Surf Forecasts:
Koeel Bay surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 7ft (2.2m), 14s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 20 Aug, 8AM (local time) - 8ft (2.5m), 14s period, SSW swell with 2,227 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 8PM (local time) - 5ft (1.6m), 12s 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 (Aug 19) at 8PM. The primary swell is predicted to be 1.6m and 12s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Koeel Bay in the next 16 days are 2.5m 14s and forecast to arrive on Thursday (Aug 20) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Wednesday (Aug 26) at 2AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 19th Aug) | 5ft (1.6m) 12s |
| Best Surf | 5AM (Thu 20th Aug) | 7ft (2.2m) 14s |
| Most Powerful | 8AM (Thu 20th Aug) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for Koeel Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
We’ve got a solid run of surf on the cards at Koeel Bay, a reef setup that’s fairly exposed to the south swell. The water’s sitting at 57°, which is a bit colder than usual for this time of year, so don’t forget a decent hood if you’re sensitive to it.
The week kicks off on Wednesday morning, 19 August, with a clean 6ft SSW swell and a cross-off breeze. It’s not firing, but it’s surfable. By Thursday morning, 20 August, things ramp up proper – 8ft of SSW groundswell, period around 13 seconds, light offshore wind, and the combined energy is pumping at 1807. That’s a solid, punchy wave for experienced surfers only. This is the standout of the whole outlook. Thursday afternoon drops off a little with the wind picking up, so aim for the early.
Friday morning, 21 August, sees clean 5ft SSW swell with offshore winds – a great option if you missed Thursday. The energy is moderate at 942. Friday afternoon gets cloudier and smaller.
We hit a flat spell from Saturday morning, 22 August, through Sunday, with poor conditions and cross-onshore winds. Monday’s also pretty weak and marginal. That’s four days of nothing much.
Tuesday, 25 August, brings a return to form – clean 4ft SW swell, light offshore in the morning, and glassy conditions in the afternoon. Energy is moderate at 639. Wednesday morning, 26 August, gets a bit of cross-onshore wind, but Thursday, 27 August, offers glassy 3ft surf in the morning – small but clean.
Friday, 28 August, turns onshore again, but things get wild closer to the end. Saturday, 29 August, throws up a massive 10ft to 12ft SSW swell with strong offshore winds. The energy is insane – 5383 in the afternoon. That’s big, powerful, and only for the absolute best out there. The wind is so strong it’ll be clean but hard to paddle into. Sunday, 30 August, is messy with strong cross-onshore winds, and that continues through Monday.
The first day of September, Tuesday, offers clean 4ft SW groundswell with moderate energy at 666. Not a standout, but a nice clean option. Wednesday, 2 September, drops away to tiny surf. Then, sign off on Thursday, 3 September, with glassy 4ft WSW swell – a lovely end to the run if you’re patient.
The absolute best on offer is Thursday morning, 20 August – big, clean, powerful groundswell at Koeel Bay. Second best is the massive Saturday, 29 August, but that’s for serious chargers only.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Fri afternoon, min 11°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Tue morning, min 12°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 12 | SW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | SW 15 | SW 16 | SW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 718 | 1066 | 1949 | 1211 | 722 | 560 | 317 | 322 | 379 | 319 | 594 | 600 | 488 | 349 | 293 | 482 | 915 | 979 | 1074 | 742 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-off | cross-off | off | off | glassy | cross | cross-on | cross-on | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off |
High Tide | 7:28PM1.17m | 8:00AM1.00m | 8:28PM1.05m | 9:38AM0.93m | 10:23PM0.99m | 11:53AM0.96m | 00:09AM1.05m | 1:00PM1.07m | 1:05AM1.15m | 1:38PM1.20m | 1:43AM1.25m | 2:09PM1.32m | 2:15AM1.35m | |||||||
Low Tide | 1:50AM0.55m | 1:51PM0.63m | 3:13AM0.64m | 3:46PM0.71m | 5:32AM0.63m | 6:06PM0.67m | 6:47AM0.54m | 7:07PM0.57m | 7:28AM0.43m | 7:45PM0.45m | 8:00AM0.32m | 8:17PM0.34m | ||||||||
 |  | | | | |  | | | | | | | | | | | | | | |
 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — |
 | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 14 | 15 | 16 | 13 | 16 | 20 | 15 | 16 | 18 | 15 | 15 | 16 | 14 | 18 | 19 | 17 | 21 | 27 | 26 |
Feels °C | 13 | 13 | 13 | 12 | 10 | 14 | 19 | 14 | 13 | 16 | 15 | 14 | 13 | 12 | 15 | 15 | 14 | 19 | 25 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 12 | SW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | SW 14 | SW 15 | SW 16 | SW 14 |
| kJ | 718 | 1066 | 1949 | 1211 | 722 | 560 | 317 | 322 | 379 | 319 | 594 | 600 | 488 | 349 | 293 | 228 | 915 | 979 | 1074 | 742 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SSW 11 | SSW 10 | S 14 | WSW 10 | SW 17 | SW 15 | — | — | SSW 15 | SSW 14 | SSW 15 | W 11 | SSW 16 | SW 16 | SE 6 |
| kJ | — | — | — | — | — | 401 | 310 | 96 | 198 | 12 | 107 | — | — | 42 | 81 | 242 | 157 | 539 | 906 | 46 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 14 | — | SW 17 | — | — | — | — | SW 14 | SW 14 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 210 | — | 12 | — | — | — | — | 208 | 482 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ESE 3 | ESE 4 | SSE 5 | — | NW 2 | NW 3 | — | — | S 3 | SSE 4 | SE 4 | SSE 5 | SE 5 | SE 5 | SE 6 | ESE 6 |
| kJ | — | — | — | — | 1 | 35 | 48 | — | 2 | 5 | — | — | 5 | 11 | 12 | 45 | 54 | 42 | 80 | 204 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 15 | 0 | 0 | 15 | 0 | 0 | 0 | 15 | 14 | 29 | 0 | 0 | 47 | 10 | 10 | 53 | 0 | 0 | 0 | 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.
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