J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 1 pm 30 Sep 2026 (local time)

Forecast update in  hr  min

Today's J-Bay sea temperature is
14.7°C
4.4° 

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 (30 Sep):

  • Morning surf: Morning surf (30 Sep, local time) - 7.5ft (2.3m), 7s period with E swell.
  • Afternoon surf: Afternoon surf (30 Sep, local time) - 10ft (3.0m), 8s period with ESE swell.
  • Evening surf: Evening surf (30 Sep, local time) - 10ft (3.0m), 8s period with E swell.

The current surf forecast for J-Bay at 9PM is: 3.0m 8s primary swell from a East direction and 1.3m 11s secondary swell from a Southeast direction, 1.0m 14s secondary swell from a Southwest direction (forecast issued at 01:00pm September 30). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (30 Sep)7.5ft (2.3m)7s
Afternoon (30 Sep)10ft (3.0m)8s
Evening (30 Sep)10ft (3.0m)8s

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


Short Range Forecast

Moderate rain (total 18mm), heaviest on Fri night. Warm (max 31°C on Thu afternoon, min 15°C on Sat morning). Winds decreasing (fresh winds from the E on Wed afternoon, light winds from the NE by Thu morning).

Wed
30
Thursday
1
Friday
2
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
1
2
3
3
2
2
2
3
3
2
1
1
0
1
2
2
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)
2.2
E
7
3
ESE
8
3
E
8
3
E
8
3
E
8
3
E
9
2.5
E
9
2.3
E
9
2.1
E
9
2
E
9
2.2
E
9
2.4
E
9
2.2
E
9
2
E
9
1.8
E
10
1.6
E
10
1.4
E
10
1.3
E
10
1.2
E
10
1.1
E
10
1
E
10
Wave Graph
Metric surfscale
Energy kJ
460
904
1177
1351
1251
1247
1015
859
732
664
805
896
769
693
598
492
384
331
282
239
194
Wind (km/h)
30
ENE
30
E
35
E
30
ENE
20
ENE
15
NE
15
NE
10
NE
10
N
10
N
15
ENE
15
NE
15
N
15
WSW
20
WSW
25
WSW
25
SW
25
SSW
20
SW
15
W
15
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
5:36PM1.64m
5:57AM1.44m
6:16PM1.48m
6:42AM1.29m
7:06PM1.29m
Low Tide
11:21AM0.13m
11:51PM0.18m
11:59AM0.27m
00:33AM0.33m
12:46PM0.44m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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5:58
—
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—
—
—
—
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5:56
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—
—
—
—
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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6:21
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—
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6:22
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6:22
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 mm
—
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1
3
Temp °C
20
25
20
17
16
17
19
22
28
31
31
28
27
23
18
18
20
18
18
17
16
Feels °C
15
20
15
13
13
15
17
20
26
28
29
25
24
21
15
14
16
14
16
16
15
  • 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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