Surf Forecasts:
Off The Wall surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 10ft (3.0m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 8AM (local time) - 11ft (3.5m), 13s period, SW swell with 3,874 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2AM (local time) - 8ft (2.5m), 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 Thursday (Aug 20) at 2AM. The primary swell is predicted to be 2.5m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Off The Wall in the next 16 days are 3.5m 13s and forecast to arrive on Thursday (Aug 20) 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 1.6m 5s period and expected on Monday (Aug 24) at 11PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 20th Aug) | 8ft (2.5m) 12s |
| Best Surf | 5AM (Thu 20th Aug) | 10ft (3.0m) 13s |
| Most Powerful | 8AM (Thu 20th Aug) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Off The Wall over the next 16 days.
The Lowdown
Alright, let’s switch to feet and miles.
We’ve got a solid run of surf kicking off this Thursday, 20 August, at Off The Wall. This is a reef break, exposed to the SW swell, and it’s an advanced spot—so leave the foam boards at home. The water temp is about average for this time of year, nothing wild.
The first few days are a bit of a mixed bag. Thursday morning has a solid 12 ft SW swell, but the wave energy is very strong (3587), and the comment says it’s marginal. The wind is a cross-off, so it’s clean, but that size is only for the experienced. The combo of size and period (13 seconds) means it’s a proper groundswell, but at a reef, that’s fine. The afternoon drops a bit but stays big.
Friday, 21 August, is where the first real standout lives. The morning sees a 6 ft SW swell with an offshore wind—light breeze at 16 km/h, making it glassy. The energy is moderate (882), and the conditions are described as very good. That’s the pick for the early session. The afternoon gets even better for experienced surfers, with a 5 ft SSW swell, clean conditions, and excellent surf (1180 energy). That’s a solid session.
Saturday, 22 August, we have a drop-off. Small swell, cross-on winds, marginal. Not worth paddling out.
Sunday, 23 August, morning is back on. A 8 ft WSW swell, 13-second period, cross-off wind, and excellent conditions for experienced surfers. Energy is strong (1748). That’s a really good window. The afternoon holds up too, but it’s a touch smaller.
Monday, 24 August, the swell backs off, and the wind picks up. Moderate breeze, cross-off, but the energy is moderate and the comments are marginal. Not the best.
Then Tuesday, 25 August, is another standout. Morning sees a 7 ft SW swell, 14-second period, with a gentle offshore wind. The energy is strong (1949), and the conditions are excellent for experienced surfers. The afternoon is just as good, with a clean 7 ft swell. That’s a full day of quality waves.
Wednesday, 26 August, is a write-off. Onshore wind, small, poor.
Thursday, 27 August, morning is small but clean. A 4 ft WSW swell, very good conditions, but it’s small. The afternoon has a longer period (15 seconds) but a moderate breeze. It’s clean, but the energy is moderate.
Friday, 28 August, morning is a beauty. 7 ft WSW swell, 14-second period, moderate offshore wind, and excellent conditions. Energy is strong (1997). That’s a big session. The afternoon is bigger at 8 ft, but the wind is a fresh breeze, and it’s marginal.
Saturday, 29 August, morning has a 7 ft SW swell with a fresh offshore wind. Clean, but the energy is very strong (2478). It’s a bit on the edge for
Rusty
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 23°C on Tue afternoon, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 13 | SW 12 | SW 12 | SW 11 | SSW 11 | SSW 10 | SSW 13 | SW 11 | SW 10 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | SW 15 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 2032 | 3587 | 2577 | 1422 | 882 | 485 | 411 | 469 | 515 | 735 | 1748 | 1430 | 1080 | 569 | 376 | 1661 | 1949 | 1664 | 1129 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-on | cross-on | off | cross-off | cross-off | off | cross-off | cross-off | off | off | off | cross-off |
High Tide | 8:14AM1.22m | 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 | |||||||
Low Tide | 2:05AM0.76m | 2:09PM0.83m | 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 | |||||||
 |  | | | | |  | | | | | | | | | | | | | |
 | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — |
 | 6:19 | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 13 | 14 | 17 | 14 | 14 | 15 | 16 | 15 | 15 | 13 | 14 | 15 | 14 | 17 | 23 | 23 |
Feels °C | 12 | 11 | 11 | 10 | 12 | 16 | 12 | 11 | 13 | 17 | 14 | 12 | 10 | 11 | 11 | 10 | 13 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 13 | SW 12 | SW 12 | SW 11 | WSW 11 | SSW 10 | SSW 13 | SW 11 | SW 10 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | SW 15 | SW 14 | SW 14 | SW 13 |
| kJ | 2032 | 3587 | 2577 | 1422 | 882 | 379 | 411 | 469 | 515 | 735 | 1748 | 1430 | 1080 | 569 | 376 | 1661 | 1949 | 1664 | 1129 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SSW 10 | WSW 11 | WSW 10 | WSW 10 | WSW 14 | — | — | — | SSW 11 | SW 11 | W 11 | — | SSW 15 | SSE 7 |
| kJ | — | — | — | — | — | 316 | 291 | 198 | 77 | 569 | — | — | — | 146 | 258 | 151 | — | 144 | 73 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SSW 14 | — | WSW 17 | SSW 12 | — | — | — | SSW 14 | SW 14 | — | — | — | — |
| kJ | — | — | — | — | — | — | 81 | — | 27 | 129 | — | — | — | 127 | 301 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 4 | SSE 5 | SSW 11 | — | — | — | — | — | — | SSE 4 | SSE 4 | SSE 5 | SSE 5 | SSE 6 | SSE 6 | SE 7 |
| kJ | — | — | — | 25 | 60 | 485 | — | — | — | — | — | — | 33 | 36 | 56 | 107 | 145 | 136 | 176 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 11 | 39 | 0 | 0 | 0 | 0 | 15 | 15 | 0 | 0 | 7 | 0 | 9 | 87 | 0 | 0 | 0 | 0 |
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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