
Surf Forecasts:
Koeel Bay surf forecast from 8 Aug 2026:
- Best quality surf: Sunday 9 Aug, 8AM (local time) - 11ft (3.5m), 12s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 9 Aug, 8AM (local time) - 11ft (3.5m), 12s period, SW swell with 3,536 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 8PM (local time) - 8ft (2.4m), 14s period with SW swell.
Best Forecast Surf Conditions for Koeel Bay this week:
The surf forecast for Koeel Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 08) at 8PM. The primary swell is predicted to be 2.4m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Koeel Bay in the next 16 days are 3.5m 12s and forecast to arrive on Sunday (Aug 09) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 8th Aug) | 8ft (2.4m) 14s |
| Best Surf | 8AM (Sun 9th Aug) | 11ft (3.5m) 12s |
| Most Powerful | 8AM (Sun 9th Aug) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for Koeel Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve only got one spot on the radar for the next couple of weeks, Koeel Bay. That’s the call – a reef break that’s fairly consistent and takes a south swell.
The window kicks off on Saturday afternoon, August 8th, with a chunky 8ft SW swell running at 14 seconds. That’s a lot of energy moving through – the combined energy is sitting at a hefty 2390. The problem is that wind is a cross-off from the south at 12 mph, which keeps it clean but the report flags it as marginal. Sunday morning, August 9th, actually drops a bit to 5ft from the SW, but a strong 22 mph SSE wind is making things messy. The real standout pops up on Sunday afternoon, August 9th. The models are showing a solid 12ft SSW swell with a 12-second period and the combined energy jumps to an insane 4941. The wind is a cross-off, but the report says the swell is predicted to be too big for this break. That’s a heavy, expert-only proposition. The water temperature is sitting at 59°, which is about normal for this time of year.
Monday the 10th settles down a bit with a 6ft S swell in the morning, and the wind is cross-off, but the surf is still marginal. The afternoon gets a bit of offshore wind from the SE, and the swell bumps up to 7ft from the south, but it’s still not looking like a classic.
Tuesday the 11th is where the gear starts to shift. The morning brings a 6ft S swell with a solid 12-second period, and we’ve got a clean offshore ESE wind at 12 mph. The report says this is excellent for experienced surfers. The combined energy is a solid 1550. The afternoon eases off to 4ft from the SSW with a gentle offshore from the east. It’s good, but the morning is the pick.
Now, hold on to your boards. Wednesday the 12th is the absolute stand-out of the whole forecast. The morning is glassy – zero wind from the ENE, and a 4ft SW groundswell with a massive 19-second period. The combined energy is a strong 1578, so there’s heaps of push even though the height is modest. That’s a very long period swell, which at a reef break like Koeel Bay is going to produce some beautifully lined-up, clean waves. The afternoon is just as good, with glassy conditions and a 4ft SW swell at 18 seconds. This is as good as it gets.
Thursday the 13th keeps the quality high. The morning has a 5ft SW swell at 18 seconds with a light offshore cross-off, and the afternoon drops to 4ft at 16 seconds with a clean offshore from the ESE. Excellent conditions.
After that, the swell starts to fade. Friday the 14th and Saturday the 15th see the size drop to under 3 feet, and the wind turns onshore or cross-onshore, making it pretty ordinary. Sunday the 16th is a bit of a reprieve with a 3ft SW swell and a gentle offshore from the SE, but it’s small. The pattern from Monday the 17th onward is a real letdown. The swell drops to a pathetic 1ft by the 20th, and the wind is mostly cross-onshore or offshore but on tiny, gutless waves. The combined energy falls to under 100 on the 19th. The last shimmer of hope comes on Sunday, August 23rd, with a 3ft SSW swell and a clean offshore ESE wind, but it’s small. It’s a long wait from the glory days of the 12th.
So, bottom line: the best surf on offer is the Wednesday, August 12th session. The morning glass-off with that 19-second SW groundswell is the clear winner. The Tuesday morning of the 11th is a close second. After that, it’s a slow fade to nothing.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Sat afternoon. Very mild (max 17°C on Sat afternoon, min 10°C on Mon night). Winds increasing (light winds from the SSE on Sat night, fresh winds from the SSE by Sun afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Thu afternoon, min 13°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 14 | SW 13 | SW 12 | SSW 12 | SSW 11 | S 11 | S 10 | S 13 | S 12 | SSW 11 | SW 22 | SW 19 | SW 18 | SW 16 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 |
Wave Graph | ||||||||||||||||||||
2390 | 1659 | 724 | 3235 | 2222 | 815 | 951 | 1866 | 1031 | 349 | 770 | 901 | 996 | 834 | 1482 | 943 | 456 | 355 | 285 | 304 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | glassy | glassy | cross-off | cross-off | off | cross-off | cross-on | cross-on | cross-on |
High Tide | 11:56PM1.26m | 12:47PM1.24m | 1:07AM1.37m | 1:44PM1.39m | 2:02AM1.47m | 2:31PM1.54m | 2:48AM1.55m | 3:14PM1.65m | 3:30AM1.59m | 3:53PM1.71m | 4:09AM1.58m | 4:30PM1.72m | 4:46AM1.53m | |||||||
Low Tide | 5:39PM0.50m | 6:35AM0.35m | 6:59PM0.38m | 7:34AM0.23m | 7:58PM0.24m | 8:22AM0.11m | 8:46PM0.12m | 9:03AM0.03m | 9:29PM0.05m | 9:41AM-0.01m | 10:09PM0.02m | 10:17AM-0.00m | 10:47PM0.04m | |||||||
— | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | 7:24 | — | — | |
6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | |
mm | 2 | 3 | 4 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 12 | 11 | 12 | 12 | 13 | 13 | 12 | 13 | 16 | 14 | 18 | 21 | 21 | 23 | 24 | 22 | 24 | 27 | 20 |
Feels °C | 13 | 10 | 5 | 4 | 5 | 7 | 6 | 6 | 8 | 12 | 10 | 16 | 19 | 17 | 20 | 22 | 17 | 22 | 23 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 12 | SSW 12 | SSW 11 | S 18 | SSW 14 | S 13 | S 12 | SSW 11 | SW 22 | SW 19 | SW 18 | SW 16 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 |
2390 | 1659 | 724 | 3235 | 994 | 6 | 247 | 1866 | 1031 | 349 | 770 | 901 | 996 | 834 | 1482 | 943 | 456 | 355 | 285 | 304 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | WSW 11 | WSW 11 | WSW 11 | SW 26 | SW 24 | SE 8 | SE 6 | SSE 10 | SSW 21 | ESE 11 | SE 11 | SE 5 | SE 10 | ESE 9 | ESE 9 |
— | — | — | — | — | 302 | 359 | 101 | 27 | 91 | 112 | 49 | 61 | 799 | 46 | 20 | 7 | 17 | 78 | 68 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 18 | WSW 11 | — | W 16 | WSW 10 | SSW 11 | SW 10 | SW 10 | ESE 9 | — | — | — | — | NW 8 | — |
— | — | — | — | — | 6 | 143 | — | 5 | 20 | 153 | 52 | 27 | 52 | — | — | — | — | 9 | — | |
Wind waves Height (m) Direction Period (s) | — | — | S 7 | SSW 12 | SSW 11 | S 11 | S 10 | — | SE 7 | SE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | — | — | — | SSE 11 | ESE 11 |
— | — | 368 | 1706 | 2222 | 815 | 951 | — | 487 | 159 | 554 | 576 | 331 | 211 | 157 | — | — | — | 12 | 12 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 47 | 5 | 302 | 1392 | 53 | 214 | 185 | 0 | 0 | 0 | 5 | 0 | 0 | 5 | 0 | 0 | 0 | 4 | 22 | 14 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||
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Information about the Koeel Bay Surf forecast
The above surf forecast table for Koeel Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Koeel Bay can be found by selecting the local surf guide option on the grey menu. Our Koeel Bay 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 (Koeel Bay) 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 Koeel Bay 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.
Koeel Bay is 18 km (11 miles) from the city of Grabouw. If you plan a holiday in Overberg, look for hotels and other accommodation in Grabouw. Grabouw has rooms for a wide range of budgets as well as car hire and transport links.











