Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 1 pm 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
23.0°C
0.8° 

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


How big are the waves at Kosi Bay today (15 Sep):

  • Morning surf: Morning surf (15 Sep, local time) - 7.5ft (2.3m), 8s period with ENE swell.
  • Afternoon surf: Afternoon surf (15 Sep, local time) - 6.5ft (2.0m), 9s period with E swell.
  • Evening surf: Evening surf (15 Sep, local time) - 8ft (2.5m), 10s period with ENE swell.

The current surf forecast for Kosi Bay at 1AM is: 2.0m 8s primary swell from a East direction and 0.3m 16s secondary swell from a South-southwest direction (forecast issued at 01:00pm September 14). An open ocean swell of 1.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (15 Sep)7.5ft (2.3m)8s
Afternoon (15 Sep)6.5ft (2.0m)9s
Evening (15 Sep)8ft (2.5m)10s

Table - waves today at Kosi Bay. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 28°C on Wed afternoon, min 20°C on Wed night). Winds increasing (light winds from the NNE on Tue night, strong winds from the S by Wed night).

Mon
14
Tuesday
15
Wednesday
16
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
1
2
2
1
1
0
2
4
4
3
2
1
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
E
6
1.2
NE
6
1.5
E
8
1.9
E
8
1.8
ESE
8
2
E
8
2.1
E
8
2.3
ENE
8
2
E
9
2
E
9
2.4
ENE
9
2.5
ENE
10
2.5
ENE
10
2.3
E
10
2.2
E
10
2.1
E
10
2
E
10
2
E
10
2
E
10
2
E
10
1.7
E
10
Wave Graph
Metric surfscale
Energy kJ
55
92
270
466
394
482
555
686
582
635
938
1083
1155
1055
976
873
792
799
786
776
557
Wind (km/h)
25
NNE
25
NNE
25
NE
30
NE
30
NE
25
NNE
20
NNW
25
N
25
NNE
30
NNE
25
NE
25
NE
10
NNE
10
NNE
15
N
20
N
25
NNE
30
NE
30
NE
15
S
40
S
Wind State
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
High Tide
5:22PM2.21m
5:32AM2.08m
5:47PM2.06m
5:57AM1.93m
6:11PM1.88m
Low Tide
11:12AM0.01m
11:29PM0.12m
11:38AM0.14m
11:54PM0.25m
12:04PM0.30m
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:46
5:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:40
5:40
 mm
Temp °C
23
23
22
22
22
22
21
21
23
24
23
22
22
22
21
22
27
28
24
23
21
Feels °C
21
21
20
19
19
20
20
19
20
20
20
21
24
24
21
20
24
25
22
24
16
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kosi Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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