J-Bay surf break

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

information circle12 Day Weather and Surf, issued 7 pm Saturday 06 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
18.4° C
(Which is 2.9°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 Saturday (Dec 06) at 11PM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 0.7m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at J-Bay in the next 12 days are 5.0m 13s and forecast to arrive on Saturday (Dec 13) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Tuesday (Dec 09) at 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sat 6th Dec)4.5ft (1.3m) 9s
Best Surf 2AM (Mon 8th Dec)7ft (2.1m) 12s
Most Powerful11PM (Sat 13th Dec)16ft (5.0m) 13s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 24°C on Tue afternoon, min 17°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the SE by Sun afternoon).

Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Tue night. Warm (max 28°C on Thu afternoon, min 15°C on Wed night). Winds decreasing (fresh winds from the ESE on Wed afternoon, light winds from the S by Fri afternoon).

Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Sat
13
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
0
0
4
2
1
4
2
2
2
0
0
0
0
0
2
1
1
4
2
3
Swell
Height Map
Wave Height (m) & direction (?)
1.1
SW
2.1
SW
2.3
SW
2.1
SW
1.9
SW
1.8
SW
2
SW
2.3
SW
2.5
SW
2.5
SW
2.2
SW
2
SW
1.8
SW
1.5
SSW
2.1
E
2.1
E
1.3
E
1.1
E
1.3
SW
3.5
SW
5
SW
Period(s) (?)912121212121212111111111010791010161311
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1971337151812769978551076135118281539119193268947546170235023383444645791
Wind
(km/h)
10
NW
20
SE
30
ESE
5
WNW
15
SSE
20
S
10
WNW
25
SW
30
SSW
10
ESE
30
ESE
35
ESE
25
ENE
20
SE
35
E
20
WSW
30
SW
10
S
10
WNW
40
WSW
40
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
onglasscross-
on
crossoffcross-
off
crossonononcross-
on
ononcross-
off
cross-
off
crossoffcross-
off
cross-
off
High Tide
/ height (m)
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
9:40AM
1.25
10:09PM
1.03
10:54AM
1.24
Low Tide
/ height (m)
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
4:15PM
0.61
4:05AM
0.58
5:35PM
0.58
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Sat
13
Sunrise-5:01--5:01--5:01--5:01--5:01--5:01--5:01-
Sunset--7:21--7:22--7:22--7:22--7:23--7:24--7:25
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
light rain
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
cloud
Rain (mm)
---------3-----------
Temp. °C192122202222202324182020182528242523212119
Feels °C (?)191817192121201919151513132324242019231810
  • Map Icons:
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  • 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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