Surf Forecasts:
Haardebaai surf forecast from 1 Sep 2026:
- Best quality surf: Tuesday 1 Sep, 8PM (local time) - 11ft (3.5m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 11PM (local time) - 11ft (3.5m), 14s period, SW swell with 4,356 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 8PM (local time) - 11ft (3.5m), 13s period with SW swell.
Best Forecast Surf Conditions for Haardebaai this week:
The surf forecast for Haardebaai over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 01) at 8PM. The primary swell is predicted to be 3.5m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Haardebaai in the next 16 days are 3.5m 14s and forecast to arrive on Tuesday (Sep 01) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Thursday (Sep 03) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 1st Sep) | 11ft (3.5m) 13s |
| Best Surf | 8PM (Tue 1st Sep) | 11ft (3.5m) 13s |
| Most Powerful | 11PM (Tue 1st Sep) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Haardebaai over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve got a solid 16-day window for Haardebaai, but it’s a tale of two halves. The first few days are a ripper, then it gets messy, before a possible late revival.
The action kicks off on Tuesday, 1st September. We’re looking at a solid 12ft swell pouring in from the SW, with a long 13-second period. That’s proper groundswell energy. The combined energy is a massive 3905, so there’s plenty of power. The wind is a light WNW, blowing cross-offshore, which is going to keep the face of that reef clean. The water is sitting at 58°, which is a bit colder than usual for this time of year, so you’ll want a good steamer. This is prime stuff, but it’s for advanced surfers only – 12ft is serious business. Keep an eye out, the crowds are possible here.
Wednesday the 2nd still has some size, with 10ft SW swell, but the wind swings around to the SSE and S, putting it cross-on. It’s not blown out, but it’s not as clean as Tuesday. The energy dips a bit too, with readings of 3341 and 2795. It’s surfable, but the magic is gone.
Then we hit a bad run. From Thursday the 3rd through to Monday the 7th morning, it’s mostly poor. The wind gets nasty, with onshore and cross-onshore gales up to 34 mph. Even when the swell is there, like on Sunday the 6th with a 7ft SW swell, the wind is junk. That period is a write-off for decent waves.
Monday 7th September brings a change. The wind turns offshore from the NW, with a gentle to moderate breeze. The swell drops to 4ft to 5ft from the SSW, with a 13-second period. The energy is moderate (987 and 1176). It’s a clean, offshore morning, making it the next standout window. It’s a big step down in size from the first day, but it’ll be the cleanest, most user-friendly waves of the first week.
The middle of the week (8th to 11th) is back to ordinary or poor conditions, with onshore winds or just small, weak swell.
Saturday 12th September is a sneaky one. The wind goes glassy in the afternoon, with a light SSE breeze. The swell is only 3ft from the WSW, but it’s clean and the energy is low (305). For a mellow, grovelly session, it’s a nice little window.
Sunday 13th September looks promising too. A fresh offshore WNW wind, and the swell bumps up to 6ft from the WSW, with a long 15-second period. The energy is strong (2320). This is a proper groundswell, and with the offshore wind, it’ll be clean. This is likely the best of the second week, but it’s a long-range call, so keep your fingers crossed.
The final days drop off again, with onshore winds. The very last day, Wednesday 16th September, shows an 8ft SW swell, but it’s got onshore wind, so it’s likely a messy, powerful beast for experts only.
The best on offer: Tuesday 1st September for the big, powerful, clean groundswell (advanced only), and Monday 7th September for clean, offshore waves at a more manageable size. Sunday 13th September is the long-range wildcard that could be a beauty.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Thu afternoon. Very mild (max 15°C on Wed morning, min 13°C on Tue night). Winds increasing (calm on Tue night, strong winds from the SE by Thu afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 12°C on Fri night). Winds decreasing (near gales from the ESE on Sat afternoon, light winds from the NE by Sun night). | |||||||||||||||||||
Tue 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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 13 | SW 14 | SW 13 | SW 13 | WSW 13 | S 8 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 10 | SSW 10 | SSW 10 | SW 20 | SW 17 | SW 16 | SW 14 | SSW 13 | SSW 13 | SSW 12 |
Wave Graph | ||||||||||||||||||||
3905 | 4081 | 3341 | 2795 | 1700 | 1529 | 493 | 317 | 238 | 143 | 123 | 214 | 186 | 738 | 2442 | 1267 | 799 | 547 | 692 | 569 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | cross-off | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | off | off | off |
High Tide | 5:37PM1.54m | 6:00AM1.33m | 6:17PM1.43m | 6:46AM1.21m | 7:09PM1.29m | 7:53AM1.09m | 8:29PM1.16m | 9:45AM1.03m | 10:28PM1.13m | 11:39AM1.12m | 00:05AM1.21m | 12:48PM1.28m | 1:07AM1.34m | |||||||
Low Tide | 11:54PM0.19m | 11:58AM0.28m | 00:38AM0.30m | 12:44PM0.40m | 1:37AM0.43m | 1:53PM0.54m | 3:14AM0.52m | 3:57PM0.60m | 5:15AM0.49m | 5:55PM0.51m | 6:33AM0.36m | 7:03PM0.35m | ||||||||
— | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | |
6:24 | — | — | 6:25 | — | — | 6:27 | — | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — | |
mm | — | — | — | — | — | 1 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 15 | 14 | 14 | 14 | 15 | 15 | 16 | 13 | 15 | 18 | 15 | 18 | 24 | 22 | 22 | 23 | 18 |
Feels °C | 12 | 14 | 13 | 13 | 13 | 9 | 5 | 6 | 5 | 6 | 3 | 5 | 9 | 6 | 13 | 21 | 21 | 19 | 19 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 10 | SSW 10 | SSW 10 | SW 20 | SW 17 | SW 16 | SW 14 | SSW 13 | SSW 13 | SSW 12 |
3905 | 4081 | 3341 | 2795 | 1700 | 843 | 493 | 311 | 238 | 143 | 123 | 214 | 186 | 738 | 2442 | 1267 | 799 | 547 | 692 | 569 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | S 10 | SW 10 | — | WSW 12 | S 15 | SSW 14 | S 13 | WSW 10 | WSW 10 | SSW 10 | S 9 | SSW 19 | SSW 17 | WSW 13 | WSW 13 | WSW 12 |
— | — | — | — | 192 | 96 | — | 317 | 4 | 37 | 85 | 67 | 38 | 85 | 6 | 289 | 237 | 440 | 484 | 258 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 14 | SW 10 | S 13 | SSW 13 | SW 13 | SW 13 | — | S 12 | S 13 | SE 9 | SE 10 | ESE 10 |
— | — | — | — | — | — | — | — | 4 | 59 | 85 | 18 | 7 | 85 | — | 3 | 13 | 162 | 110 | 64 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | S 8 | SSE 9 | SSE 9 | SE 8 | SE 8 | SE 7 | ESE 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | — | — | — |
— | — | — | — | — | 1529 | 1895 | 2041 | 1086 | 816 | 786 | 569 | 691 | 697 | 611 | 542 | 267 | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 4 | 4 | 4 | 0 | 55 | 562 | 2678 | 1349 | 1978 | 64 | 61 | 61 | 29 | 8 | 4 | 4 | 0 | 33 | 0 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||
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Information about the Haardebaai Surf forecast
The above surf forecast table for Haardebaai provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Haardebaai can be found by selecting the local surf guide option on the grey menu. Our Haardebaai 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 (Haardebaai) 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 Haardebaai 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 Overberg? If you are looking for accommodation near Haardebaai, camping, hotels and holiday cottages in Overberg, consider staying in Grabouw which is 30 km (19 miles) away. Other places in and around Overberg where you can find information about places to rent, and car hire include Hermanus which is 37 km (23 miles) away, Stellenbosch, Kayamnandi and Bellville.











