Surf Forecasts:
Koeel Bay surf forecast from 16 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 5AM (local time) - 5ft (1.6m), 13s period, SW swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 11AM (local time) - 8ft (2.4m), 13s period, SSW swell with 1,891 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 11PM (local time) - 4.5ft (1.3m), 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 Monday (Aug 17) at 11PM. The primary swell is predicted to be 1.3m and 14s 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 2.4m 13s and forecast to arrive on Thursday (Aug 20) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Sunday (Aug 23) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 17th Aug) | 4.5ft (1.3m) 14s |
| Best Surf | 5AM (Tue 18th Aug) | 5ft (1.6m) 13s |
| Most Powerful | 11AM (Thu 20th Aug) | 8ft (2.4m) 13s |
Table - best surf conditions forecast for Koeel Bay over the next 16 days.
The Lowdown
Alright, this is Rusty comin' to ya from Koeel Bay. We’ve got a solid 16-day run of surf on the cards here, a proper mixed bag of conditions to work through. The first few days are a bit of a write-off with messy winds, but then it turns on, big time.
The week starts off rough. Monday morning you’ve got a 5ft SW swell with some energy in it (644), but that 12 mph cross-onshore NNW wind is just chopping it to bits. Poor conditions. It stays poor into Monday afternoon with a bit less wind but still cross-onshore from the WSW.
Then, Tuesday the 18th is where things get real. The swell bumps up to 6ft from the SW, period at 12 seconds, and the energy jumps right up (1708). The big news is that clean, cross-off wind from the SSE. This is gonna be excellent for experienced surfers. It’s a bit of a punchy 6ft, and with that moderate wave energy, it’s gonna be fun but might push a beginner around. Tuesday afternoon stays clean but the rating slips a bit so the morning is your window.
Wednesday the 19th is a bit of a rest day. Swell drops to 6ft, still from the SSW, but the wind goes light and cross-shore. It’s ridable, but nothing special. The water temp here feels about average for this time of year, so no drama there.
Now, Thursday the 20th is a stand-out. That swell has built to 8ft from the SSW, with a 13-second period. The energy is pumping hard (1891). The wind is a clean cross-off from the SSE. This is big, powerful surf. 8ft is firmly in expert territory, so only the crew with some experience should be out there. It’s gonna be a ripper.
Friday the 21st backs off a notch to a cleaner 5ft, still with that sweet cross-off wind. Solid, fun, intermediate waves.
Saturday the 22nd is a very special morning. The swell is only 5ft from the SSW, but the wind goes totally glassy. Flat calm. It’s gonna be a beautiful, clean morning. Get on it early before the wind swings cross-onshore in the afternoon.
Sunday the 23rd looks like the pick of the entire outlook. Another push of swell, 7ft from the SSW, with a long 14-second period. Combined energy is through the roof (1927). The wind is a clean cross-off from the SSE all morning. This is an absolute gem for experienced surfers. The waves will have proper power and shape, but that longer period might make it a little walled-off for a standard beach break. It’ll work great here at Koeel Bay being a reef.
Monday the 24th is still fun, 6ft S swell, clean cross-off. Good.
Then we hit Tuesday the 25th, and it’s a bit of a freak event. The morning has an unusual 3ft swell, but a 24-second period. It’s clean and offshore. That’s a very special, long-period groundswell. It’ll be small but incredibly clean. The afternoon is the real story though: the swell jumps to 7ft from the SSW with a 21-second period, and the energy is massive (3879). The wind is light offshore from the SE. This is a very, very powerful, long-period swell. This is for serious experienced surfers only, and the wave will be extremely clean. A real highlight.
Wednesday the 26th starts a bit messy onshore, but the afternoon turns glassy again with a 5ft swell, making for a clean evening session.
The run continues with clean conditions and good waves through the end of the month. Thursday the 27th is clean and fun, Friday the 28th is a write-off with onshore wind.
Saturday the 29th looks blown out with strong 16 mph cross-onshore wind and a short period windswell. That’s a kite-surfing day, not a paddle-surfing day.
The outlook finishes strong. Sunday the 30th and Monday the 31st look clean and fun with 5ft to 6ft SSW swells. Then Tuesday the 1st of September, we get another solid 7ft SSW swell with a 14-second period and clean offshore wind from the E. It’s setting up for another excellent day for the more experienced amongst us.
The true standouts here are the morning of Sunday the 23rd of August and the afternoon of Tuesday the 25th of August. Both have that winning combo of big, powerful swell and perfect wind. That 25th afternoon with the 21-second period is something special. Get it while it’s hot.
Stay stoked.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Mon afternoon, min 13°C on Tue morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Sat afternoon, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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 | WSW 13 | SW 13 | SW 12 | SSW 13 | SW 12 | SSW 12 | SW 12 | SSW 12 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 12 | SW 12 | SSW 12 |
Wave Graph | |||||||||||||||||||
1049 | 642 | 599 | 637 | 1042 | 1180 | 980 | 795 | 718 | 849 | 1891 | 1581 | 722 | 604 | 450 | 340 | 527 | 978 | 972 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | off | cross | cross | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | glassy | cross-on | off |
High Tide | 5:56AM1.35m | 6:13PM1.45m | 6:31AM1.23m | 6:48PM1.31m | 7:09AM1.12m | 7:28PM1.17m | 8:00AM1.00m | 8:28PM1.05m | 9:38AM0.93m | 10:23PM0.99m | 11:53AM0.96m | 00:09AM1.05m | |||||||
Low Tide | 11:56PM0.20m | 11:55AM0.25m | 00:29AM0.31m | 12:27PM0.38m | 1:05AM0.43m | 1:02PM0.51m | 1:50AM0.55m | 1:51PM0.63m | 3:13AM0.64m | 3:46PM0.71m | 5:32AM0.63m | 6:06PM0.67m | |||||||
— | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | |
6:14 | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:19 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 19 | 15 | 15 | 17 | 13 | 14 | 16 | 13 | 15 | 16 | 13 | 14 | 17 | 12 | 16 | 18 | 15 |
Feels °C | 12 | 14 | 16 | 15 | 13 | 14 | 9 | 12 | 15 | 12 | 12 | 12 | 9 | 11 | 14 | 9 | 15 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | WSW 13 | SW 13 | SW 12 | SSW 13 | SW 12 | SSW 12 | SW 12 | SSW 12 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 12 | SW 12 | SSW 12 |
1049 | 642 | 599 | 637 | 666 | 1180 | 980 | 795 | 718 | 849 | 1891 | 1581 | 722 | 604 | 450 | 311 | 527 | 978 | 972 | |
Swell 2 Height (m) Direction Period (s) | — | — | SW 16 | SW 14 | SW 12 | — | — | — | — | — | — | SW 12 | — | WSW 11 | WSW 11 | WSW 11 | — | SW 14 | WSW 14 |
— | — | 42 | 308 | 1042 | — | — | — | — | — | — | 149 | — | 517 | 427 | 340 | — | 424 | 74 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | — | — | — | — | ESE 4 | — | — | — | — | — | ESE 4 | SE 4 | SSE 4 | — | N 2 | — | — |
— | 2 | — | — | — | — | 7 | — | — | — | — | — | 9 | 20 | 13 | — | 1 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 4 | 18 | 29 | 0 | 0 | 365 | 0 | 10 | 19 | 0 | 5 | 365 | 0 | 5 | 15 | 0 | 0 | 18 | 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.











