J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 7 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's J-Bay sea temperature is
13.0° C
5.8° 

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 (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 11ft (3.5m), 14s period with SW swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 13ft (4.0m), 14s period with SW swell.
  • Evening surf: Evening surf (20 Aug, local time) - 11ft (3.5m), 13s period with SW swell.

The current surf forecast for J-Bay at 1AM is: 2.3m 12s primary swell from a Southwest direction and 0.4m 9s secondary swell from a East direction, 1.7m 7s secondary swell from a Southwest direction (forecast issued at 07:00pm August 19). The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (20 Aug)11ft (3.5m)14s
Afternoon (20 Aug)13ft (4.0m)14s
Evening (20 Aug)11ft (3.5m)13s

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


Short Range Forecast

Mostly dry. Very mild (max 17°C on Thu afternoon, min 13°C on Wed night). Winds increasing (calm on Fri morning, strong winds from the WSW by Sat morning).

Wed
19
Thursday
20
Friday
21
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)
3
2
3
2
4
5
7
4
4
5
5
4
4
4
3
0
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SW
12
2.5
SW
12
2.5
SW
12
2.3
SW
12
2.3
SW
12
3.5
SW
14
4
SSW
14
4
SW
14
3.5
SW
13
3.5
SW
13
3
SW
13
3
SW
13
3
SW
12
2.5
SW
12
2.5
SW
12
2.3
SW
12
2.2
SW
12
2.1
SW
12
1.5
SSW
12
Wave Graph
Metric surfscale
Energy kJ
2148
1999
1866
1470
1500
4231
6035
5874
4873
3937
3344
2815
2233
1978
1742
1524
1324
1102
644
Wind (km/h)
25
SW
25
WSW
25
W
25
WSW
20
W
15
WNW
15
WSW
15
SSW
15
SSW
5
W
10
WNW
10
WNW
5
NNW
5
N
10
ESE
20
SE
25
ESE
20
ENE
15
NE
Wind State
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross
cross
off
off
off
cross-off
glassy
on
on
on
cross-on
cross-on
High Tide
7:31PM1.24m
7:46AM1.06m
8:17PM1.09m
9:08AM0.94m
10:35PM1.00m
Low Tide
1:49AM0.58m
1:47PM0.62m
2:53AM0.70m
3:08PM0.75m
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:52
5:52
5:53
 mm
Temp °C
16
15
14
14
13
13
16
17
15
14
14
13
13
13
15
17
16
14
14
Feels °C
13
11
10
10
10
10
13
14
12
13
13
12
12
12
13
13
12
11
12
  • 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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