Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 7 am 19 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 (19 Jul):

  • Morning surf: Morning surf (19 Jul, local time) - 3.5ft (1.0m), 15s period with SSE swell.
  • Afternoon surf: Afternoon surf (19 Jul, local time) - 3.5ft (1.0m), 12s period with S swell.
  • Evening surf: Evening surf (19 Jul, local time) - 6ft (1.8m), 12s period with SSE swell.

The current surf forecast for Kosi Bay at 12PM is: 1.3m 14s primary swell from a South direction and 0.7m 10s secondary swell from a East direction, 0.5m 3s secondary swell from a South direction (forecast issued at 07:00am July 19). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (19 Jul)3.5ft (1.0m)15s
Afternoon (19 Jul)3.5ft (1.0m)12s
Evening (19 Jul)6ft (1.8m)12s

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


Short Range Forecast

Mostly dry. Warm (max 24°C on Sun afternoon, min 17°C on Tue morning). Winds decreasing (fresh winds from the S on Mon afternoon, calm by Tue morning).

Sunday
19
Monday
20
Tuesday
21
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
1
0
0
0
2
3
4
4
3
1
0
0
0
2
3
2
2
3
1
0
1
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)
0.9
S
13
0.9
SSE
15
1.3
S
14
1
S
12
1.6
S
12
1.8
SSE
12
1.9
SSE
12
1.8
SSE
12
1.8
SSE
12
1.9
SSE
12
2
SSE
12
1.9
SSE
12
1.8
SSE
12
1.8
SSE
12
1.8
SE
12
1.9
SSE
12
1.8
SE
12
1.7
SE
12
1.7
SE
12
1.6
SE
12
1.6
SE
12
1.6
SE
12
1.6
SE
12
Wave Graph
Metric surfscale
Energy kJ
273
419
684
298
799
960
969
933
970
1030
1132
1116
1032
1016
948
1039
933
836
822
734
666
655
655
Wind (km/h)
5
WNW
15
SSW
20
S
20
SSE
20
SSE
10
SE
5
S
10
WSW
10
WSW
10
SW
15
S
30
S
30
S
20
SSE
15
S
15
SW
15
SW
10
SW
5
ESE
10
E
15
ENE
15
ENE
10
NE
Wind State
glassy
cross-on
cross-on
cross-on
on
on
cross-on
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
glassy
cross-on
cross-on
cross-on
cross
High Tide
6:43AM1.93m
7:10PM1.97m
7:19AM1.79m
7:48PM1.81m
7:58AM1.64m
8:30PM1.64m
Low Tide
12:52PM0.23m
1:18AM0.43m
1:29PM0.39m
1:58AM0.58m
2:09PM0.56m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:14
5:14
5:15
 mm
Temp °C
18
18
23
24
23
22
21
19
18
18
22
23
22
22
20
19
18
17
20
22
21
21
21
Feels °C
18
17
22
23
23
22
22
20
19
19
21
20
19
20
19
18
17
17
21
22
20
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

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