Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 1 am 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
22.6°C
0.5° 

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 (03 Sep):

  • Morning surf: Morning surf (03 Sep, local time) - 2ft (0.6m), 16s period with S swell.
  • Afternoon surf: Afternoon surf (03 Sep, local time) - 1.5ft (0.5m), 15s period with S swell.
  • Evening surf: Evening surf (03 Sep, local time) - 6ft (1.9m), 6s period with NE swell.

The current surf forecast for Kosi Bay at 4AM is: 0.6m 17s primary swell from a South direction and 0.6m 8s secondary swell from a East direction, 1.3m 6s secondary swell from a Northeast direction (forecast issued at 01:00am September 03). The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (03 Sep)2ft (0.6m)16s
Afternoon (03 Sep)1.5ft (0.5m)15s
Evening (03 Sep)6ft (1.9m)6s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Fri night. Warm (max 28°C on Thu afternoon, min 18°C on Sat morning). Mainly strong winds.

Thursday
3
Friday
4
Saturday
5
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
1
1
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
S
17
0.6
S
17
0.7
S
17
0.6
S
16
0.5
S
15
0.4
SSW
15
1.8
NE
6
2.1
NE
6
1.4
ENE
7
1.9
NE
7
1.4
NE
7
1.1
NE
7
1.7
S
5
3.5
S
8
4.5
S
10
4
S
10
4
S
10
4
S
10
3.5
SSE
10
3.5
SSE
10
3
SSE
10
3
SSE
10
2.4
SSE
10
2.1
SSE
10
Wave Graph
Metric surfscale
Energy kJ
151
217
270
183
116
71
239
328
168
314
189
118
160
1842
3484
3421
3196
3060
2509
2038
1601
1419
1094
811
Wind (km/h)
20
N
20
N
25
N
30
N
30
NNE
30
NE
30
NE
30
NNE
25
N
15
N
15
S
20
SSE
40
S
45
S
45
S
40
S
40
S
40
S
35
SSE
30
SSE
30
SSE
25
SSE
25
SSE
20
SSE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
High Tide
6:45AM1.82m
7:10PM1.78m
7:26AM1.61m
8:02PM1.54m
8:37AM1.39m
10:08PM1.35m
Low Tide
00:43AM0.36m
12:56PM0.39m
1:23AM0.56m
1:42PM0.61m
2:24AM0.78m
3:12PM0.84m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
5:58
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:36
5:37
 mm
1
1
1
1
Temp °C
22
22
24
27
28
25
23
23
23
22
22
24
23
21
20
19
19
19
18
19
19
19
18
18
Feels °C
21
18
19
22
22
21
19
20
19
19
20
23
18
15
14
13
13
13
12
14
14
15
15
15
  • 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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