J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 7 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's J-Bay sea temperature is
12.4° C
6.4° 

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 (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 10ft (3.0m), 13s period with SW swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 10ft (3.0m), 12s period with SW swell.
  • Evening surf: Evening surf (19 Aug, local time) - 10ft (3.0m), 12s period with SW swell.

The current surf forecast for J-Bay at 12AM is: 3.0m 13s primary swell from a Southwest direction (forecast issued at 07:00pm August 18). An open ocean swell of 0.5m 10s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (19 Aug)10ft (3.0m)13s
Afternoon (19 Aug)10ft (3.0m)12s
Evening (19 Aug)10ft (3.0m)12s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Fri afternoon, min 12°C on Tue night). Wind will be generally light.

Tue
18
Wednesday
19
Thursday
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)
4
4
5
4
4
4
4
3
2
2
3
3
4
5
6
5
4
5
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SW
13
3
SW
13
3
SW
13
3
SW
13
3
SW
13
3
SW
13
3
SW
13
3
SW
12
3
SW
12
3
SW
12
2.4
SW
12
2.2
SW
12
3
SW
12
3.5
SW
13
4
SW
14
4
SW
14
3.5
SW
13
3.5
SW
13
3
SW
13
Wave Graph
Metric surfscale
Energy kJ
2483
2660
3214
3165
3020
2752
2536
2457
2257
2335
1659
1381
2335
4058
5469
5389
4873
3937
3185
Wind (km/h)
15
SW
5
W
5
N
10
NE
10
NNE
5
N
5
SW
20
SW
25
SW
25
WSW
25
W
25
W
20
WNW
15
NW
15
WSW
15
SSW
15
SSW
5
W
10
WNW
Wind State
cross-off
glassy
glassy
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross
cross-off
off
High Tide
6:59PM1.39m
7:09AM1.19m
7:31PM1.24m
7:46AM1.06m
8:17PM1.09m
Low Tide
1:12AM0.45m
1:09PM0.48m
1:49AM0.58m
1:47PM0.62m
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:52
5:52
5:52
 mm
Temp °C
16
15
14
13
12
12
17
18
15
14
14
14
13
13
16
17
15
14
14
Feels °C
14
15
14
12
11
11
16
15
11
10
11
10
10
10
13
14
13
13
13
  • 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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