
Surf Forecasts:
Off The Wall surf forecast from 14 Sep 2026:
- Best quality surf: Sunday 20 Sep, 11PM (local time) - 5ft (1.6m), 13s period, WSW swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 2AM (local time) - 10ft (3.0m), 14s period, WSW swell with 3,582 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 11PM (local time) - 5ft (1.6m), 13s period with WSW 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 Sunday (Sep 20) at 11PM. The primary swell is predicted to be 1.6m and 13s period with a secondary swell of 0.1m and 19s. 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 3.0m 14s and forecast to arrive on Wednesday (Sep 16) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Friday (Sep 18) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 20th Sep) | 5ft (1.6m) 13s |
| Best Surf | 11PM (Sun 20th Sep) | 5ft (1.6m) 13s |
| Most Powerful | 2AM (Wed 16th Sep) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Off The Wall over the next 16 days.
The Lowdown
Alright, let me tell you how it’s looking for Off The Wall (Big Island). Water temp is sitting at 56°F, which is about 5°F colder than normal for this time of year – that’s properly unusual, so you’ll want a thick suit. The coming days are a mixed bag, but there’s a couple of windows worth paddling out for.
Right off the bat, Monday the 14th and Tuesday the 15th are pretty much a write-off. We’ve got a fresh cross-onshore wind at 19 to 22 mph and lumpy, poor surf. Combined wave energy is only moderate, around 621 to 626. Not worth your time.
Things start to turn around on Wednesday morning the 16th. Swell swings to the SW at 8 ft, period 13 seconds, and we get a clean offshore wind from the SSE at 22 mph. The energy jumps way up to 3721 – that’s strong stuff. But the wind is strong too, and at 8 ft it’s only for experienced surfers. The afternoon holds smaller at 6 ft with a strong offshore but still hard to paddle into.
Thursday the 17th and Friday the 18th stay similar: clean offshore winds, SW swell around 6 to 6 ft, but those winds are fresh to strong at 22 to 28 mph. The energy stays strong, between 1011 and 1795, but it’s marginal due to the wind strength making it tough to get into the waves.
Now, the standout window arrives on Monday the 21st. Monday morning gives us a light breeze from the SE at only 6 mph, offshore, with a 4 ft WSW swell at 12 seconds. The energy drops to 551, but the conditions are clean and the wind is light – that’s the kind of session where you can relax and enjoy. It’s not huge, but it’s good.
Tuesday the 22nd morning could be the pick of the whole period. Glassy conditions with a slight air from the SE at 3 mph, offshore, and a 4 ft SW groundswell at 13 seconds. Energy is strong at 1073, and the comment says excellent for experienced surfers. That’s the one to circle.
Wednesday the 23rd sees the wind pick up again, fresh offshore, but the swell drops to 4 ft – marginal.
Thursday the 24th offers another nice window. Both morning and afternoon have light breezes, offshore or cross-offshore, with a 4 ft SW swell at 12 to 13 seconds. Energy around 1057 and 558. Expect very good conditions – a solid option for a relaxed session.
The rest of the run into the end of September looks smaller, with some strong offshore winds and occasional clean conditions. The 26th and 27th have stronger winds, but the 28th Monday morning brings a light offshore breeze and a 4 ft SW groundswell at 15 seconds – very long period. That will peel nicely down the reef, but the sets will be few and far between. Clean though.
Overall, the best bets are Tuesday the 22nd morning and Monday the 21st morning for the cleanest, most user-friendly conditions. Thursday the 24th is also worth a look. The bigger days mid-week are for experts only, and the wind will keep things challenging.
Rusty
Short Range ForecastHeavy rain (total 25mm), heaviest during Tue night. Very mild (max 16°C on Mon afternoon, min 12°C on Tue night). Winds increasing (light winds from the NW on Tue night, strong winds from the SE by Wed night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Fri afternoon, min 13°C on Thu night). Mainly strong winds. | |||||||||||||||||||
Mon 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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) | NW 7 | NW 8 | NW 6 | SW 16 | WSW 14 | SW 13 | SW 13 | SW 13 | SW 12 | WSW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 | SW 13 | SW 14 | WSW 13 |
Wave Graph | ||||||||||||||||||||
337 | 269 | 266 | 1001 | 3582 | 2494 | 1086 | 2005 | 1550 | 835 | 754 | 756 | 1069 | 932 | 514 | 700 | 543 | 891 | 1154 | 725 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | off |
High Tide | 5:08PM1.74m | 5:25AM1.58m | 5:38PM1.62m | 5:57AM1.48m | 6:09PM1.50m | 6:32AM1.36m | 6:43PM1.36m | 7:19AM1.25m | 7:33PM1.24m | 8:50AM1.17m | 9:28PM1.15m | 11:21AM1.20m | 11:45PM1.20m | |||||||
Low Tide | 11:17PM0.41m | 11:21AM0.48m | 11:46PM0.52m | 11:50AM0.60m | 00:18AM0.63m | 12:24PM0.73m | 00:57AM0.74m | 1:11PM0.85m | 2:06AM0.84m | 3:12PM0.95m | 4:29AM0.87m | 5:44PM0.89m | ||||||||
— | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | |
6:36 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:38 | — | — | 6:39 | — | — | 6:40 | — | |
mm | — | 2 | — | — | 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 15 | 15 | 14 | 14 | 15 | 14 | 14 | 16 | 14 | 16 | 18 | 15 | 18 | 18 | 16 | 16 | 16 | 15 |
Feels °C | 10 | 10 | 9 | 8 | 9 | 7 | 7 | 5 | 5 | 8 | 6 | 8 | 9 | 7 | 11 | 11 | 8 | 11 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | SW 11 | SW 16 | WSW 14 | SW 13 | SW 13 | SW 13 | SW 12 | WSW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 | SW 13 | SW 14 | WSW 13 |
268 | 217 | 168 | 1001 | 3582 | 2494 | 1086 | 2005 | 1550 | 835 | 754 | 756 | 1069 | 932 | 514 | 700 | 543 | 891 | 1154 | 725 | |
Swell 2 Height (m) Direction Period (s) | SSE 13 | SE 13 | SW 18 | SE 13 | NW 7 | SW 14 | WSW 13 | W 12 | — | SSW 11 | S 10 | SW 15 | — | SW 16 | SW 14 | — | SSW 10 | SE 11 | — | W 19 |
16 | 7 | 192 | 7 | 156 | 849 | 1011 | 383 | — | 222 | 49 | 255 | — | 203 | 305 | — | 18 | 19 | — | 7 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NNW 7 | WSW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | 41 | 378 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NW 7 | NW 8 | NW 6 | NW 7 | — | — | SSE 5 | SE 6 | SSE 6 | SSE 6 | SSE 6 | SE 6 | SSE 6 | SE 7 | SE 6 | SE 7 | SSE 6 | SSE 6 | S 5 | S 5 |
337 | 269 | 266 | 596 | — | — | 94 | 118 | 245 | 281 | 211 | 176 | 382 | 271 | 359 | 412 | 254 | 122 | 113 | 82 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 74 | 31 | 234 | 191 | 139 | 345 | 175 | 52 | 178 | 406 | 53 | 19 | 1419 | 14 | 139 | 406 | 461 | 175 | 868 | 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.










