J-Bay surf break

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

information circle12 Day Weather and Surf, issued 1 am Friday 05 Dec 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
18.1° C
(Which is 3.1°C colder than average for this time of year)


Best Forecast Surf Conditions for J-Bay this week:

The surf forecast for J-Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 05) at 8PM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.7m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at J-Bay in the next 12 days are 2.2m 12s and forecast to arrive on Sunday (Dec 07) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Tuesday (Dec 09) at 2PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Fri 5th Dec)3.5ft (1.1m) 9s
Best Surf 2AM (Mon 8th Dec)7ft (2.1m) 12s
Most Powerful 8PM (Sun 7th Dec)7ft (2.2m) 12s

Table - best surf conditions forecast for J-Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Fri night. Warm (max 22°C on Fri morning, min 15°C on Sat night). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Tue night. Warm (max 22°C on Mon afternoon, min 15°C on Wed night). Winds increasing (calm on Mon morning, fresh winds from the ESE by Wed afternoon).

Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
2
2
0
2
0
0
4
2
0
4
2
2
2
0
0
0
0
0
2
Swell
Height Map
Wave Height (m) & direction (?)
1.2
S
1.1
S
1.2
SW
1.6
SW
1.3
SW
1.1
SW
1.9
SW
2.2
SW
2.1
SW
1.9
SW
1.8
SW
2
SW
2.1
SW
2.2
SW
2.2
SW
2.1
SW
2
SSW
1.6
SW
1.5
SSW
2.2
E
2.1
E
Period(s) (?)1091010991212121212121211111110101078
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2662073024503001971131141512769978551076111111621109954886490448453569
Wind
(km/h)
25
SSW
20
SSW
10
W
15
S
15
S
5
NNW
25
SE
30
ESE
5
N
15
SSE
15
SSE
10
WSW
20
SSW
25
SW
10
SSE
20
SE
30
ESE
15
NE
25
ESE
40
E
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscross-
off
crosscrosscross-
off
ononglasscross-
on
cross-
on
cross-
off
crosscross-
off
cross-
on
ononcross-
on
oncross-
on
cross
High Tide
/ height (m)
3:47PM
1.74
4:17AM
1.62
4:32PM
1.68
5:01AM
1.60
5:16PM
1.59
5:47AM
1.55
6:00PM
1.46
6:36AM
1.47
6:47PM
1.32
7:29AM
1.38
7:39PM
1.19
8:29AM
1.30
8:45PM
1.09
Low Tide
/ height (m)
9:34AM
0.09
10:06PM
0.01
10:21AM
0.11
10:48PM
0.05
11:08AM
0.17
11:31PM
0.12
11:56AM
0.27
12:14AM
0.21
12:47PM
0.38
1:00AM
0.32
1:44PM
0.49
1:51AM
0.42
2:53PM
0.58
2:51AM
0.52
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Sunrise5:01--5:01--5:01--5:01--5:01--5:01--5:01--
Sunset-7:19--7:20--7:21--7:22--7:22--7:22--7:23-
part cloud
clear
rain showers
light rain
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
rain showers
part cloud
part cloud
clear
clear
clear
clear
Rain (mm)
--11----------3------
Temp. °C222120192018202119212221222220191918242622
Feels °C (?)191920181818161617202222191719161414202020
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the J-Bay Surf forecast

The above surf forecast table for J-Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at J-Bay can be found by selecting the local surf guide option on the grey menu. Our J-Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (J-Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for J-Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

J-Bay is 19 km (12 miles) from the city of Kruisfontein. If you plan a holiday in Eastern Cape (South), look for hotels and other accommodation in Kruisfontein. Kruisfontein has rooms for a wide range of budgets as well as car hire and transport links.

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