J-Bay surf break

J-Bay surfForecast / Eastern Cape (S) / South Africa

information circle48hr Weather and Surf, issued 1 pm Wednesday 17 Sep 2025 SAST
Forecast update in hr  min  s Forecast update imminent
J-Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's J-Bay sea temperature is
18.4° C
(Which is slightly cooler than normal)


How big are the waves at J-Bay today?

The current surf forecast for J-Bay at 4PM is: 4.5m 13s primary swell from a South-southwest direction (forecast issued at 01:00pm September 17). The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (17 Sep)15ft (4.5m)12s
Afternoon (17 Sep)15ft (4.5m)13s
Evening (17 Sep)13ft (4.0m)13s

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

Updates in  hr  min  s Forecast update imminent
Wednesday
17
Thursday
18
Friday
19
Saturday
20
11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM
Rating
(10 max)
6
5
4
5
5
5
5
5
3
2
2
4
4
4
4
3
0
0
0
0
0
0
0
3
Swell
Height Map
Wave Height (m) & direction (?)
4.5
SSW
4.5
SSW
4
SSW
4
SSW
3.5
SSW
3.5
SSW
3.5
SSW
3
SSW
3
SSW
3
SSW
3
SSW
3
SSW
3
SSW
2.4
SSW
2.5
SSW
2.4
SSW
1.4
S
1.5
S
1.4
S
1.4
S
1.5
S
2.5
E
2.5
E
1.5
SSE
Period(s) (?)1313131313121212121212121212121212131313138813
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6543643854484899412835183146278122052555238023022239159218401491526749673653736727893817
Wind
(km/h)
30
WSW
30
SW
30
SW
15
WSW
15
NW
15
WNW
15
WNW
15
WNW
20
SW
30
SW
25
SW
10
W
10
NW
5
NNW
5
N
10
NE
25
E
35
E
35
E
35
ENE
25
ENE
15
ENE
20
E
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffcross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
crosscross-
on
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross
High Tide
/ height (m)
1:27PM
1.27
1:43AM
1.30
2:07PM
1.43
2:20AM
1.42
2:39PM
1.57
2:51AM
1.51
Low Tide
/ height (m)
7:43PM
0.45
7:56AM
0.34
8:21PM
0.31
8:29AM
0.22
8:52PM
0.20
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunrise-------6:16-------6:13-------6:13
Sunset--6:12-------6:13-------6:14-----
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
Rain (mm)
------------------------
Temp. °C171716141312131417181615141413141821191718161617
Feels °C (?)10101011109101112121113121211121315141214141316
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Eastern Cape (S)

  1. weather stationWind Update The wind is still cross-off at J-Bay (light winds from the SW at Cape Saint Francis 19 km from J-Bay). A 4.2m groundswell from the SSW is too big for here

    J-Bay
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19 km away, 1 h 8 min ago

13 km/h
SW
0.0
18.4
Air / Water (°C)
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