Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 1 am 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
23.6° 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 (17 Jul):

  • Morning surf: Morning surf (17 Jul, local time) - 4.5ft (1.3m), 10s period with ESE swell.
  • Afternoon surf: Afternoon surf (17 Jul, local time) - 4ft (1.2m), 10s period with ESE swell.
  • Evening surf: Evening surf (17 Jul, local time) - 3.5ft (1.1m), 10s period with ESE swell.

The current surf forecast for Kosi Bay at 7AM is: 1.3m 10s primary swell from a East-southeast direction and 0.3m 9s secondary swell from a South-southwest direction (forecast issued at 01:00am July 17). The wind direction is predicted to be offshore and the swell rating is 2.

Time (SAST) & DateWave HeightWave Period
Morning (17 Jul)4.5ft (1.3m)10s
Afternoon (17 Jul)4ft (1.2m)10s
Evening (17 Jul)3.5ft (1.1m)10s

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


Short Range Forecast

Mostly dry. Warm (max 25°C on Sat afternoon, min 17°C on Fri morning). Wind will be generally light.

Friday
17
Saturday
18
Sunday
19
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)
2
2
2
2
1
0
2
2
2
2
2
0
1
1
1
2
2
2
2
0
0
0
2
2
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
ESE
10
1.4
ESE
10
1.3
ESE
10
1.3
ESE
10
1.2
ESE
10
1.1
ESE
10
1.1
ESE
10
1.1
E
10
1.1
E
10
1
E
10
1
E
10
0.9
ESE
10
0.9
E
10
0.9
E
10
0.9
E
10
0.6
S
14
0.8
S
13
1
S
13
0.9
SSE
16
1.1
SSE
16
1.1
SSE
15
1.6
SSE
14
2
SSE
13
1.9
SSE
13
Wave Graph
Metric surfscale
Energy kJ
365
358
301
301
288
245
240
231
235
196
196
160
151
151
148
146
225
347
348
620
498
1016
1299
1086
Wind (km/h)
10
WNW
10
WNW
10
NW
15
N
15
NNE
20
NE
15
NNE
15
N
15
NNW
15
NNW
15
NNW
15
N
20
NNE
20
NNE
15
NE
10
NNE
10
N
10
NW
15
SSW
20
SSW
20
S
20
SSE
15
SSE
10
S
Wind State
cross-off
off
off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
5:31AM2.12m
5:56PM2.18m
6:07AM2.04m
6:34PM2.10m
6:43AM1.93m
7:10PM1.97m
Low Tide
11:25PM0.12m
11:39AM0.04m
00:03AM0.19m
12:16PM0.11m
00:41AM0.30m
12:52PM0.23m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
<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
5:13
5:14
 mm
Temp °C
19
18
17
21
23
22
22
21
20
19
18
23
25
23
23
22
21
19
18
22
24
22
22
20
Feels °C
19
18
17
20
21
20
21
20
20
18
16
20
21
20
23
23
21
18
18
21
23
21
22
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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