J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 7 pm 18 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 (1.6m), 12s period with SW swell.

The current surf forecast for J-Bay at 1AM is: 1.8m 13s primary swell from a Southwest direction and 2.2m 7s secondary swell from a East direction (forecast issued at 07:00pm September 18). 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 (1.6m)12s

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


Short Range Forecast

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

Fri
18
Saturday
19
Sunday
20
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
3
3
4
3
2
3
4
4
4
4
3
2
2
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SW
11
1.8
SW
11
1.8
SW
13
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
2.3
SW
14
2.3
SW
13
2.3
SW
13
2.1
SW
13
2
SW
13
Wave Graph
Metric surfscale
Energy kJ
675
866
1109
1021
851
730
695
624
614
661
486
818
1914
2202
1991
1890
1749
1417
1286
Wind (km/h)
30
E
25
E
30
ENE
20
ENE
15
NE
5
N
5
N
5
ESE
10
SE
5
SSW
5
W
5
W
5
WNW
0
NNW
10
SE
15
SE
15
ESE
10
E
5
E
Wind State
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
on
on
glassy
glassy
cross-off
glassy
glassy
cross-on
on
on
cross-on
cross-on
High Tide
7:11PM1.09m
7:50AM0.95m
8:56PM0.95m
12:15PM0.96m
Low Tide
1:41AM0.68m
2:00PM0.77m
4:51AM0.75m
6:22PM0.77m
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:13
6:14
6:14
 mm
Temp °C
18
16
15
14
13
13
17
20
20
17
17
17
16
17
19
19
19
18
18
Feels °C
13
12
10
10
11
12
16
19
18
17
17
17
16
17
18
18
18
18
19
  • 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.


Nearest locationNearest