Surf Forecasts:
Haardebaai surf forecast from 17 Aug 2026:
- Best quality surf: Monday 17 Aug, 2PM (local time) - 8ft (2.5m), 13s period, WSW swell with offshore winds.
- Most powerful swell: Thursday 20 Aug, 8AM (local time) - 11ft (3.5m), 13s period, SW swell with 4,284 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 2PM (local time) - 8ft (2.5m), 13s period with WSW 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 Monday (Aug 17) at 2PM. The primary swell is predicted to be 2.5m and 13s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Haardebaai in the next 16 days are 3.5m 13s and forecast to arrive on Thursday (Aug 20) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Aug 22) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Mon 17th Aug) | 8ft (2.5m) 13s |
| Best Surf | 2PM (Mon 17th Aug) | 8ft (2.5m) 13s |
| Most Powerful | 8AM (Thu 20th Aug) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Haardebaai over the next 16 days.
The Lowdown
Right, listen up. It’s Rusty here, and I’ve been staring at the charts for Haardebaai, and it’s a bit of a mixed bag for the next couple of weeks. We’ve got plenty of swell, no doubt about that, but the wind is gonna be the main player in this game, and it’s gonna shut things down more than a few times.
Right out of the gate, we’ve got some proper size rolling in. Haardebaai (Western Cape) is a heavy reef set-up, so I’m only really looking at this for the experienced crew. The water’s sitting at 58°, which is a bit colder than usual for this time of year, so make sure the hood is on.
Monday the 17th sees a solid 10ft of WSW swell, but that fresh offshore from the NNW is what will keep it clean. The energy is strong (2658), and it’s a real opportunity, but the notes are saying the tide might be questionable, so it’s not a free-for-all. It’s a day to be picky about your session.
From there, the wind swings onshore for a few days and the whole place turns into a washing machine. Tuesday and Wednesday are all about onshore slop and poor conditions as the swell drops slightly but stays messy. Thursday the 20th looks properly heavy with a 12ft SW swell and strong wave energy (4105), but that strong onshore wind is gonna make it a complete write-off. That’s not surfing, that’s just a beating. And with size that big and onshore wind, you’d be better off with a kite out there.
The weekend pulls a bit of a save. Saturday the 22nd is the standout in this first week. The morning’s still small-ish at 7ft, but the wind goes light offshore (WNW) and it’s clean. Then the afternoon, the swell bumps back up to 8ft from the SW with a 12-second period and light cross-offshore wind, and the energy is pumping (2297). The notes are calling it “excellent” and for a reef like this, that’s a real sweet spot. This is the day to clear your schedule for.
Sunday the 23rd and Monday the 24th get messy again with onshore winds, so we’ll call that a write-off.
Now, looking deeper into the long-range, there’s another glimmer. On Wednesday the 26th, the morning looks glassy with light winds and a clean 6ft WSW swell. It’s not huge, but it’s clean, which can be the best kind of day on a reef. Then Saturday the 30th and Sunday the 31st look like a big pulse of swell is on the way, but it’s accompanied by some serious wind. That 31st of August is looking particularly monstrous, with 12ft swells and strong onshore winds—a total mess. You don’t want any part of that.
So, overall, we’ve got two windows that stand out: the Saturday the 22nd afternoon, which looks like the best of the bunch, and the glassy morning of Wednesday the 26th as a promising but less certain second option. It’s a spot that demands respect, and with those long period swells (over 13 seconds) it will be breaking with serious authority. Go get it when it’s clean, but be ready to sit it out when it’s not.
Stay wet.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon afternoon. Very mild (max 17°C on Mon morning, min 12°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Sat morning, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
AM | 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) | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 12 | WSW 12 | WSW 11 | SSW 11 | SSW 11 | SW 11 | SW 12 | SW 13 | SW 13 | WSW 13 | WSW 12 |
Wave Graph | |||||||||||||||||||||
2658 | 2187 | 1995 | 1025 | 2771 | 2397 | 1978 | 1742 | 2065 | 4105 | 2877 | 802 | 628 | 494 | 372 | 1112 | 1966 | 2103 | 1676 | 1086 | 694 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | on | on | cross-on | cross | cross-off | cross-off | on | on | cross-on | on | on | cross-on | off | cross-off | cross-on | on | cross-on | on |
High Tide | 6:12PM1.45m | 6:30AM1.23m | 6:46PM1.31m | 7:08AM1.11m | 7:26PM1.17m | 8:01AM1.00m | 8:27PM1.05m | 9:44AM0.92m | 10:24PM0.99m | 11:57AM0.97m | 00:08AM1.05m | 1:01PM1.08m | 1:03AM1.15m | ||||||||
Low Tide | 11:56AM0.25m | 00:30AM0.31m | 12:28PM0.38m | 1:06AM0.43m | 1:03PM0.51m | 1:52AM0.55m | 1:52PM0.63m | 3:15AM0.64m | 3:46PM0.72m | 5:34AM0.63m | 6:08PM0.67m | 6:48AM0.53m | 7:08PM0.57m | ||||||||
7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:15 | — | — | |
— | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:17 | — | — | 6:17 | — | — | 6:19 | — | |
mm | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 15 | 14 | 15 | 13 | 13 | 14 | 14 | 13 | 13 | 12 | 13 | 14 | 12 | 15 | 15 | 15 | 14 | 15 | 14 |
Feels °C | 12 | 13 | 13 | 14 | 12 | 8 | 11 | 12 | 12 | 10 | 9 | 6 | 9 | 9 | 8 | 14 | 14 | 16 | 11 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 12 | WSW 12 | WSW 11 | SSW 11 | SSW 11 | SW 11 | SW 12 | SW 13 | SW 13 | WSW 13 | WSW 12 |
2658 | 2187 | 1995 | 1016 | 2771 | 2397 | 1978 | 1742 | 2065 | 4105 | 2877 | 802 | 628 | 494 | 372 | 1112 | 1966 | 2103 | 1676 | 1086 | 694 | |
Swell 2 Height (m) Direction Period (s) | E 11 | W 16 | SW 13 | SW 12 | E 11 | E 10 | E 10 | E 10 | E 10 | — | — | SSW 12 | S 11 | WSW 11 | WSW 11 | WSW 11 | SW 14 | — | SSW 14 | SSW 12 | SSW 11 |
9 | 193 | 299 | 1025 | 9 | 9 | 8 | 8 | 2 | — | — | 748 | 543 | 427 | 291 | 24 | 331 | — | 105 | 475 | 508 | |
Swell 3 Height (m) Direction Period (s) | E 7 | ESE 10 | E 11 | E 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 15 |
4 | 19 | 21 | 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 88 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ESE 4 | — | — | — | — | — | ESE 4 | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 8 | — | — | — | — | — | 24 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 31 | 34 | 0 | 4 | 4 | 8 | 31 | 0 | 0 | 4 | 366 | 8 | 4 | 4 | 4 | 0 | 0 | 4 | 4 | 54 | 4 |
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.











