Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 7 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
23.2° C
1.0° 

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 (21 Aug):

  • Afternoon surf: Afternoon surf (21 Aug, local time) - 2.5ft (0.8m), 16s period with SSW swell.
  • Evening surf: Evening surf (21 Aug, local time) - 3ft (0.9m), 13s period with S swell.

The current surf forecast for Kosi Bay at 11PM is: 0.8m 13s primary swell from a South direction and 0.4m 8s secondary swell from a East direction, 0.4m 3s secondary swell from a Northeast direction (forecast issued at 07:00pm August 21). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (21 Aug)--
Afternoon (21 Aug)2.5ft (0.8m)16s
Evening (21 Aug)3ft (0.9m)13s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Sat afternoon, min 17°C on Sun night). Winds decreasing (fresh winds from the S on Sat night, light winds from the ESE by Mon morning).

Fri
21
Saturday
22
Sunday
23
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
1
1
0
1
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
Wave
Height (m)
Direction
Period (s)
0.8
SSW
14
0.9
S
13
0.8
S
13
0.6
S
9
0.6
S
10
0.7
S
11
0.6
S
11
0.6
S
11
0.5
S
10
0.5
S
10
0.4
SSW
16
2
S
6
3
S
8
3.5
S
9
3.5
S
9
3
S
9
2.5
S
10
2.2
S
9
1.8
S
9
Wave Graph
Metric surfscale
Energy kJ
254
285
212
59
67
114
82
79
53
49
84
247
866
1655
1879
1559
1198
828
541
Wind (km/h)
20
ENE
15
ENE
10
NE
10
NE
10
NNE
15
N
20
N
25
NNE
20
NNE
20
N
15
SSW
40
S
35
SSW
35
SSW
35
S
35
S
30
S
25
S
20
S
Wind State
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
9:14PM1.28m
11:22AM1.20m
00:56AM1.30m
1:42PM1.36m
Low Tide
2:39PM0.90m
4:16AM0.99m
6:07PM0.98m
7:24AM0.88m
7:46PM0.81m
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
 mm
Temp °C
21
21
21
20
20
20
24
27
26
24
23
20
19
19
21
21
20
20
20
Feels °C
21
22
23
22
21
20
23
24
24
23
23
15
14
14
15
16
16
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.


Nearest locationNearest