Surf Forecasts:
Koeel Bay surf forecast from 2 Sep 2026:
- Best quality surf: Thursday 3 Sep, 2PM (local time) - 11ft (3.5m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 5PM (local time) - 11ft (3.5m), 10s period, SSE swell with 2,132 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 8AM (local time) - 6.5ft (2.0m), 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 Wednesday (Sep 02) at 8AM. The primary swell is predicted to be 2.0m and 14s period. 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 3.5m 10s and forecast to arrive on Thursday (Sep 03) at 5PM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 2nd Sep) | 6.5ft (2.0m) 14s |
| Best Surf | 2PM (Thu 3rd Sep) | 11ft (3.5m) 9s |
| Most Powerful | 5PM (Thu 3rd Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Koeel Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about Koeel Bay.
The next couple of weeks have some real potential, but you need to pick your moments. The water’s sitting at 58°F, which is a bit colder than normal for this time of year, so a good wetsuit is the go.
We kick off Wednesday the 2nd of September with a clean 6 ft SW groundswell, period at 13 seconds. The wind is a light cross-off from the south, making it clean. This is a solid, fun size for intermediates, with some proper energy (1299 energy units). That’s your first standout window – a good, honest session.
Thursday the 3rd looks dicey. The swell builds fast to 12 ft from the SSE by the afternoon with 25 mph offshore winds. That’s big, clean, but it’s expert-only territory. The period drops to 10 seconds, making it a bit unruly.
We get a really special window on Sunday the 6th. Morning brings a 6 ft SSW groundswell with an incredible 18-second period and light offshore breeze. The energy reading is massive at 2631. Then, in the afternoon, it drops to 5 ft but goes totally glassy. This is a standout day for a reef break like Koeel Bay – long-period swells love reefs. The waves will have real push and shape.
After that, we hit a flat patch. Monday the 7th through Tuesday the 8th is poor with onshore winds and small, weak swell. The 9th and 10th bring back a cleaner, smaller SW groundswell, but nothing thrilling.
For the second week, keep an eye on Saturday the 12th afternoon and Sunday the 13th. We get a solid 7 ft to 8 ft SSW swell with 14-second period and clean offshore wind. The energy is pumping (2408 and 1824 respectively). This is strong, clean, and powerful – another real standout for experienced surfers.
The 14th of September sees a nice, consistent 7 ft S swell with moderate offshore wind. It’s a good, clean day with solid energy (1252). After that, the 15th offers a small, glassy afternoon for the longboard.
The window closes from the 16th with strong onshore winds and messy, lumpy conditions. Not worth paddling out.
If you’re a confident surfer, the standout is definitely Sunday the 6th of September, with the glassy afternoon as a bonus. The other real highlight is the combo on Saturday the 12th and Sunday the 13th – powerful, clean, and uncrowded if you’re lucky.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 18°C on Fri afternoon, min 11°C on Fri night). Winds increasing (light winds from the N on Wed night, strong winds from the SE by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 11°C on Sat morning). Winds decreasing (fresh winds from the ESE on Sat afternoon, calm by Sun afternoon). | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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 13 | SW 13 | SW 13 | SW 12 | SSE 10 | SSE 9 | SSE 9 | SSE 8 | SE 7 | SE 7 | SE 7 | SW 21 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 11 | SW 11 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1299 | 991 | 466 | 301 | 2132 | 1564 | 878 | 734 | 529 | 336 | 336 | 1051 | 2094 | 969 | 656 | 653 | 528 | 328 | 158 | 96 | 87 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | off | glassy | cross-on | cross-on | on | cross-on | on | cross | cross-on |
High Tide | 6:20PM1.44m | 6:47AM1.22m | 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 | ||||||||
Low Tide | 11:58AM0.27m | 00:38AM0.31m | 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 | ||||||||
 | |  | |  | | | | | | | | | | | | | | | | | |
 | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — |
 | — | 6:25 | — | — | 6:27 | — | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — |
mm | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 14 | 16 | 15 | 15 | 16 | 18 | 13 | 16 | 20 | 15 | 21 | 24 | 21 | 19 | 22 | 15 | 18 | 20 | 16 |
Feels °C | 13 | 13 | 13 | 12 | 7 | 6 | 7 | 8 | 5 | 9 | 14 | 10 | 20 | 24 | 21 | 15 | 17 | 13 | 18 | 19 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 11 | S 14 | SSW 13 | SSW 10 | SSW 10 | SW 21 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 11 | SW 11 | SW 13 |
| kJ | 1299 | 991 | 466 | 301 | 73 | 36 | 145 | 16 | 56 | 108 | 128 | 1051 | 2094 | 969 | 656 | 653 | 528 | 328 | 158 | 96 | 87 |
Swell 2 Height (m) Direction Period (s) | — | — | S 10 | S 9 | — | — | — | SSW 14 | S 13 | SW 10 | WSW 10 | SSW 10 | SE 7 | SE 7 | SSE 6 | S 15 | SE 7 | SW 16 | SW 12 | S 10 | S 9 |
| kJ | — | — | 117 | 136 | — | — | — | 38 | 85 | 15 | 9 | 74 | 82 | 44 | 25 | 4 | 2 | 10 | 36 | 47 | 25 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 13 | — | SW 26 | SSW 13 | — | S 9 | — | SSE 14 | S 13 | SE 11 | SSW 15 | SW 15 | SW 9 |
| kJ | — | — | — | — | — | — | — | — | 85 | — | 27 | 16 | — | 6 | — | 19 | 3 | 29 | 22 | 33 | 22 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 9 | SSE 10 | SSE 9 | SSE 9 | SSE 8 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | SE 7 | — | NNW 3 | WNW 3 | NW 3 | NW 3 | WSW 3 | — |
| kJ | — | — | — | 235 | 2132 | 1564 | 878 | 734 | 529 | 336 | 336 | 231 | 455 | 254 | — | 3 | 4 | 5 | 2 | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 15 | 216 | 1331 | 1493 | 3845 | 48 | 50 | 48 | 47 | 0 | 0 | 18 | 22 | 35 | 14 | 18 | 15 | 10 |
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.
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