J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 1 am 19 Sep 2026 (local time)

Forecast update in  hr  min

Today's J-Bay sea temperature is
16.5°C
2.5° 

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 (19 Sep):

  • Morning surf: Morning surf (19 Sep, local time) - 5ft (1.6m), 12s period with SW swell.
  • Afternoon surf: Afternoon surf (19 Sep, local time) - 5ft (1.5m), 12s period with SW swell.
  • Evening surf: Evening surf (19 Sep, local time) - 5ft (1.5m), 12s period with SW swell.

The current surf forecast for J-Bay at 4AM is: 1.7m 13s primary swell from a Southwest direction and 0.2m 18s secondary swell from a South-southwest direction, 2.1m 7s secondary swell from a East direction (forecast issued at 01:00am September 19). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (19 Sep)5ft (1.6m)12s
Afternoon (19 Sep)5ft (1.5m)12s
Evening (19 Sep)5ft (1.5m)12s

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


Short Range Forecast

Mostly dry. Warm (max 21°C on Mon afternoon, min 13°C on Sat morning). Wind will be generally light.

Saturday
19
Sunday
20
Monday
21
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
1
3
3
3
4
2
3
4
4
4
4
3
2
2
3
3
3
4
2
1
0
0
0
0
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)
1.8
SW
13
1.6
SW
13
1.6
SW
12
1.6
SW
12
1.5
SW
12
1.5
SW
12
1.6
SW
12
1.3
SW
12
1.4
SSW
15
2.1
SW
15
2.4
SW
14
2.5
SW
14
2.3
SW
13
2.3
SW
13
2.1
SW
13
2
SW
13
1.9
SW
13
1.8
SW
13
1.7
SW
12
1.6
SW
12
1.6
SW
12
1.4
SW
12
1.3
SW
12
1.1
SW
12
Wave Graph
Metric surfscale
Energy kJ
1021
851
730
695
624
614
661
486
818
1914
2317
2238
1890
1749
1498
1286
1185
1003
874
798
700
522
455
361
Wind (km/h)
20
ENE
15
NNE
5
NNE
5
N
5
SSE
10
SE
0
SW
5
WSW
5
WNW
5
NW
5
NNW
10
SE
10
SSE
15
ESE
10
E
5
E
5
E
5
E
5
E
15
E
20
ESE
25
ESE
20
ENE
20
ENE
Wind State
cross-on
cross
cross
cross
glassy
on
glassy
glassy
glassy
off
glassy
cross-on
cross-on
on
on
cross-on
on
glassy
cross-on
on
on
on
cross-on
cross-on
High Tide
7:50AM0.95m
8:56PM0.95m
12:15PM0.96m
00:28AM1.02m
1:12PM1.11m
Low Tide
1:41AM0.68m
2:00PM0.77m
4:51AM0.75m
6:22PM0.77m
6:53AM0.63m
7:18PM0.62m
clear
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:14
6:15
 mm
Temp °C
14
13
13
16
20
19
17
17
17
16
17
20
20
19
18
18
17
17
18
19
20
21
18
18
Feels °C
11
11
12
15
19
17
17
16
17
15
17
19
19
18
18
19
18
19
19
19
18
19
17
17
  • 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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