J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 1 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's J-Bay sea temperature is
14.4° C
4.6° 

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 (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 7ft (2.2m), 8s period with ESE swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 3.5ft (1.1m), 20s period with SSW swell.
  • Evening surf: Evening surf (12 Aug, local time) - 10ft (3.0m), 8s period with E swell.

The current surf forecast for J-Bay at 6PM is: 3.0m 8s primary swell from a East direction and 1.1m 19s secondary swell from a South-southwest direction, 1.0m 11s secondary swell from a South-southwest direction (forecast issued at 01:00pm August 12). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (12 Aug)7ft (2.2m)8s
Afternoon (12 Aug)3.5ft (1.1m)20s
Evening (12 Aug)10ft (3.0m)8s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Fri afternoon, min 12°C on Wed night). Winds decreasing (strong winds from the E on Wed afternoon, calm by Sat morning).

Wed
12
Thursday
13
Friday
14
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
1
2
1
2
0
0
3
3
4
4
3
3
3
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
21
1.1
SSW
20
3
E
8
3
E
8
3
E
8
1.5
SSW
17
1.5
SSW
17
1.6
SW
16
1.2
SSW
20
1.2
SSW
19
1.8
SW
17
1.7
SW
17
1.6
SW
17
1.6
SW
16
1.5
SW
16
1.4
SW
16
1.4
SW
15
1.4
SW
15
1.3
SW
15
1.3
SW
15
1.3
SW
14
Wave Graph
Metric surfscale
Energy kJ
712
951
1078
1236
1351
1294
1320
1335
1100
1055
1929
1737
1489
1225
1082
954
930
894
842
757
746
Wind (km/h)
35
ENE
40
E
45
E
40
ENE
35
ENE
25
ENE
20
NE
15
NE
15
NE
15
NNE
25
E
25
NE
15
NNE
10
N
10
N
15
N
20
N
20
NNW
15
NE
10
N
10
NNW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
High Tide
3:44PM1.72m
3:57AM1.68m
4:20PM1.79m
4:32AM1.68m
4:55PM1.81m
Low Tide
9:31AM0.03m
9:54PM0.07m
10:06AM-0.03m
10:32PM0.03m
10:40AM-0.04m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:46
5:47
5:49
 mm
Temp °C
17
19
17
15
14
13
12
13
19
24
23
20
20
19
20
21
24
26
27
24
23
Feels °C
11
12
9
8
8
8
8
10
16
20
19
15
17
16
17
17
20
22
24
21
20
  • 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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