Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 7 pm 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
22.9° 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 (09 Aug):

  • Morning surf: Morning surf (09 Aug, local time) - 2.5ft (0.8m), 10s period with E swell.
  • Afternoon surf: Afternoon surf (09 Aug, local time) - 2.5ft (0.7m), 9s period with E swell.
  • Evening surf: Evening surf (09 Aug, local time) - 2.5ft (0.7m), 9s period with E swell.

The current surf forecast for Kosi Bay at 2AM is: 0.7m 10s primary swell from a East direction and 0.5m 5s secondary swell from a East direction (forecast issued at 07:00pm August 08). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (09 Aug)2.5ft (0.8m)10s
Afternoon (09 Aug)2.5ft (0.7m)9s
Evening (09 Aug)2.5ft (0.7m)9s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Tue afternoon. Warm (max 25°C on Sun afternoon, min 17°C on Tue afternoon). Winds increasing (light winds from the N on Sat night, strong winds from the SSW by Mon afternoon).

Sat
8
Sunday
9
Monday
10
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
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)
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
10
0.8
E
10
0.8
E
10
0.7
E
9
0.7
E
9
0.7
E
9
0.6
E
9
0.8
E
9
1
E
6
1.8
S
6
2.4
S
7
3.5
S
8
4.5
S
10
4.5
S
10
4.5
S
10
4
S
10
Wave Graph
Metric surfscale
Energy kJ
92
90
89
89
116
113
85
81
80
57
99
84
193
562
1763
3357
3992
3893
3196
Wind (km/h)
20
NE
20
NE
20
N
20
N
20
N
25
N
30
N
30
NNE
25
NE
30
NNE
20
NNE
30
S
35
S
40
SSW
45
SSW
50
SSW
50
S
45
S
40
S
Wind State
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
00:33AM1.52m
1:19PM1.53m
1:53AM1.69m
2:22PM1.76m
Low Tide
5:48PM0.77m
6:58AM0.72m
7:30PM0.61m
8:06AM0.51m
8:30PM0.41m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:23
5:23
5:24
 mm
1
1
1
Temp °C
21
20
20
19
18
18
23
25
24
22
22
20
20
19
19
18
18
18
18
Feels °C
19
18
18
17
15
14
18
20
21
19
22
17
15
13
11
10
10
10
11
  • 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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