Koeel Bay Surf Break

Lat Long: 34.21° S 18.83° E

Koeel Bay Surf Forecast and Surf Report

Issued: 1 pm 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Koeel Bay sea temperature is
14.4° 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 10 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 11AM (local time) - 4.5ft (1.3m), 18s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 11 Aug, 2AM (local time) - 7.5ft (2.3m), 13s period, S swell with 1,866 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 11PM (local time) - 2.5ft (0.8m), 22s 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 Tuesday (Aug 11) at 11PM. The primary swell is predicted to be 0.8m and 22s period with a secondary swell of 0.8m and 11s. Another secondary swell of 1.4m and 8s 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 2.3m 13s and forecast to arrive on Tuesday (Aug 11) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Thursday (Aug 13) at 2AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 11th Aug)2.5ft (0.8m) 22s
Best Surf11AM (Wed 12th Aug)4.5ft (1.3m) 18s
Most Powerful 2AM (Tue 11th Aug)7.5ft (2.3m) 13s

Table - best surf conditions forecast for Koeel Bay over the next 16 days.


The Lowdown

Alright, this is Rusty comin' to you from Koeel Bay. Let’s have a look at what’s in store.

Right now, the surf is pretty average, but there are a couple of moments that will get the heart pumping. The water temp here is 58°, which is a bit colder than normal for this time of year, so you’ll want a decent wetsuit.

Monday the 10th kicks things off with a solid 8ft swell from the S, period at 10 seconds. The wind is a fresh offshore from the SE at 19 mph, so it’ll be clean, but the call says it’s marginal – maybe a little bumpy from the wind strength or tricky tide. The combined swell energy is strong at 1609. Not a total write-off, but maybe not the pick of the week.

Tuesday the 11th is still clean with offshore winds, but the swell drops to 6ft on the morning and then fades further. Energy stays high on the morning (1685) but then halves in the arvo. Not the best.

Now, Wednesday the 12th is where we get a standout. Morning sees a 4ft SW groundswell with a long 18-second period. The wind is light cross-off from the ENE at 6 mph, and by the afternoon it goes glassy with a NNE breeze at 0 mph. The energy is through the roof – 1815 in the morning, 1513 in the arvo. This is proper quality. The long period means the reef will shape it up nicely, and with that glass, you’re looking at the best session of the stretch. This is your call.

Thursday the 13th still has the same 4ft to 5ft SW groundswell, period dropping slightly to 16-18 seconds, but the wind gets a bit cross or cross-off. Still clean enough, but not as perfect as Wednesday. Energy remains moderate-strong.

Friday the 14th and Saturday the 15th see the swell drop to 3ft to 4ft. Periods stay long (13-15 seconds), and winds are light or glassy in the mornings. These are small but clean windows for a log or a fish.

Sunday the 16th is a write-off. Swell tiny, cross-onshore winds, poor conditions.

Monday the 17th brings a pulse back: 5ft to 5ft SW swell with a 14-16 second period. Offshore ESE winds at 6 to 9 mph. Clean and solid – another good day. Energy is strong (1284).

Tuesday the 18th turns ugly again – onshore and cross-onshore winds with moderate breeze, choppy. Skip it.

Wednesday the 19th: morning glass with a 6ft SW swell, 14-second period. Energy is strong (1139). That morning session will be real good for experienced surfers. Arvo gets a moderate cross-off breeze.

Thursday the 20th brings the biggest swell of the forecast: 8ft from the SSE, but only 9-second period. Winds are fresh offshore from the ESE at 22 mph. The energy is high (1195), but that short period and size means it’s only for experts. The water’s going to be lumpy.

From Friday the 21st through Saturday the 22nd, it gets messy or tiny. Sunday the 23rd sees a return of 5ft to 6ft SW swell with offshore winds, but the call says marginal.

Monday the 24th is another absolute beauty. Morning glass with a 5ft SW swell, 14-second period. Arvo is light offshore from the SE at 3 mph with a 5ft SSW swell, 16-second period. Energy is very strong (1490 and 1726). This is the second standout – clean, long-period groundswell, offshore or glassy. Perfect for the reef.

Tuesday the 25th finishes with a 5ft to 6ft SSW swell, onshore wind in the morning but cross-off in the arvo. Decent, but not the peak.

So, if you’re picking sessions, lock in Wednesday the 12th for the glassy, long-period goodness, and Monday the 24th for that same magic. Don’t sleep on those.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Thu morning, min 11°C on Mon night). Winds decreasing (fresh winds from the ESE on Tue afternoon, calm by Wed afternoon).

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Thu afternoon, min 14°C on Sun morning). Wind will be generally light.

Mon
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
3
1
3
4
4
3
3
3
1
2
2
1
2
1
1
0
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
S
10
2.3
S
13
1.9
S
12
1.2
SSW
11
1
SW
22
1.3
SW
18
1.3
SW
18
1.3
SW
16
1.5
SW
18
1.3
SW
16
1.1
SW
16
1.1
SW
15
1.1
SW
15
1
SW
14
0.9
SW
13
0.9
SW
13
0.9
SW
14
0.9
SW
14
0.9
SW
14
1.2
SW
13
Wave Graph
Metric surfscale
Energy kJ
1045
1866
1031
349
906
1101
985
844
1327
943
619
479
472
357
295
245
280
297
297
494
Wind (km/h)
30
ESE
25
ESE
30
E
35
ESE
20
E
10
ENE
5
NNE
20
E
10
NNE
10
E
15
NNE
5
NNW
10
S
10
NNW
5
N
10
S
10
NW
15
NNW
10
WSW
10
E
Wind State
off
off
off
off
off
cross-off
glassy
cross-off
cross
cross-off
cross
glassy
cross-off
cross-on
glassy
cross-off
cross-on
cross-on
cross-on
off
High Tide
2:02AM1.47m
2:31PM1.54m
2:48AM1.55m
3:14PM1.65m
3:30AM1.59m
3:53PM1.71m
4:09AM1.58m
4:30PM1.72m
4:46AM1.53m
5:05PM1.67m
5:21AM1.45m
5:39PM1.58m
Low Tide
7:58PM0.24m
8:22AM0.11m
8:46PM0.12m
9:03AM0.03m
9:29PM0.05m
9:41AM-0.01m
10:09PM0.02m
10:17AM-0.00m
10:47PM0.04m
10:51AM0.05m
11:22PM0.10m
11:23AM0.14m
11:56PM0.20m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:26
7:26
7:24
7:24
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:09
6:10
6:12
6:12
6:13
6:14
6:14
 mm
Temp °C
14
12
14
17
13
16
20
19
23
25
21
23
21
19
19
21
18
18
21
17
Feels °C
7
7
8
11
8
14
18
15
21
22
20
21
18
18
18
19
17
14
18
16
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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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