Surf Forecasts:
Off The Wall surf forecast from 16 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 10ft (3.0m), 13s period, SW swell with offshore winds.
- Most powerful swell: Thursday 20 Aug, 8AM (local time) - 11ft (3.5m), 13s period, SW swell with 3,425 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 8PM (local time) - 8ft (2.4m), 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 Monday (Aug 17) at 8PM. The primary swell is predicted to be 2.4m and 13s 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 1.8m 6s period and expected on Sunday (Aug 23) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 17th Aug) | 8ft (2.4m) 13s |
| 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, Rusty here, and we're looking at Off The Wall on the North Shore of Oahu. This is a heavy, fast reef slab—not for beginners, not for the faint of heart.
The first couple days are ugly. Monday the 17th is blown out with messy cross-onshore wind and a lumpy 8 ft swell from the WSW. Kite surfers might have a look, but for paddle surfing it’s a no-go.
Tuesday the 18th morning cleans up. Cross-off wind, 7 ft from the SW at 12 seconds, clean and lined up for the experienced crew. Moderate wave energy (1857). Afternoon bumps to 10 ft—expert only, still clean, and energy jumps to 2596.
Wednesday the 19th stays clean: 8 ft in the morning, 8 ft in the afternoon, both SW at 12 seconds. Good shape, not the standout.
Then we hit Thursday the 20th morning. This is it for the first week. 12 ft from the SW at 13 seconds, clean cross-off wind, and a combined energy reading of 3425. Powerful, thumping, and loaded. Afternoon holds at 10 ft but wind picks up, so the morning is the call.
Friday the 21st fades fast. 7 ft in the morning, energy dropping to 1442, then 5 ft by afternoon. Still clean but small.
Saturday the 22nd morning is a quiet gem. Near-calm wind, clean 7 ft SW swell at 11 seconds. Crowds are possible, but if you’re early, you might score a few alone.
Sunday the 23rd morning brings another solid pulse: 7 ft from the SSW at 12 seconds, clean, strong energy (2504). The afternoon goes to 14-second period but wind picks up.
Monday the 24th morning has offshore wind and 7 ft from the SSW at 11 seconds. Clean and crisp. Afternoon drops to 4 ft but with a 14-second period, still clean.
Now, circle Tuesday the 25th. Morning shows 3 ft but with a 24-second period—incredibly long, glassy. The afternoon is the bomb: 8 ft from the SW at a 20-second period, light wind, glassy, and an energy reading of 5640. That is exceptional. For experts only. This is the day.
Wednesday the 26th afternoon goes completely glassy. Zero wind, 7 ft SW at 14 seconds. Smooth as butter.
Thursday the 27th is another clean, solid day with offshore in the afternoon: 7 ft SW at 13 seconds, light breeze. Consistent quality.
Friday the 28th gets messy with cross-onshore wind and lumpy 7 ft. Skip it.
Saturday the 29th sees a short-period pulse—10 ft from the SW at 10 seconds, but cross-shore wind at 15 mph creates a chop. Better for kite gear.
Sunday the 30th cleans up again: 7 ft to 7 ft SW at 12 seconds, clean.
Monday the 31st morning has offshore wind and a clean 7 ft SSW swell.
And Tuesday the 1st of September morning finishes strong: 10 ft from the SW at 14 seconds, clean, with strong energy (2857).
Your true standouts: Thursday the 20th morning for raw power, and Tuesday the 25th afternoon for that exceptional long-period groundswell under glass. Both are expert-only. For smaller, cleaner sessions, look at Saturday the 22nd morning or Thursday the 27th afternoon.
Water temp is about average for the time of year, no major anomaly, so a 3/2 wetsuit should be fine.
Rusty, out.
Short Range ForecastMostly dry. Very mild (max 17°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Sat afternoon, min 11°C on Fri morning). Wind will be generally light. | ||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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) | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 12 | SW 12 | SW 11 | SSW 11 | WSW 11 | SW 11 | SW 11 | WSW 13 |
Wave Graph | |||||||||||||||||||
3282 | 2528 | 2026 | 1624 | 1459 | 2596 | 2379 | 1771 | 1550 | 1687 | 3425 | 2727 | 1422 | 947 | 582 | 317 | 1004 | 1808 | 1968 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | off |
High Tide | 6:03AM1.55m | 6:22PM1.64m | 6:39AM1.44m | 6:59PM1.51m | 7:19AM1.32m | 7:41PM1.38m | 8:14AM1.22m | 8:42PM1.27m | 9:53AM1.16m | 10:27PM1.21m | 11:59AM1.20m | 00:10AM1.25m | |||||||
Low Tide | 00:00AM0.43m | 12:02PM0.47m | 00:36AM0.54m | 12:35PM0.59m | 1:15AM0.65m | 1:14PM0.71m | 2:05AM0.76m | 2:09PM0.83m | 3:29AM0.83m | 3:59PM0.91m | 5:24AM0.82m | 6:03PM0.88m | |||||||
— | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | |
6:16 | — | 6:16 | — | — | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 17 | 15 | 15 | 15 | 13 | 14 | 15 | 14 | 14 | 14 | 12 | 13 | 15 | 13 | 15 | 17 | 16 |
Feels °C | 14 | 14 | 15 | 15 | 13 | 11 | 9 | 11 | 12 | 12 | 11 | 10 | 8 | 10 | 12 | 10 | 14 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 12 | SW 12 | SW 11 | SSW 11 | SSW 10 | SW 11 | SW 11 | WSW 13 |
3282 | 2528 | 2026 | 1624 | 1459 | 2596 | 2379 | 1771 | 1550 | 1687 | 3425 | 2727 | 1422 | 947 | 582 | 304 | 1004 | 1808 | 1968 | |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 16 | SW 14 | SW 12 | — | — | — | — | — | — | — | — | SSW 11 | WSW 11 | WSW 11 | — | WSW 14 | SSW 12 |
— | — | 208 | 261 | 398 | — | — | — | — | — | — | — | — | 495 | 372 | 317 | — | 508 | 550 | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | 65 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | — | — | — | — | — | — | — | — | — | SE 3 | SSE 5 | SSE 5 | — | — | — | — | — |
— | 9 | — | — | — | — | — | — | — | — | — | 5 | 52 | 66 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 5 | 5 | 15 | 0 | 0 | 406 | 0 | 9 | 20 | 0 | 39 | 406 | 0 | 9 | 25 | 0 | 0 | 25 | 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.











