Surf Forecasts:
J-Bay surf forecast from 22 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 11AM (local time) - 10ft (3.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 5PM (local time) - 10ft (3.0m), 16s period, SSW swell with 4,709 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 5AM (local time) - 8ft (2.5m), 11s period with SW swell.
Best Forecast Surf Conditions for J-Bay this week:
The surf forecast for J-Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 5AM. The primary swell is predicted to be 2.5m and 11s period with a secondary swell of 0.1m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at J-Bay in the next 16 days are 3.0m 16s and forecast to arrive on Wednesday (Aug 26) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Saturday (Aug 29) at 11PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 23rd Aug) | 8ft (2.5m) 11s |
| Best Surf | 11AM (Tue 25th Aug) | 10ft (3.0m) 14s |
| Most Powerful | 5PM (Wed 26th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for J-Bay over the next 16 days.
The Lowdown
Alright, surf fans, Rusty here. Let’s talk about what’s on the cards for J-Bay over the next couple of weeks. We’ve got a solid run of groundswell coming, but the wind is going to be the main character in this story.
Right off the bat, we’re looking at a super solid start. Saturday afternoon (August 22nd) kicks things off with a clean 5.6ft SW swell, but it’s a bit of a starter. The real green light comes Sunday morning (August 23rd). We’re looking at a clean 8.2ft SW swell with a nice 11-second period, and the wind is barely a whisper. The water is sitting at 56° which is far colder than usual for this time of year, so you’ll want a good thick wetsuit if you’re paddling out at J-Bay. The wave energy is already pumping at a solid 1438 (moderate energy).
Monday morning (August 24th) keeps the quality going with a clean 6.6ft SW swell and glassy conditions. This is on the bigger side but still manageable for strong intermediates.
Now, here’s the standout. Tuesday, August 25th, is the one to circle. Both morning and afternoon are looking epic. You’ve got a solid 9.8ft SW groundswell with a long 14-second period in the morning, and a 8.2ft SW swell in the afternoon. The wind is light and cross-off, keeping it clean. The wave energy is a healthy 3159 to 3166 (strong to very strong). This is proper J-Bay territory. The long period means the sets will be clean and powerful, with good gaps between them. Expect crowds to be possible here, as it’s J-Bay, but for waves like this, it’s worth it.
We hit a rough patch from Wednesday, August 26th, through to the end of the week. The wind swings onshore, gusting up to 18.6 mph from the East, making things choppy and lumpy. The swell stays big, over 9.8ft, but it’s a mess. Not worth paddling for unless you’re a kite surfer.
Friday morning, August 28th, offers a quick reprieve with a glassy 5.6ft E swell, but the period is short (10 seconds) and the energy drops off. It’s a clean session, but nothing special.
The following weekend (August 29th-30th) sees the wind return, but the swell is still there. Saturday is small and windy, but Sunday, August 30th, brings a massive 13.1ft to 18.0ft WSW swell. The wind is cross-off, keeping it clean, but the wave energy is off the charts (9655). This is expert territory only. If you’re not a pro, stay on the beach and watch.
The first week of September is a mixed bag. We have a big gap in quality until Friday, September 4th, which looks absolutely insane. The morning session is as good as it gets: a 19.7ft SW groundswell with a 14-second period, glassy conditions, and a wave energy reading of 12035 (very strong). This is exceptional surf for expert surfers only. The following Saturday and Sunday (September 5th-6th) are huge, with swells up to 23.0ft, but the wind is strong and the conditions are too big for any sort of comfortable paddle. The energy is through the roof (19156), but it’s a beast of a session.
So, to wrap it up: Tuesday, August 25th, is your best bet for a classic, powerful J-Bay session without it being a survival mission. Friday, September 4th morning, is the other absolute standout, but it’s only for the brave and the very, very skilled. The gaps between good surf are filled with wind or swell that’s too big for its own good.
Stay stoked, and I’ll see you in the water.
Short Range ForecastMostly dry. Very mild (max 17°C on Mon afternoon, min 12°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Warm (max 36°C on Fri afternoon, min 13°C on Wed night). Winds increasing (calm on Tue night, fresh winds from the E by Wed afternoon). | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 9 | SW 11 | SW 11 | SW 13 | SW 12 | SW 12 | SW 12 | SW 14 | SW 13 | SSW 15 | SSW 15 | SSW 16 | SSW 12 | SSW 12 | E 9 | E 10 | E 10 | S 11 | SSE 14 |
Wave Graph | |||||||||||||||||||
861 | 1514 | 1242 | 1545 | 1094 | 897 | 1852 | 3325 | 2305 | 2173 | 3520 | 4709 | 1869 | 1252 | 881 | 913 | 484 | 403 | 277 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross-off | cross-off | off | cross-off | cross | on | cross-on | cross-on | cross-on | cross-on | on | cross-off | cross | cross-on | cross-off |
High Tide | 00:52AM1.07m | 1:40PM1.10m | 1:44AM1.20m | 2:15PM1.24m | 2:18AM1.33m | 2:43PM1.39m | 2:47AM1.44m | 3:10PM1.52m | 3:15AM1.54m | 3:36PM1.63m | 3:42AM1.60m | 4:02PM1.72m | 4:10AM1.64m | ||||||
Low Tide | 7:28AM0.60m | 7:41PM0.62m | 8:04AM0.46m | 8:16PM0.49m | 8:32AM0.33m | 8:46PM0.36m | 8:58AM0.21m | 9:14PM0.25m | 9:23AM0.11m | 9:41PM0.15m | 9:49AM0.04m | 10:09PM0.09m | |||||||
— | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — | |
5:53 | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | |
mm | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 14 | 16 | 17 | 13 | 15 | 16 | 16 | 17 | 17 | 16 | 20 | 27 | 23 | 29 | 36 | 32 |
Feels °C | 12 | 15 | 14 | 14 | 15 | 15 | 12 | 13 | 14 | 15 | 11 | 11 | 10 | 18 | 26 | 21 | 27 | 32 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | SW 11 | SW 13 | SW 12 | SW 12 | SW 12 | SW 14 | SW 13 | SSW 15 | SSW 15 | SSW 16 | SSW 12 | SSW 12 | S 12 | E 10 | E 10 | E 10 | E 10 |
400 | 1514 | 1242 | 1545 | 1094 | 897 | 1852 | 3325 | 2305 | 2173 | 3520 | 4709 | 1869 | 1252 | 553 | 913 | 484 | 314 | 266 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | SW 14 | E 10 | SE 11 | SSW 15 | ESE 11 | E 10 | SSW 16 | SW 12 | WSW 12 | WSW 13 | S 16 | — | SW 12 | S 12 | S 11 | S 11 | S 11 |
1 | 1 | 284 | 2 | 5 | 411 | 11 | 2 | 848 | 836 | 504 | 69 | 132 | — | 463 | 535 | 483 | 403 | 220 | |
Swell 3 Height (m) Direction Period (s) | — | — | E 9 | — | E 9 | SE 11 | SE 11 | — | — | E 9 | — | — | — | — | S 15 | SW 12 | S 14 | SSE 14 | SSE 14 |
— | — | 2 | — | 2 | 4 | 5 | — | — | 2 | — | — | — | — | 113 | 195 | 100 | 81 | 277 | |
Wind waves Height (m) Direction Period (s) | SW 9 | — | — | — | — | — | — | — | — | — | ESE 4 | E 5 | E 7 | E 8 | E 9 | — | — | W 4 | ENE 3 |
861 | — | — | — | — | — | — | — | — | — | 31 | 102 | 587 | 697 | 881 | — | — | 10 | 3 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 142 | 3 | 0 | 3 | 0 | 0 | 2 | 0 | 0 | 0 | 172 | 197 | 561 | 197 | 140 | 140 | 0 | 0 | 31 |
Best forecast wave conditions in Eastern Cape (South) | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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 16 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.











