J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 7 pm 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's J-Bay sea temperature is
15.9°C
2.9° 

J-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 J-Bay today (03 Sep):

  • Morning surf: Morning surf (03 Sep, local time) - 8ft (2.4m), 13s period with SW swell.
  • Afternoon surf: Afternoon surf (03 Sep, local time) - 5.5ft (1.7m), 12s period with WSW swell.
  • Evening surf: Evening surf (03 Sep, local time) - 11ft (3.5m), 9s period with S swell.

The current surf forecast for J-Bay at 1AM is: 2.5m 13s primary swell from a Southwest direction (forecast issued at 07:00pm September 02). An open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (SAST) & DateWave HeightWave Period
Morning (03 Sep)8ft (2.4m)13s
Afternoon (03 Sep)5.5ft (1.7m)12s
Evening (03 Sep)11ft (3.5m)9s

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


Short Range Forecast

Heavy rain (total 38mm), heaviest during Thu night. Very mild (max 18°C on Thu morning, min 14°C on Fri night). Winds increasing (calm on Wed night, strong winds from the SSE by Thu night).

Wed
2
Thursday
3
Friday
4
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
3
3
3
3
0
0
0
0
0
0
0
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
SW
13
2.5
SW
13
2.5
SW
13
2.5
SW
13
2.5
SW
13
2.4
SW
13
2.5
SSW
13
1.7
SW
12
3
S
9
3.5
S
9
4
S
9
4
SSE
10
4
SSE
10
3.5
SSE
9
3
SSE
9
3
SSE
9
2.3
SE
8
2.3
SE
8
2.1
SE
8
Wave Graph
Metric surfscale
Energy kJ
2733
2429
2392
2270
2013
1892
1929
907
1320
2225
2532
2967
2602
2008
1399
1437
772
692
589
Wind (km/h)
10
ESE
15
E
5
E
10
ESE
10
E
5
SE
20
SE
25
SSE
30
SE
40
SSE
40
SSE
40
SSE
40
SE
30
SE
30
ESE
30
ESE
30
ESE
30
E
25
E
Wind State
on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
High Tide
6:35PM1.52m
6:53AM1.29m
7:20PM1.36m
7:49AM1.14m
8:32PM1.19m
Low Tide
00:51AM0.32m
12:56PM0.38m
1:44AM0.48m
1:55PM0.54m
clear
clear
part cloud
cloud
light rain
light rain
light rain
light rain
mod rain
heavy rain
rain showers
light rain
cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:01
6:02
6:02
 mm
1
1
2
5
7
18
3
1
Temp °C
16
16
15
17
17
18
17
17
16
16
17
16
16
16
16
16
15
15
15
Feels °C
14
15
15
17
18
19
15
14
13
10
10
9
8
9
9
10
9
9
10
  • 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 J-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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