Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 1 pm 12 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
23.6° C
1.2° 

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 (12 Jul):

  • Morning surf: Morning surf (12 Jul, local time) - 4.5ft (1.4m), 13s period with S swell.
  • Afternoon surf: Afternoon surf (12 Jul, local time) - 4ft (1.2m), 12s period with S swell.
  • Evening surf: Evening surf (12 Jul, local time) - 4.5ft (1.3m), 12s period with S swell.

The current surf forecast for Kosi Bay at 5PM is: 1.3m 12s primary swell from a South direction and 0.4m 8s secondary swell from a East direction, 0.4m 8s secondary swell from a East direction (forecast issued at 01:00pm July 12). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (12 Jul)4.5ft (1.4m)13s
Afternoon (12 Jul)4ft (1.2m)12s
Evening (12 Jul)4.5ft (1.3m)12s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sun night. Warm (max 22°C on Tue afternoon, min 18°C on Sun night). Wind will be generally light.

Sun
12
Monday
13
Tuesday
14
Wed
15
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
5 AM
8 AM
Rating
(10 max)
0
0
0
0
2
0
0
1
0
0
1
1
1
2
2
2
3
2
1
2
2
3
3
3
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)
1.4
S
12
1.2
S
12
1.3
S
12
1.3
S
12
1.2
SSE
12
0.8
S
11
0.8
S
11
1.1
SE
7
1.2
SE
8
1.4
SE
8
1.3
SE
8
1.3
SE
8
1.3
SE
8
1.3
SE
8
1.2
SE
8
1.6
SE
10
1.8
SE
9
1.8
SE
9
1.9
SE
9
1.8
SE
9
1.8
ESE
9
1.8
ESE
10
1.8
ESE
10
1.9
ESE
10
Wave Graph
Metric surfscale
Energy kJ
604
420
480
472
404
166
160
121
169
215
205
205
186
181
164
428
573
515
574
551
584
609
603
678
Wind (km/h)
20
S
20
SSE
20
SSE
20
SE
10
SSE
10
SSW
10
SSW
15
SW
10
SSE
10
ESE
10
ESE
10
E
10
E
0
SE
5
W
5
W
5
NNE
15
NE
15
NE
15
NE
10
NE
10
NNE
10
N
10
N
Wind State
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-on
on
cross-on
cross-on
cross-on
glassy
cross-off
glassy
glassy
cross
cross
cross
cross
cross-off
cross-off
cross-off
High Tide
2:15PM1.76m
2:42AM1.92m
3:08PM1.93m
3:30AM2.03m
3:54PM2.08m
4:13AM2.11m
Low Tide
8:02AM0.46m
8:23PM0.37m
8:54AM0.30m
9:15PM0.24m
9:40AM0.16m
10:02PM0.14m
clear
part cloud
clear
clear
thunderstorm
thunderstorm
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:35
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:09
5:10
5:10
5:12
 mm
1
1
Temp °C
20
21
20
20
19
18
18
18
20
21
21
21
20
19
19
19
21
22
21
21
21
20
20
19
Feels °C
17
18
17
18
19
17
17
17
19
20
21
21
20
20
20
20
22
21
20
21
21
20
21
19
  • 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 

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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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