J-Bay Surf Break

Lat Long: 34.05° S 24.93° E

J-Bay 48 hour detailed Surf Forecast

Issued: 7 am 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's J-Bay sea temperature is
15.9°C
3.0° 

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 (31 Aug):

  • Morning surf: Morning surf (31 Aug, local time) - 6.5ft (2.0m), 12s period with SW swell.
  • Afternoon surf: Afternoon surf (31 Aug, local time) - 5.5ft (1.7m), 12s period with WSW swell.
  • Evening surf: Evening surf (31 Aug, local time) - 5.5ft (1.7m), 12s period with SW swell.

The current surf forecast for J-Bay at 3PM is: 1.7m 12s primary swell from a West-southwest direction and 0.7m 10s secondary swell from a East direction (forecast issued at 07:00am August 31). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (31 Aug)6.5ft (2.0m)12s
Afternoon (31 Aug)5.5ft (1.7m)12s
Evening (31 Aug)5.5ft (1.7m)12s

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


Short Range Forecast

Mostly dry. Very mild (max 16°C on Mon afternoon, min 12°C on Mon night). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
4
4
4
0
2
3
3
3
4
4
4
2
3
4
5
5
5
5
4
3
2
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
SW
12
2
SW
12
1.9
SW
12
1.7
WSW
12
1.7
WSW
12
1.7
WSW
12
1.8
SW
12
1.8
SW
12
2
SW
12
2.1
SW
12
2.3
SW
12
2.4
SW
12
2.5
SW
12
3
SW
13
3
SW
13
3
SW
14
3.5
SW
13
3
SW
13
3
SW
13
3
SW
13
3
SW
13
3
SW
13
2.5
SW
13
Wave Graph
Metric surfscale
Energy kJ
1229
1074
974
793
807
731
822
836
1040
1167
1398
1610
2111
2574
3087
3663
3753
3581
3364
3208
2830
2522
2356
Wind (km/h)
10
WNW
5
NW
0
SSE
15
SSE
10
SSE
5
S
5
WNW
5
NNW
5
WNW
5
NW
5
SSE
15
SSE
5
ESE
10
SW
15
W
15
W
15
WNW
10
WNW
5
SSW
15
SSE
15
ESE
10
ENE
10
ENE
Wind State
off
off
glassy
cross-on
cross-on
glassy
off
cross-off
off
glassy
glassy
cross-on
on
cross-off
cross-off
off
off
off
cross
cross-on
on
cross-on
cross-on
High Tide
5:26PM1.74m
5:40AM1.54m
5:58PM1.65m
6:14AM1.43m
6:35PM1.52m
Low Tide
11:11AM0.04m
11:38PM0.10m
11:41AM0.11m
00:12AM0.19m
12:15PM0.23m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:39
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:01
 mm
Temp °C
13
13
15
16
15
14
14
13
12
12
15
16
15
14
13
13
12
13
16
16
16
15
15
Feels °C
11
12
15
13
14
13
13
12
11
11
14
14
14
13
11
11
10
11
15
14
14
14
14
  • 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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