J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 1 pm 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's J-Bay sea temperature is
18.0° C
1.1° 

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 (17 Jul):

  • Morning surf: Morning surf (17 Jul, local time) - 10ft (3.0m), 12s period with SW swell.
  • Afternoon surf: Afternoon surf (17 Jul, local time) - 8ft (2.5m), 12s period with SW swell.
  • Evening surf: Evening surf (17 Jul, local time) - 7ft (2.1m), 11s period with SW swell.

The current surf forecast for J-Bay at 6PM is: 2.4m 11s primary swell from a Southwest direction and 0.6m 10s secondary swell from a East direction (forecast issued at 01:00pm July 17). The wind direction is predicted to be glassy and the swell rating is 4.

Time (SAST) & DateWave HeightWave Period
Morning (17 Jul)10ft (3.0m)12s
Afternoon (17 Jul)8ft (2.5m)12s
Evening (17 Jul)7ft (2.1m)11s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Sat afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the WSW on Sun afternoon, calm by Mon morning).

Fri
17
Saturday
18
Sunday
19
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)
4
4
4
4
4
3
3
3
4
2
3
5
4
4
4
3
3
2
1
3
3
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)
3
SW
12
2.5
SW
12
2.5
SW
11
2.3
SW
11
2.1
SW
11
1.9
SW
11
1.7
SW
10
1.5
SW
10
1.7
WSW
10
1.4
SW
10
1.9
SW
10
3
SW
10
2.5
SW
10
2.1
SW
10
1.8
SW
9
1.6
SW
9
1.6
SW
9
2
WSW
8
3.5
SW
9
4
SW
10
3.5
SW
11
Wave Graph
Metric surfscale
Energy kJ
2190
1910
1481
1171
1010
804
576
432
522
380
701
1614
1234
813
552
418
371
502
1655
2932
2875
Wind (km/h)
10
W
10
SSW
5
SSW
5
WSW
10
NW
10
NW
10
NW
10
WNW
15
W
25
WSW
20
WSW
15
WNW
10
WNW
10
WNW
10
WNW
15
WNW
20
WSW
30
WSW
40
WSW
30
W
30
WSW
Wind State
cross-off
cross-off
glassy
glassy
off
off
off
off
off
cross-off
cross-off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
6:00PM1.69m
6:10AM1.50m
6:39PM1.62m
6:48AM1.39m
7:17PM1.51m
Low Tide
11:41AM0.04m
00:12AM0.19m
12:17PM0.12m
00:52AM0.28m
12:52PM0.23m
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
 mm
Temp °C
16
18
16
16
15
15
15
15
18
20
17
16
15
15
15
14
17
19
17
16
16
Feels °C
15
17
16
17
14
14
14
13
16
16
14
14
13
13
13
12
14
13
11
12
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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