Kosi Bay Surf Break

Lat Long: 26.87° S 32.89° E

Kosi Bay 48 hour detailed Surf Forecast

Issued: 7 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kosi Bay sea temperature is
22.8°C
0.7° 

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 (05 Sep):

  • Morning surf: Morning surf (05 Sep, local time) - 10ft (3.0m), 10s period with SSE swell.
  • Afternoon surf: Afternoon surf (05 Sep, local time) - 8ft (2.5m), 10s period with SSE swell.
  • Evening surf: Evening surf (05 Sep, local time) - 7ft (2.1m), 9s period with SE swell.

The current surf forecast for Kosi Bay at 1AM is: 3.0m 9s primary swell from a South direction and 0.6m 9s secondary swell from a East direction, 0.1m 20s secondary swell from a South direction (forecast issued at 07:00pm September 04). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (05 Sep)10ft (3.0m)10s
Afternoon (05 Sep)8ft (2.5m)10s
Evening (05 Sep)7ft (2.1m)9s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sat morning. Warm (max 21°C on Mon afternoon, min 19°C on Sat morning). Winds decreasing (strong winds from the S on Fri night, light winds from the S by Sat night).

Fri
4
Saturday
5
Sunday
6
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
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
S
9
3.5
S
9
3.5
S
9
3
S
9
3
S
9
3
SSE
10
2.5
SSE
10
2.5
SSE
10
2.5
SSE
10
2.1
SE
9
1.7
SSE
9
1.8
SSE
9
1.7
SSE
9
1.7
SSE
9
1.9
SE
9
1.4
SSE
9
1.4
SSE
8
1.3
SSE
8
1.6
SE
8
Wave Graph
Metric surfscale
Energy kJ
1693
2073
1794
1601
1622
1596
1405
1328
1288
702
449
549
484
426
554
297
254
202
314
Wind (km/h)
40
S
40
S
35
S
35
S
35
SSE
30
S
25
SSE
30
SSE
25
SSE
25
SSE
15
SSE
15
SSE
15
S
20
SE
20
SSE
20
SE
25
SE
20
SSE
20
SSE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross-on
on
on
on
on
on
on
High Tide
8:02PM1.54m
8:37AM1.39m
10:08PM1.35m
11:52AM1.35m
Low Tide
2:24AM0.78m
3:12PM0.84m
5:00AM0.90m
6:19PM0.83m
part cloud
cloud
cloud
part cloud
cloud
cloud
rain showers
cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
light rain
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:37
5:37
 mm
1
1
Temp °C
21
20
20
20
20
19
19
20
19
20
20
19
19
20
20
20
20
20
19
Feels °C
16
14
15
15
15
15
15
16
15
18
19
18
18
18
18
18
17
18
16
  • 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.


Nearest locationNearest