J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 7 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's J-Bay sea temperature is
16.1°C
2.7° 

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 (13 Sep):

  • Morning surf: Morning surf (13 Sep, local time) - 7.5ft (2.3m), 15s period with SW swell.
  • Afternoon surf: Afternoon surf (13 Sep, local time) - 11ft (3.5m), 9s period with E swell.
  • Evening surf: Evening surf (13 Sep, local time) - 11ft (3.5m), 10s period with E swell.

The current surf forecast for J-Bay at 1PM is: 2.2m 15s primary swell from a Southwest direction and 3.5m 9s secondary swell from a East direction (forecast issued at 07:00am September 13). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (13 Sep)7.5ft (2.3m)15s
Afternoon (13 Sep)11ft (3.5m)9s
Evening (13 Sep)11ft (3.5m)10s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Sun morning. Warm (max 22°C on Mon afternoon, min 16°C on Tue night). Winds decreasing (fresh winds from the ENE on Sun morning, calm by Mon morning).

Sunday
13
Monday
14
Tuesday
15
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)
0
0
0
0
0
0
0
3
4
3
4
4
3
3
3
4
4
3
4
0
2
2
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)
2.4
SSW
16
2.4
SSW
16
2.3
SW
15
2.1
SW
15
4
E
10
3.5
E
10
3.5
E
10
3
E
10
3
E
10
2.5
E
10
2.5
E
10
2.5
E
10
2.4
E
10
2.4
E
11
2.3
E
11
2.2
E
11
2.1
E
11
1.9
E
11
1.8
E
11
1.6
E
11
1.5
E
11
1.3
E
11
1.2
E
11
Wave Graph
Metric surfscale
Energy kJ
2785
2680
2307
2214
2600
2625
2471
2016
1664
1449
1375
1308
1280
1338
1253
1137
1056
882
785
621
536
389
348
Wind (km/h)
25
E
25
E
40
ENE
40
ENE
30
ENE
30
ENE
25
ENE
15
NNE
15
N
5
NNE
0
W
5
WNW
25
WSW
20
WSW
15
W
10
W
5
WNW
5
NNE
10
WSW
20
SSE
10
S
5
NE
10
ENE
Wind State
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross
glassy
off
cross-off
cross-off
cross-off
cross-off
off
cross
cross-off
cross-on
cross
cross-on
cross-on
High Tide
4:53PM1.77m
5:06AM1.58m
5:20PM1.67m
5:33AM1.48m
5:46PM1.53m
Low Tide
10:39AM0.02m
11:04PM0.07m
11:06AM0.10m
11:30PM0.16m
11:33AM0.21m
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:08
6:09
6:10
 mm
2
2
3
1
1
1
Temp °C
17
17
17
17
17
18
18
18
19
19
19
22
21
18
17
17
17
18
22
20
19
18
18
Feels °C
15
14
12
12
13
15
16
18
19
20
21
23
19
17
16
17
18
18
20
17
18
18
18
  • 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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