Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 1 pm 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 7PM is: 0.8m 10s primary swell from a East direction and 0.5m 11s secondary swell from a South direction (forecast issued at 01:00pm July 18). An open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

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 27°C on Sat afternoon, min 18°C on Sun night). Winds decreasing (fresh winds from the S on Mon morning, calm by Mon night).

Sat
18
Sunday
19
Monday
20
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)
0
1
1
2
2
2
0
0
0
0
1
1
2
3
3
2
0
0
1
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
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
1.8
SSE
12
2
SSE
12
1.9
SSE
12
Wave Graph
Metric surfscale
Energy kJ
160
151
151
117
146
225
273
419
684
298
920
861
872
933
933
986
1030
1000
1032
1173
1039
Wind (km/h)
20
N
20
NNE
20
NNE
15
NNE
10
N
5
W
15
SSW
20
S
20
S
20
S
20
SSE
10
SSE
5
SSW
10
SW
10
SW
20
SSW
30
S
25
SSE
20
SSE
15
SE
10
SE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
on
on
High Tide
6:34PM2.10m
6:43AM1.93m
7:10PM1.97m
7:19AM1.79m
7:48PM1.81m
Low Tide
12:16PM0.11m
00:41AM0.30m
12:52PM0.23m
1:18AM0.43m
1:29PM0.39m
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
24
27
25
24
22
20
19
20
23
24
22
21
21
19
18
19
22
23
21
21
21
Feels °C
20
23
22
24
23
20
18
19
21
23
21
22
23
20
18
18
18
20
19
20
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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