Surf Forecasts:
Koeel Bay surf forecast from 4 Sep 2026:
- Best quality surf: Sunday 6 Sep, 11AM (local time) - 5.5ft (1.7m), 18s period, SSW swell with offshore winds.
- Most powerful swell: Sunday 6 Sep, 8AM (local time) - 5.5ft (1.7m), 19s period, SSW swell with 1,920 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 11AM (local time) - 5.5ft (1.7m), 18s period with SSW 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 11AM. The primary swell is predicted to be 1.7m and 18s period with a secondary swell of 0.3m and 9s. Another secondary swell of 1.2m and 7s 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 19s and forecast to arrive on Sunday (Sep 06) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Friday (Sep 11) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 6th Sep) | 5.5ft (1.7m) 18s |
| Best Surf | 11AM (Sun 6th Sep) | 5.5ft (1.7m) 18s |
| Most Powerful | 8AM (Sun 6th Sep) | 5.5ft (1.7m) 19s |
Table - best surf conditions forecast for Koeel Bay over the next 16 days.
The Lowdown
Righto, Rusty here, checkin’ on what’s cookin’ at Koeel Bay for the next couple of weeks. It’s a reef break, gets decent swell exposure, breaks fairly consistent, and loves that southerly direction. Water temp’s 58°, a bit cooler than normal for this time of year — not ice, but you’ll notice it.
First couple days are a total wash. Friday the 4th has 8ft to 10ft swell from the SSE, but that 25 mph ESE wind, even blowin’ offshore, makes it a grunt to get into. Energy’s moderate (936-1013), but not worth the fight. Saturday the 5th is messy with 6ft SE swell, short period, and 22-25 mph winds — poor. Sunday the 6th finally turns on. The morning dishes up 6ft SSW groundswell with a very long 18-second period, light 9 mph offshore breeze, and strong energy (1871). That’s clean, powerful lines for the experienced crew — just expect longer waits between sets. Afternoon stays good with 5ft SSW swell, 16-second period, glassy 6 mph wind, and strong energy (1100).
Monday the 7th drops off, but the afternoon turns glassy with 4ft SSW swell, 13-second period, and light air. Energy’s moderate (746). Tuesday the 8th fades to 2-3ft SW swell, clean but super small.
The standout is Sunday the 6th morning — that 6ft SSW groundswell, 18-second period, light offshore wind, and strong energy (1871) is the session to circle. Clean, punchy, for intermediates and up.
Monday afternoon the 7th through Thursday the 10th sees cleaner conditions but size jumps around. Thursday the 10th rebuilds to 5ft SW swell, 15-second period, moderate southeast wind, energy at 1013. Solid, but not the best.
Saturday the 12th and Sunday the 13th bring strong 25-28 mph ESE winds, 6-8ft swell, and strong energy (1611-1972) — a paddle fight again. Monday the 14th morning has 8ft SE swell with moderate offshore 16 mph wind and strong energy (1250), but it’s marginal.
Tuesday the 15th and Wednesday the 16th are wrecked by NNW winds, cross-onshore, with 7-10ft S swell and strong energy (1542-2148) — kite and windsurf territory.
Second week’s best bet is Friday the 18th afternoon: 8ft SW swell, 14-second period, light 6 mph cross-offshore wind, and excellent surf for experienced surfers. Energy’s very strong (2000). That’s a looker, but it’s over a week out — worth watchin’. Saturday the 19th fades to 4-5ft SW swell, clean but small. Crowds can show up sometimes at Koeel Bay, so get out there early on the good days.
Signin’ off, Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sun afternoon, min 11°C on Fri night). Winds decreasing (strong winds from the ESE on Fri afternoon, light winds from the ENE by Sun night). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Mon afternoon, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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) | SSE 9 | SSE 8 | SE 8 | SE 7 | SE 7 | SW 21 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SW 11 | SW 14 | SW 13 | SW 13 | SW 12 | SW 14 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 928 | 980 | 469 | 381 | 371 | 1301 | 1702 | 969 | 711 | 672 | 577 | 393 | 233 | 97 | 72 | 108 | 100 | 116 | 911 | 1011 | 874 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | cross-off | on | glassy | glassy | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 2:52PM1.69m | 3:10AM1.58m | ||||||||
Low Tide | 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 | 8:43AM0.05m | 9:10PM0.01m | ||||||||
 | |  | | | | | | | | | | | | | | |  |  | | | |
 | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — |
 | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 18 | 13 | 16 | 20 | 15 | 20 | 26 | 23 | 25 | 26 | 21 | 22 | 23 | 22 | 20 | 20 | 16 | 18 | 17 | 15 |
Feels °C | 7 | 9 | 5 | 9 | 13 | 9 | 17 | 24 | 21 | 24 | 25 | 22 | 22 | 23 | 22 | 20 | 19 | 14 | 16 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 14 | SSW 13 | S 10 | SSW 10 | SW 21 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SW 11 | S 9 | SW 13 | SW 13 | SW 12 | SW 14 | SW 15 | SW 14 |
| kJ | 4 | 15 | 56 | 75 | 157 | 1301 | 1702 | 969 | 711 | 672 | 577 | 393 | 233 | 97 | 42 | 108 | 100 | 116 | 911 | 1011 | 874 |
Swell 2 Height (m) Direction Period (s) | S 15 | SSW 14 | SW 11 | SW 10 | WSW 9 | SSW 10 | SW 9 | S 12 | SE 6 | SSE 6 | SE 10 | SW 18 | SSW 16 | S 10 | SW 11 | S 8 | S 8 | SW 17 | SE 9 | S 9 | — |
| kJ | 4 | 18 | 18 | 15 | 9 | 61 | 13 | 3 | 34 | 14 | 137 | 12 | 25 | 71 | 41 | 22 | 12 | 76 | 3 | 2 | — |
Swell 3 Height (m) Direction Period (s) | — | — | S 11 | — | SSW 26 | SSW 12 | — | — | — | SSE 14 | SSE 13 | ESE 10 | SW 16 | SW 15 | SW 14 | S 11 | S 11 | SSE 8 | — | — | — |
| kJ | — | — | 9 | — | 64 | 15 | — | — | — | 19 | 32 | 65 | 66 | 35 | 72 | 2 | 2 | 6 | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 9 | SSE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | — | — | — | — | — | — | SSW 3 | SSW 3 | SSE 3 | — | — | S 5 |
| kJ | 928 | 980 | 469 | 381 | 371 | 336 | 156 | 128 | 279 | — | — | — | — | — | — | 1 | 1 | 1 | — | — | 34 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1493 | 216 | 48 | 48 | 48 | 47 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 15 | 35 | 0 | 0 | 5 | 15 | 186 |
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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