
Surf Forecasts:
Koeel Bay surf forecast from 3 Sep 2026:
- Best quality surf: Sunday 6 Sep, 8AM (local time) - 4.5ft (1.4m), 19s period, SW swell with offshore winds.
- Most powerful swell: Sunday 6 Sep, 11AM (local time) - 5.5ft (1.7m), 18s period, SSW swell with 1,740 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 8AM (local time) - 4.5ft (1.4m), 19s 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 Sunday (Sep 06) at 8AM. The primary swell is predicted to be 1.4m and 19s period with a secondary swell of 0.4m and 9s. Another secondary swell of 1.3m and 8s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Koeel Bay in the next 16 days are 1.7m 18s and forecast to arrive on Sunday (Sep 06) at 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 14s period and expected on Thursday (Sep 03) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 6th Sep) | 4.5ft (1.4m) 19s |
| Best Surf | 8AM (Sun 6th Sep) | 4.5ft (1.4m) 19s |
| Most Powerful | 11AM (Sun 6th Sep) | 5.5ft (1.7m) 18s |
Table - best surf conditions forecast for Koeel Bay over the next 16 days.
The Lowdown
Howdy, Rusty here. Let’s talk surf for Koeel Bay over the next couple weeks. It’s a mixed forecast, with some real gems and a lot of days you can sleep in.
Right off the bat, Thursday the 3rd through Saturday the 5th are not worth getting wet. Thursday morning has a small 3ft SW swell and a light cross-off breeze, but the energy is weak (409) and it’s a marginal call. Thursday arvo and all of Friday are a mess – 8ft to 10ft of SSE windswell with screaming offshore winds over 25 mph. The energy jumps into the thousands (1587), but those gusts make it impossible to paddle out or hold your line. By Saturday, the swell drops to 6ft but it’s short-period slop (7-8 seconds) with a strong offshore wind still gusting 22 mph. The energy is moderate (503-541) but the quality is poor.
Now, Sunday the 6th is where it’s at. That morning we’ve got a 6ft SSW groundswell with a period of 18 seconds – that’s real long-period energy. The combined energy is very strong (1864), and with a 9 mph offshore wind from the ESE, the conditions are clean and glassy. This is your best bet: the reef handles this kind of long-period swell beautifully, offering shaped-up, powerful waves with longer lulls between sets, making it easier to get out. Sunday afternoon is also a treat – 4ft on the same SSW groundswell (16-second period) with only a 3 mph offshore breeze from the east, nearly glassy. The water temp is about 58°, which is a touch colder than average for this time of year, so bring a wetsuit.
From Monday the 7th through Saturday the 12th, things go flat and messy. Swell drops to waist-high and the wind turns cross-on or cross-off. The energy stays below 600 for most of that time. Not worth a drive.
Then, on Sunday the 13th, a bigger pulse of SSW swell hits – 8ft with a 13-14 second period. The combined energy is massive, hitting 2773 in the afternoon. The wind is offshore from the ESE but gusting to 22 mph. This is for experts only, and it’s still marginal with that wind.
Monday the 14th is another standout morning: 7ft SSW groundswell (14 seconds) and absolutely glassy conditions with only a 3 mph wind from the SSW. Combined energy is very strong at 2320. The call is excellent for experienced surfers – that morning is a winner. But by afternoon, the wind goes onshore from the NW and it gets marginal.
The final days, from Tuesday the 15th to Friday the 18th, are mostly poor with cross-on winds and choppy conditions. However, Friday morning the 18th shows another chance: 6ft SSW groundswell (14 seconds) with a moderate offshore breeze from the SE, combined energy of 1345, and excellent conditions for experienced surfers.
Bottom line: get on the morning of Sunday the 6th for the cleanest, longest-period session. The morning of Monday the 14th is the big, glassy swell for the advanced crew. Everything else is either junk or for experts only in strong winds.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu afternoon. Very mild (max 19°C on Sat afternoon, min 11°C on Fri night). Winds increasing (light winds from the NNE on Thu morning, strong winds from the ESE by Fri afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 14°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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) | SW 12 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SE 8 | SE 8 | SE 7 | SW 21 | SSW 18 | SSW 16 | SW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SW 11 | SW 14 | SW 13 | SW 13 | SW 12 |
Wave Graph | |||||||||||||||||||||
256 | 1469 | 1569 | 1032 | 933 | 589 | 413 | 381 | 890 | 1740 | 864 | 640 | 347 | 536 | 359 | 260 | 97 | 130 | 140 | 103 | 164 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-off | cross-off | off |
High Tide | 7:12PM1.30m | 7:52AM1.10m | 8:30PM1.17m | 9:39AM1.04m | 10:27PM1.13m | 11:35AM1.12m | 00:04AM1.21m | 12:46PM1.28m | 1:07AM1.34m | 1:35PM1.45m | 1:54AM1.45m | 2:15PM1.59m | 2:33AM1.53m | ||||||||
Low Tide | 12:44PM0.39m | 1:37AM0.44m | 1:53PM0.53m | 3:15AM0.53m | 4:01PM0.59m | 5:18AM0.49m | 5:58PM0.50m | 6:34AM0.37m | 7:05PM0.34m | 7:25AM0.23m | 7:53PM0.20m | 8:06AM0.12m | 8:33PM0.08m | ||||||||
7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | |
— | 6:27 | — | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 14 | 15 | 16 | 13 | 16 | 19 | 15 | 21 | 26 | 23 | 24 | 25 | 20 | 21 | 23 | 17 | 18 | 19 | 15 |
Feels °C | 13 | 7 | 6 | 7 | 7 | 5 | 9 | 12 | 9 | 19 | 25 | 22 | 22 | 24 | 21 | 21 | 23 | 17 | 16 | 15 | 11 |
Swell 1 Height (m) Direction Period (s) | S 9 | SW 12 | SW 12 | S 15 | S 14 | SSW 13 | S 10 | SSW 10 | SW 21 | SSW 18 | SSW 16 | SW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SW 11 | SW 14 | SW 13 | SW 13 | SW 12 |
153 | 118 | 67 | 4 | 15 | 56 | 75 | 125 | 890 | 1740 | 864 | 640 | 347 | 536 | 359 | 260 | 97 | 130 | 140 | 103 | 164 | |
Swell 2 Height (m) Direction Period (s) | SW 12 | — | — | S 15 | SSW 14 | SW 11 | SW 10 | WSW 10 | SSW 9 | S 9 | S 9 | SSE 7 | SW 14 | SSE 12 | SW 18 | SW 16 | S 10 | SW 11 | S 9 | S 8 | S 8 |
256 | — | — | 4 | 18 | 18 | 15 | 10 | 34 | 6 | 15 | 29 | 208 | 29 | 12 | 42 | 49 | 57 | 14 | 12 | 5 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 11 | — | SW 25 | SSW 12 | — | S 12 | SE 10 | SSE 6 | S 20 | SSE 11 | ESE 11 | SW 15 | S 10 | W 11 | WSW 2 | SSE 8 |
— | — | — | — | — | 9 | — | 25 | 15 | — | 3 | 15 | 15 | 8 | 12 | 48 | 83 | 46 | 21 | 1 | 6 | |
Wind waves Height (m) Direction Period (s) | — | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SE 8 | SE 8 | SE 7 | SE 8 | SE 7 | SE 7 | — | — | WNW 4 | — | — | — | — | — | — | — |
— | 1469 | 1569 | 1032 | 933 | 589 | 413 | 381 | 354 | 118 | 91 | — | — | 10 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 967 | 1019 | 1331 | 3848 | 48 | 48 | 48 | 47 | 0 | 0 | 0 | 4 | 18 | 0 | 19 | 29 | 0 | 0 | 302 | 0 |
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.










