Koeel Bay Surf Break

Lat Long: 34.21° S 18.83° E

Koeel Bay Surf Forecast and Surf Report

Issued: 7 am 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Koeel Bay sea temperature is
14.6°C
1.0° 

Koeel Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Koeel Bay surf forecast from 5 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 2,121 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 0.4m and 9s. Another secondary swell of 1.3m 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 offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Thursday (Sep 10) at 5PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Sun 6th Sep)5.5ft (1.7m) 18s
Best Surf11AM (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

Alright, Rusty here. Let’s break down what’s on the table at Koeel Bay over the coming weeks. The water temp is sitting at a notable 58°, a good degree colder than what’s normal for this time of year, so you’ll want a thick wetsuit.

Saturday the 5th is a write-off. The swell is there at 6 ft to 6 ft from the SE, but it’s a short-period, messy 7 seconds with fresh offshore wind that just can’t organise itself. Poor surf.

We don’t really get going until Sunday morning the 6th. That’s your first real standout. A solid 6 ft groundswell from the SSW, with a very long period of 18 seconds, packing a huge amount of energy (1906). The wind is a moderate offshore from the east, which will keep things clean. This is prime Koeel Bay. That long period will push in with proper power, absolutely best for the reef setup here. Expect excellent conditions for experienced surfers. The afternoon drops a touch to 5 ft but stays clean and very good.

Monday the 7th is a mixed bag – the swell holds around 4 ft from the SSW, winds get light, but the morning is tricky with an onshore. The afternoon cleans up with a light cross-off breeze and clean surf, giving you another decent session.

Tuesday the 8th sees the swell drop off. Only 3 ft to 2 ft, but it goes glassy in the morning. If you’re desperate for a longboard, you can get a wave, but it’s nothing to get excited about.

We’ve got a quiet spell from Wednesday the 9th through to Friday the 11th. The swell stays small and the winds aren’t ideal. Thursday the 10th morning does bring a jump in energy – 6 ft from the SW at 16 seconds (1761 energy) – and gentle offshore wind, but it’s flagged as having questionable tide conditions. Worth a look if you can read the bank.

Friday the 11th afternoon is marginal with a 7 ft SE windswell at a dismal 6-second period. That’s short and bumpy, not recommended for paddle surfing.

Saturday the 12th and Sunday the 13th have decent sized groundswell but poor winds. Saturday’s offshore is fresh and clean, but the surf is marginal. Sunday swings onshore and blows out.

Monday the 14th and Tuesday the 15th are flat and poor. Tuesday the 15th sees a near gale from the north at 31 mph – completely blown out. Not worth your time.

Wednesday the 16th offers a promising get-out – the swell builds again to 6 ft from the SW, moderate offshore wind from the SE, and clean. The energy is very strong (1347). Still marginal according to the numbers, but that looks like a solid session for the crew who don’t mind a bit of sweep.

Now, marking your calendar for Thursday the 17th – another true standout. Morning sees a 7 ft SSE swell, short period at 9 seconds, but the combined energy is very strong (1446). The wind is light and cross-off from the east, making the surf clean. This is big enough to be expert-only territory. The afternoon cleans up further with a glassy, clean 4 ft SSW groundswell for the more relaxed surfer.

The final week is mostly poor. Friday the 18th and Saturday the 19th are crossed up and messy. Sunday the 20th is a monster – an 12 ft SW swell, 14-second period, with incredible energy (7643). But the wind is cross-onshore and it’s flagged as too big for this break. That is expert-only, maybe even more suited to a tow-in or a kite session. The setup looks more interesting for kite surfing than paddle surfing. Not for the faint-hearted.

To sum it up: Sunday the 6th and Thursday the 17th are your best bets. Sunday has the long-period groundswell perfection. Thursday is the big, clean paddle-in session for the experts.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Mon afternoon, min 11°C on Sat morning). Winds decreasing (fresh winds from the ESE on Sat afternoon, calm by Mon night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Tue afternoon, min 14°C on Wed night). Winds increasing (calm on Tue afternoon, fresh winds from the SE by Thu night).

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
4
3
3
2
3
2
1
1
1
0
0
2
4
1
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
SE
7
1.9
SE
7
1.3
SSW
21
1.7
SSW
18
1.4
SSW
16
1.3
SSW
15
1.3
SSW
14
1.3
SSW
13
1.2
SSW
12
0.8
S
11
0.6
SW
11
0.4
SW
15
0.6
SW
13
0.6
SW
13
0.8
SW
16
1.9
SW
16
1.6
SW
15
1.4
SW
14
1.2
SW
13
1.1
SW
12
0.8
SSW
15
Wave Graph
Metric surfscale
Energy kJ
284
344
1498
1702
969
656
662
569
387
146
96
75
109
106
326
1761
1011
725
466
326
275
Wind (km/h)
35
ESE
40
ESE
35
ESE
20
E
20
ESE
15
E
5
WNW
10
S
10
ENE
5
NW
10
S
5
SSE
20
S
25
SSE
20
ESE
15
SE
30
SE
30
SE
30
SE
35
SE
35
ESE
Wind State
off
off
off
off
off
cross-off
on
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
off
off
off
off
High Tide
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
3:26PM1.73m
3:44AM1.58m
Low Tide
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
9:16AM0.01m
9:44PM-0.01m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:58
6:56
6:56
6:54
6:52
6:50
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:28
6:29
6:30
6:30
6:30
6:31
6:31
 mm
Temp °C
16
19
14
19
24
19
25
27
23
24
27
19
18
19
16
18
19
16
15
14
13
Feels °C
9
13
8
16
21
16
24
26
22
25
28
18
16
16
13
16
16
12
11
8
7
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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