’s swap the numbers. Rusty here again, breaking it down in feet and Fahrenheit.
The next couple of weeks at Off The Wall are all about the big stuff for the experts. The water is about normal for this time of year, so no surprises there.
We kick off on Friday the 21st of August. The swell is a solid 7ft from the SW, with a period of 11 seconds. The wind is a light offshore, and the combined energy is a hefty 1106. This is clean and powerful. Not for the faint of heart. Friday afternoon backs off a bit to 5ft but stays clean.
Saturday the 22nd is a washout with onshore wind, so you’ll see a gap in the good stuff.
Sunday the 23rd of August is a ripper. A 7ft swell from the WSW, with a 13-second period, and the energy jumps to 1667. The wind is a clean cross-off. This is a standout for the first week.
The real highlight is Tuesday the 25th of August. The morning has a 8ft SW groundswell, a 14-second period, and a solid offshore breeze. The energy is a massive 2157. This is world-class for the advanced surfer. The afternoon is just as good.
Monday the 31st of August provides a breather with a 4ft swell and a glassy morning.
Now, for the big one. Thursday the 3rd of September. We’re looking at an enormous 16ft WSW swell, with a 14-second period. The wind is light offshore. The combined energy is a mind-boggling 10384. This is a genuine, serious, big-wave event. Friday the 4th of September is just as massive, with a 16ft SW swell and energy of 10884. It’s a long way out, but it looks like a true monster.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 17°C on Fri afternoon, min 12°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Wed afternoon, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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 | SW 11 | SSW 11 | SSW 10 | SSW 12 | SW 11 | SW 12 | WSW 13 | WSW 12 | SW 12 | SW 11 | WSW 11 | SW 15 | SW 14 | SW 14 | WSW 13 | WSW 13 | WSW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 1610 | 1106 | 485 | 358 | 451 | 629 | 1193 | 1387 | 1596 | 1299 | 961 | 376 | 2038 | 2157 | 1788 | 972 | 648 | 525 | 542 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross | on | on | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-on |
High Tide | 8:42PM1.27m | 9:53AM1.16m | 10:27PM1.21m | 11:59AM1.20m | 00:10AM1.25m | 1:03PM1.31m | 1:08AM1.34m | 1:42PM1.42m | 1:47AM1.44m | 2:13PM1.53m | 2:20AM1.53m | 2:41PM1.63m | 2:51AM1.61m | ||||||
Low Tide | 3:29AM0.83m | 3:59PM0.91m | 5:24AM0.82m | 6:03PM0.88m | 6:38AM0.74m | 7:07PM0.78m | 7:23AM0.64m | 7:47PM0.67m | 7:57AM0.54m | 8:19PM0.57m | 8:27AM0.46m | 8:48PM0.47m | |||||||
 |  | |  | |  | | | | | | | | | | | | | | |
 | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — |
 | 6:19 | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 17 | 15 | 15 | 15 | 15 | 14 | 15 | 13 | 14 | 15 | 13 | 15 | 18 | 17 | 19 | 26 | 25 |
Feels °C | 10 | 12 | 15 | 14 | 13 | 13 | 15 | 12 | 12 | 10 | 11 | 11 | 8 | 11 | 14 | 13 | 16 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | WSW 11 | SSW 10 | SSW 12 | SW 11 | SW 12 | WSW 13 | WSW 12 | SW 12 | SW 11 | WSW 11 | SW 15 | SW 14 | SW 14 | WSW 13 | WSW 13 | WSW 12 | SW 12 |
| kJ | 1610 | 1106 | 435 | 358 | 451 | 629 | 1193 | 1387 | 1596 | 1299 | 961 | 376 | 2038 | 2157 | 1788 | 972 | 648 | 525 | 542 |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 10 | WSW 11 | WSW 11 | WSW 16 | WSW 14 | SSW 11 | — | — | SSW 13 | SW 10 | W 11 | — | SSW 15 | SSW 13 | SSE 7 | SSE 8 | SSE 8 |
| kJ | — | — | 310 | 291 | 214 | 27 | 494 | 280 | — | — | 66 | 253 | 157 | — | 84 | 98 | 134 | 113 | 64 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 14 | — | — | WSW 10 | — | — | — | — | SW 15 | — | — | — | — | SSW 11 | SSW 11 | SSW 14 |
| kJ | — | — | — | 77 | — | — | 195 | — | — | — | — | 171 | — | — | — | — | 170 | 167 | 38 |
Wind waves Height (m) Direction Period (s) | — | SE 5 | SSW 11 | — | NW 2 | — | — | — | — | — | — | S 4 | SSE 5 | SSE 6 | SSE 6 | SSE 7 | SE 7 | SE 7 | — |
| kJ | — | 56 | 485 | — | 1 | — | — | — | — | — | — | 36 | 105 | 129 | 283 | 230 | 334 | 285 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 9 | 15 | 15 | 0 | 0 | 1 | 0 | 9 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 12 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
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Information about the Off The Wall Surf forecast
The above surf forecast table for Off The Wall provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Off The Wall can be found by selecting the local surf guide option on the grey menu. Our Off The Wall 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 (Off The Wall) 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 Off The Wall 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.
Are you planning a holiday in Cape Town? If you are looking for accommodation near Off The Wall, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 8 km (5 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Robben Island which is 12 km (7 miles) away, Bellville, Atlantis and Kayamnandi.
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