Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 1 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
23.7° C
1.4° 

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 (18 Jul):

  • Morning surf: Morning surf (18 Jul, local time) - 3.5ft (1.0m), 10s period with E swell.
  • Afternoon surf: Afternoon surf (18 Jul, local time) - 3ft (0.9m), 10s period with E swell.
  • Evening surf: Evening surf (18 Jul, local time) - 2.5ft (0.8m), 10s period with E swell.

The current surf forecast for Kosi Bay at 4AM is: 1.0m 10s primary swell from a East direction and 0.2m 16s secondary swell from a South direction (forecast issued at 01:00am July 18). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (18 Jul)3.5ft (1.0m)10s
Afternoon (18 Jul)3ft (0.9m)10s
Evening (18 Jul)2.5ft (0.8m)10s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Sat afternoon, min 18°C on Sat morning). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
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)
1
1
1
0
1
0
2
2
2
0
0
0
0
1
1
2
2
3
2
0
0
0
1
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)
1.1
E
10
1
E
10
1
E
10
0.9
ESE
10
0.9
E
10
0.9
E
10
0.8
E
10
0.6
S
14
0.8
S
13
0.9
S
13
0.9
SSE
15
1.3
S
14
1
S
12
1.7
SSE
12
1.7
SSE
12
1.8
SSE
12
1.8
SSE
12
1.8
SSE
12
1.8
SSE
12
1.9
SSE
12
1.8
SSE
12
2.1
SSE
12
2
SSE
12
1.8
SE
12
Wave Graph
Metric surfscale
Energy kJ
235
196
196
160
151
151
117
146
225
273
419
684
298
920
861
872
918
933
1003
1030
934
1237
1135
933
Wind (km/h)
15
N
15
NNW
20
NNW
20
N
20
NNE
20
NE
15
NE
5
NNE
0
WNW
10
SSW
20
S
20
S
20
S
20
SSE
15
SSE
10
S
10
SSW
15
SSW
15
SSW
25
S
25
SSE
20
SSE
15
SE
10
SE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
glassy
glassy
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross
cross
cross
cross-on
cross-on
on
on
on
High Tide
6:07AM2.04m
6:34PM2.10m
6:43AM1.93m
7:10PM1.97m
7:19AM1.79m
7:48PM1.81m
Low Tide
00:03AM0.19m
12:16PM0.11m
00:41AM0.30m
12:52PM0.23m
1:18AM0.43m
1:29PM0.39m
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:13
5:14
5:14
 mm
Temp °C
20
19
18
24
26
24
23
22
21
20
20
23
23
22
21
21
19
19
19
22
22
22
22
21
Feels °C
19
17
14
20
22
21
23
24
24
21
19
22
22
21
21
22
19
19
18
19
19
19
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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