Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 7 pm 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
22.6°C
0.4° 

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 (09 Sep):

  • Morning surf: Morning surf (09 Sep, local time) - 5ft (1.5m), 10s period with E swell.
  • Afternoon surf: Afternoon surf (09 Sep, local time) - 5ft (1.6m), 10s period with E swell.
  • Evening surf: Evening surf (09 Sep, local time) - 5.5ft (1.7m), 9s period with E swell.

The current surf forecast for Kosi Bay at 12AM is: 1.1m 12s primary swell from a South direction and 0.5m 9s secondary swell from a East direction, 1.1m 7s secondary swell from a East direction (forecast issued at 07:00pm September 08). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (09 Sep)5ft (1.5m)10s
Afternoon (09 Sep)5ft (1.6m)10s
Evening (09 Sep)5.5ft (1.7m)9s

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


Short Range Forecast

Mostly dry. Warm (max 24°C on Fri morning, min 18°C on Thu morning). Wind will be generally light.

Tue
8
Wednesday
9
Thursday
10
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
1
2
3
3
2
1
1
1
3
3
3
3
2
2
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
S
13
1.2
S
12
1.1
S
12
1.1
S
12
1.3
E
9
1.4
E
9
1.5
E
10
1.6
E
10
1.6
E
9
1.7
E
9
1.8
E
9
1.8
E
10
1.7
E
10
1.7
E
9
1.6
E
9
1.6
E
9
1.6
E
9
1.5
E
9
1.5
E
9
Wave Graph
Metric surfscale
Energy kJ
547
425
347
336
268
334
417
480
441
486
556
580
518
492
427
422
413
364
372
Wind (km/h)
15
ENE
15
ENE
15
NE
10
NE
10
NNE
10
N
15
NE
20
NE
20
NE
15
NE
15
NNE
10
N
10
NNW
15
NNW
20
NNE
20
NNE
20
NE
15
NE
15
NNE
Wind State
cross
cross
cross
cross
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross-off
off
off
cross-off
cross-off
cross
cross
cross-off
High Tide
2:19PM1.85m
2:36AM1.90m
2:56PM2.08m
3:10AM2.07m
3:29PM2.25m
Low Tide
8:27PM0.38m
8:41AM0.25m
9:04PM0.19m
9:15AM0.07m
9:36PM0.06m
clear
clear
part cloud
clear
clear
part cloud
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>
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:37
5:38
 mm
Temp °C
20
20
20
20
20
20
22
21
20
20
20
19
19
18
21
22
21
20
20
Feels °C
18
19
19
18
19
19
20
18
18
19
19
18
19
18
19
19
19
19
20
  • 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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