Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 7 am 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
23.7° C
1.3° 

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 (10 Jul):

  • Morning surf: Morning surf (10 Jul, local time) - 3.5ft (1.0m), 13s period with S swell.
  • Afternoon surf: Afternoon surf (10 Jul, local time) - 4.5ft (1.3m), 17s period with S swell.
  • Evening surf: Evening surf (10 Jul, local time) - 5.5ft (1.7m), 15s period with S swell.

The current surf forecast for Kosi Bay at 11AM is: 1.0m 13s primary swell from a South direction and 0.6m 7s secondary swell from a East direction (forecast issued at 07:00am July 10). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (SAST) & DateWave HeightWave Period
Morning (10 Jul)3.5ft (1.0m)13s
Afternoon (10 Jul)4.5ft (1.3m)17s
Evening (10 Jul)5.5ft (1.7m)15s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sat night. Warm (max 23°C on Fri afternoon, min 17°C on Sun morning). Wind will be generally light.

Friday
10
Saturday
11
Sunday
12
Mon
13
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
2 AM
Rating
(10 max)
2
2
2
2
2
3
4
4
2
2
2
1
2
2
2
2
2
2
3
0
0
1
1
1
Swell
Height Map
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)
1
S
14
1
S
13
1
S
13
1.1
S
17
1.5
S
16
1.7
S
16
1.7
S
15
1.6
S
15
1.5
S
14
1.4
S
14
1.3
S
13
1.3
S
13
1.2
S
13
1.2
S
12
1.2
S
12
1.2
S
14
1.3
S
13
1.3
S
13
1.3
S
12
1.2
S
12
1.2
S
12
1.1
S
12
0.9
S
12
1.1
S
11
Wave Graph
Metric surfscale
Energy kJ
377
355
361
717
1178
1398
1310
1087
905
747
609
591
480
444
430
565
599
555
518
420
409
333
216
311
Wind (km/h)
5
WSW
10
NW
10
N
20
NNE
20
NE
15
ENE
5
NNE
10
WSW
10
SW
10
SW
5
S
10
ESE
10
E
10
ESE
0
SSW
10
SW
10
SW
10
SW
5
S
10
ESE
15
SE
10
SE
10
SW
15
SSW
Wind State
cross-off
off
cross-off
cross-off
cross
cross
glassy
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
glassy
cross
cross
cross
glassy
on
on
on
cross
cross
High Tide
11:45AM1.49m
00:33AM1.68m
1:10PM1.60m
1:45AM1.79m
2:15PM1.76m
Low Tide
5:33AM0.70m
5:58PM0.63m
6:57AM0.60m
7:19PM0.52m
8:02AM0.46m
8:23PM0.37m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
clear
part cloud
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:37
6:37
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:09
5:09
5:09
5:10
 mm
1
1
Temp °C
19
19
21
23
21
22
21
19
18
18
21
22
21
21
20
18
18
17
20
22
21
21
20
18
Feels °C
20
19
20
20
17
20
21
18
17
18
22
22
21
21
21
17
18
17
21
21
20
21
20
17
  • 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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