Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 7 am 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
22.7°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 (25 Aug):

  • Morning surf: Morning surf (25 Aug, local time) - 3ft (0.9m), 9s period with SSE swell.
  • Afternoon surf: Afternoon surf (25 Aug, local time) - 1.5ft (0.5m), 17s period with S swell.
  • Evening surf: Evening surf (25 Aug, local time) - 2ft (0.6m), 16s period with S swell.

The current surf forecast for Kosi Bay at 12PM is: 0.9m 9s primary swell from a South-southeast direction and 0.4m 17s secondary swell from a South-southwest direction (forecast issued at 07:00am August 25). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (25 Aug)3ft (0.9m)9s
Afternoon (25 Aug)1.5ft (0.5m)17s
Evening (25 Aug)2ft (0.6m)16s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Wed night. Warm (max 23°C on Tue afternoon, min 18°C on Tue morning). Wind will be generally light.

Tuesday
25
Wednesday
26
Thursday
27
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
1
0
0
0
2
0
0
0
0
0
0
0
1
2
2
1
1
2
1
2
1
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)
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.4
SSW
17
0.5
S
16
0.6
S
16
0.7
S
17
0.7
SSW
18
0.7
SSW
17
0.7
SSW
17
0.7
SSW
16
0.7
S
19
0.9
S
18
1.2
S
18
1.6
S
18
2.1
S
18
2.1
S
17
1.9
S
16
1.7
S
15
1.6
S
14
1.4
S
14
1.3
S
13
1.2
S
13
Wave Graph
Metric surfscale
Energy kJ
149
119
119
96
137
193
297
322
311
286
276
358
544
952
1745
2715
2564
1817
1258
1014
704
595
499
Wind (km/h)
15
N
20
NNW
20
N
25
NNE
20
NE
15
ENE
5
SSW
15
S
20
SSW
15
S
20
S
20
SSE
20
SE
20
SE
15
SE
10
SE
10
ESE
15
E
20
ENE
20
ENE
20
ENE
20
NE
20
NE
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross
glassy
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross
cross
cross
cross
High Tide
2:51PM1.75m
3:01AM1.84m
3:18PM1.94m
3:27AM1.99m
3:44PM2.10m
Low Tide
8:41AM0.50m
8:54PM0.46m
9:07AM0.33m
9:21PM0.30m
9:33AM0.18m
9:48PM0.17m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
cloud
cloud
cloud
light rain
light rain
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:31
5:31
5:32
 mm
1
1
Temp °C
18
18
22
23
21
21
20
19
19
20
21
21
21
21
21
21
21
20
20
21
20
20
20
Feels °C
17
16
20
20
19
20
21
19
18
19
19
19
19
20
20
20
21
19
18
19
17
17
18
  • 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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