Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 1 am 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
23.8° C
1.5° 

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 (21 Jul):

  • Morning surf: Morning surf (21 Jul, local time) - 5.5ft (1.7m), 12s period with SE swell.
  • Afternoon surf: Afternoon surf (21 Jul, local time) - 5ft (1.6m), 12s period with SE swell.
  • Evening surf: Evening surf (21 Jul, local time) - 5ft (1.5m), 12s period with SE swell.

The current surf forecast for Kosi Bay at 8AM is: 1.7m 12s primary swell from a Southeast direction and 0.4m 9s secondary swell from a East direction (forecast issued at 01:00am July 21). The wind direction is predicted to be glassy and the swell rating is 3.

Time (SAST) & DateWave HeightWave Period
Morning (21 Jul)5.5ft (1.7m)12s
Afternoon (21 Jul)5ft (1.6m)12s
Evening (21 Jul)5ft (1.5m)12s

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


Short Range Forecast

Mostly dry. Warm (max 24°C on Thu afternoon, min 19°C on Tue morning). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
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)
3
3
3
2
0
1
0
2
3
3
3
3
1
0
2
1
1
1
1
0
0
0
1
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)
1.9
SSE
12
1.8
SE
12
1.7
SE
12
1.7
SE
12
1.6
SE
12
1.6
SE
12
1.5
SE
12
1.5
SE
12
1.4
SE
12
1.4
SE
12
1.3
SE
12
1.3
SE
12
1.2
SE
12
1.2
SE
12
1.2
SE
12
1.1
SE
12
1.1
SE
12
1
SE
12
1
SE
12
0.9
SE
12
0.8
SE
12
0.8
SE
12
0.8
SE
12
0.7
SE
12
Wave Graph
Metric surfscale
Energy kJ
1039
933
836
822
694
666
614
614
551
551
503
511
416
416
416
361
314
272
272
232
197
197
193
134
Wind (km/h)
5
SSW
10
SW
5
WSW
5
NE
15
ENE
20
ENE
20
ENE
15
ENE
10
NNE
5
NNW
10
NNW
15
NNE
25
NE
25
NE
20
NNE
20
NNE
20
N
20
N
20
N
25
N
25
NNE
25
NE
20
NNE
20
NNE
Wind State
cross-on
cross-off
glassy
cross
cross-on
cross
cross-on
cross
cross-off
cross-off
off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
High Tide
7:58AM1.64m
8:30PM1.64m
8:45AM1.48m
9:27PM1.48m
10:00AM1.35m
Low Tide
1:58AM0.58m
2:09PM0.56m
2:44AM0.72m
3:00PM0.73m
3:51AM0.84m
4:22PM0.85m
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:15
5:15
 mm
Temp °C
20
19
19
22
23
22
22
22
21
20
20
22
23
22
21
21
21
20
19
22
24
22
22
21
Feels °C
21
19
20
23
21
20
20
22
22
21
21
22
21
20
20
20
21
20
17
18
21
20
21
21
  • 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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