Koeel Bay Surf Break

Lat Long: 34.21° S 18.83° E

Koeel Bay Surf Forecast and Surf Report

Issued: 7 am 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Koeel Bay sea temperature is
15.4°C
0.2° 

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 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 2AM (local time) - 5ft (1.6m), 15s period, SSW swell with offshore winds.
  • Most powerful swell: Wednesday 16 Sep, 2AM (local time) - 7ft (2.1m), 16s period, SW swell with 2,212 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 2AM (local time) - 4ft (1.2m), 13s 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 Friday (Sep 11) at 2AM. The primary swell is predicted to be 1.2m and 13s period with a secondary swell of 0.3m and 6s. 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 2.1m 16s and forecast to arrive on Wednesday (Sep 16) at 2AM. 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 Thursday (Sep 17) at 5AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 11th Sep)4ft (1.2m) 13s
Best Surf 2AM (Sun 13th Sep)5ft (1.6m) 15s
Most Powerful 2AM (Wed 16th Sep)7ft (2.1m) 16s

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


The Lowdown

Alright folks, Rusty here. Let's have a look at what Koeel Bay is cooking up for the next couple of weeks.

First things first, the water temp is sitting at 60°, which is pretty much bang on average for this time of year. No surprises there.

We’ve got a bit of a slow start to this run. Thursday morning is a write-off, to be honest. We’ve got a 5ft SW groundswell, but it’s coming in with a tricky south wind making it messy. The combined swell energy is moderate, sitting at 943, but the conditions just aren't there. Thursday afternoon is no better, so don't bother paddling out. Friday is technically offshore, with winds from the ESE, but that swell drops right off. The period is a short 7 seconds, so it’s just not going to have any shape.

Now, Saturday the 12th of September is where it starts to get interesting. The morning is clean with a moderate 4ft SSW groundswell, and those ESE offshore winds will have it looking nice. The energy jumps up to 985, which is solid. But the real standout is Saturday afternoon. The swell pulses up to 6ft from the SSW, the period stretches out to 17 seconds, and the wave energy skyrockets to a strong 1990. With offshore ESE winds, this is a serious session. The waves will be powerful with those long gaps between sets, making it a proper groundswell day. It’s a bit too big for beginners, but for the intermediates this is where it’s at.

Sunday the 13th holds clean conditions with a 4ft SSW swell in the morning, but it's a little smaller than Saturday. The offshore breeze is still there, keeping things tidy.

Then we hit a flat, blown-out patch. From Monday the 14th right through to Tuesday the 15th, a strong NNW wind smashes the place. The swell drops to nothing and it’s just a messy, cross-onshore mess. This is a kite-surfing wind, not a paddle-surfing one. Save your energy.

Wednesday the 16th is a redemption day. The morning shows a nice 7ft SSW groundswell, though it's a cross-off wind. The energy is a very strong 2053, so there's plenty of power. But the best conditions of this whole stretch look to be Wednesday afternoon. The swell drops slightly to a still-juicy 6ft from the SSW, the period is 13 seconds, and we get light S winds. The energy is still over 1200, and the comment says "very good surf conditions". That’s a winner.

The rest of the week has some clean moments. Friday the 18th looks glassy in the morning, with a small 5ft swell from the ESE. It’s short period (8s) and low energy (463), so it’s a fun little session rather than a charge.

Now looking into the second week, things get mixed. We have a potential standout on the 20th of September. Sunday afternoon sees a big 6ft SSW swell with a 17-second period and a massive energy reading of 3102. But it comes with a 30 km/h cross-off wind, so it'll be bumpy and challenging.

The absolute best bet for experienced surfers is Monday the 21st. The afternoon session has a solid 7ft SSW swell at 15 seconds, the energy is a huge 2090, and the winds are light. This is excellent surf, but at 7ft, it's strictly for the crew who know what they're doing. It might be too much for the weekend warrior.

We’re all done building up the swell by Wednesday the 23rd, and the last few days of the forecast are pretty poor. A few days of light winds and small swell show up on the 24th and 25th, but nothing that’s going to make you rush.

To call it: Saturday afternoon the 12th of September is the pick for the best all-around fun. Wednesday afternoon the 16th of September is the cleanest, best quality session. And for the big-wave hunters, Monday afternoon the 21st of September is the one to circle on the calendar.

Stay stoked.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 19°C on Fri afternoon, min 14°C on Thu night). Winds increasing (light winds from the SSE on Thu morning, fresh winds from the ESE by Sat night).

Days 4-6 Weather Summary

Heavy rain (total 44mm), heaviest during Tue night. Warm (max 20°C on Sun afternoon, min 12°C on Tue night). Winds increasing (light winds from the NW on Sun night, strong winds from the NW by Tue afternoon).

Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
1
1
1
2
3
4
3
2
0
0
0
0
0
0
4
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
SW
15
1.3
SW
14
1.2
SW
13
1.7
SSE
7
2.2
SSE
7
1.4
SE
7
1.3
SSW
15
1.7
SSW
17
1.6
SSW
15
1.3
SSW
14
1.1
SW
14
0.9
SW
13
0.7
SW
12
0.7
SW
12
0.6
SSW
12
0.5
SW
19
1.1
SW
17
2.1
SW
16
2.2
SSW
14
1.9
SSW
13
2.1
SSW
12
Wave Graph
Metric surfscale
Energy kJ
940
647
473
247
437
183
740
1714
1117
672
418
245
152
142
90
184
772
2212
2053
1253
1314
Wind (km/h)
15
SSE
20
S
20
SE
30
ESE
30
SE
25
ESE
25
ESE
30
ESE
25
ESE
20
E
15
ESE
20
NNW
40
NNW
35
NNW
30
NNW
45
NNW
45
NW
15
SSE
20
S
15
S
15
ESE
Wind State
cross-off
cross-off
off
off
off
off
off
off
off
off
off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
off
High Tide
2:52PM1.69m
3:10AM1.58m
3:26PM1.73m
3:44AM1.58m
3:59PM1.72m
4:16AM1.54m
4:30PM1.65m
4:48AM1.47m
5:00PM1.55m
5:18AM1.38m
5:30PM1.43m
5:48AM1.27m
6:00PM1.29m
Low Tide
8:43AM0.05m
9:10PM0.01m
9:16AM0.01m
9:44PM-0.01m
9:48AM0.02m
10:15PM0.02m
10:19AM0.07m
10:45PM0.08m
10:48AM0.15m
11:13PM0.18m
11:16AM0.26m
11:41PM0.29m
11:45AM0.38m
00:11AM0.42m
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
rain showers
heavy rain
rain showers
light rain
light rain
rain showers
part cloud
heavy rain
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:50
6:48
6:47
6:46
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:31
6:32
6:34
6:35
6:35
6:36
 mm
3
12
3
1
2
1
22
Temp °C
17
18
15
18
19
16
17
18
17
18
20
18
18
17
15
17
17
15
15
15
13
Feels °C
15
15
13
14
14
12
14
14
12
16
19
18
11
11
10
10
9
8
9
10
10
  • Map Icons:
  • Break
  • 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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