Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 7 pm 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
22.7°C
0.6° 

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 (04 Sep):

  • Morning surf: Morning surf (04 Sep, local time) - 4.5ft (1.3m), 7s period with NE swell.
  • Afternoon surf: Afternoon surf (04 Sep, local time) - 10ft (3.0m), 8s period with S swell.
  • Evening surf: Evening surf (04 Sep, local time) - 11ft (3.5m), 9s period with S swell.

The current surf forecast for Kosi Bay at 3AM is: 1.2m 7s primary swell from a East-northeast direction and 0.3m 13s secondary swell from a South-southwest direction (forecast issued at 07:00pm September 03). An open ocean swell of 1.3m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (04 Sep)4.5ft (1.3m)7s
Afternoon (04 Sep)10ft (3.0m)8s
Evening (04 Sep)11ft (3.5m)9s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Fri night. Warm (max 24°C on Fri morning, min 19°C on Fri night). Mainly strong winds.

Thu
3
Friday
4
Saturday
5
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
0
1
0
2
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.4
SSW
15
1.8
NE
6
1.8
NE
6
1.2
ENE
7
1.7
NE
7
1.4
NE
7
1.1
NE
7
2.5
S
7
3.5
S
9
4
S
9
3.5
S
9
3.5
S
9
3.5
S
9
3
SSE
10
3
SSE
10
3
SSE
10
2.5
SSE
10
2.4
SSE
10
1.7
SSE
9
Wave Graph
Metric surfscale
Energy kJ
71
221
256
135
263
173
118
672
2013
2509
2387
2349
2185
1922
1704
1501
1328
1037
449
Wind (km/h)
30
NE
30
NE
25
NNE
25
N
15
NNW
25
S
30
S
45
S
40
S
40
S
40
S
40
S
35
SSE
35
S
30
S
30
SSE
25
SSE
20
SE
20
SSE
Wind State
cross
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
7:10PM1.78m
7:26AM1.61m
8:02PM1.54m
8:37AM1.39m
10:08PM1.35m
Low Tide
1:23AM0.56m
1:42PM0.61m
2:24AM0.78m
3:12PM0.84m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
light rain
rain showers
light rain
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:36
5:37
 mm
1
1
1
Temp °C
25
23
23
23
22
22
24
23
21
20
20
19
19
19
19
19
19
20
20
Feels °C
21
20
21
19
19
21
21
18
16
15
14
13
14
14
14
15
16
18
19
  • 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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