
Surf Forecasts:
J-Bay surf forecast from 31 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 11PM (local time) - 10ft (3.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 6 Aug, 11PM (local time) - 15ft (4.5m), 15s period, SW swell with 8,449 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 8PM (local time) - 7.5ft (2.3m), 11s period with E 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 02) at 8PM. The primary swell is predicted to be 2.3m and 11s period with a secondary swell of 2.1m and 11s. Another secondary swell of 1.1m and 13s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at J-Bay in the next 16 days are 4.5m 15s and forecast to arrive on Thursday (Aug 06) at 11PM. Winds are predicted to be cross-shore 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 (Aug 04) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 2nd Aug) | 7.5ft (2.3m) 11s |
| Best Surf | 11PM (Wed 5th Aug) | 10ft (3.0m) 14s |
| Most Powerful | 11PM (Thu 6th Aug) | 15ft (4.5m) 15s |
Table - best surf conditions forecast for J-Bay over the next 16 days.
The Lowdown
Right, listen up. Rusty here. Let’s have a proper look at what J-Bay has got cooking for us over the next couple of weeks.
We’re in for a bit of a mixed bag, to be honest. The first few days are a write-off, proper messy with cross-onshore winds and lumpy, choppy conditions. The swell is there, but it’s not doing us any favours. Friday the 31st and Saturday the 1st are a firm "stay at home" situation. Then Sunday the 2nd has a bit of size but the wind is still cross-on, making it marginal at best. You’ll be battling ripples.
But then, look at Monday the 3rd. That’s where it starts to get interesting. The morning is glassy, dead flat calm. The swell is a clean 5.6ft from the ESE at 10 seconds. The combined energy is moderate (1149). That’s the kind of session that’s excellent for experienced surfers – clean, no wind, and proper waves rolling in. The water temp is about average for this time of year, so nothing wild there.
The star of the show, however, is shaping up for Thursday the 6th of August. Don’t let the "marginal" label fool you. The morning has a solid 13.1ft SW groundswell with a 13-second period, and the wind is clean cross-off from the WSW. The combined energy is a massive 9334 – that’s strong to very strong wave energy. This is big, powerful, expert-level surf. The afternoon is still excellent, dropping to 8.2ft but still with a clean cross-off breeze. If you’re experienced, that Thursday morning is the standout. It’s going to be a raw, powerful day at the point.
Wednesday the 5th is also worth a look. The morning is glassy again with a 3.6ft, very long-period groundswell from the SW (16 seconds). That’s a classic long-period groundswell that will wrap in beautifully. The energy is moderate (997), but those long gaps between sets make paddling out easier. The afternoon, though, jumps to 9.8ft with a 15-second period – that’s a lot of power, but the wind goes cross-shore, so it won’t be as clean as the morning.
The second week gets a bit more unpredictable. Monday the 10th has clean cross-off winds and a solid 6.6ft swell, but it’s not quite the monster of the 6th. Wednesday the 12th morning has offshore wind and a 9.8ft SSE swell, which is a proper surprise, but the clouds and a bit of chop in the afternoon could mess with it. The weekend of the 15th and 16th looks like a return to smaller, cleaner conditions but with less energy. The crowds at J-Bay can be a thing, especially on the good days, so get in early if you can.
The Pick: Without a doubt, Thursday the 6th of August morning. That 13.1ft SW groundswell with clean cross-off wind is the big one. It’s a day for the experts only. The Tuesday the 4th morning and Monday the 3rd morning are also excellent, but they’re smaller. If you want a glassy, long-period session, Wednesday the 5th morning is your best bet.
Short Range ForecastMostly dry. Warm (max 22°C on Sun afternoon, min 11°C on Fri night). Winds decreasing (fresh winds from the E on Fri afternoon, calm by Sun night). | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Tue afternoon, min 14°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
AM | PM | 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 13 | E 9 | E 7 | E 8 | E 8 | E 8 | E 12 | ESE 11 | ESE 11 | ESE 10 | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 |
Wave Graph | |||||||||||||||||||||
732 | 755 | 635 | 747 | 770 | 728 | 1269 | 1187 | 808 | 596 | 643 | 721 | 646 | 497 | 347 | 516 | 2326 | 3009 | 6650 | 7140 | 7239 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | glassy | on | cross-off | off | cross-off | cross-off | cross-off | cross | off | cross-off | cross | cross |
High Tide | 4:59PM1.64m | 5:04AM1.57m | 5:27PM1.66m | 5:33AM1.54m | 5:57PM1.64m | 6:05AM1.48m | 6:29PM1.60m | 6:40AM1.39m | 7:06PM1.52m | 7:22AM1.28m | 7:53PM1.41m | 8:17AM1.16m | 8:59PM1.29m | ||||||||
Low Tide | 10:44AM0.07m | 11:04PM0.18m | 11:12AM0.07m | 11:34PM0.18m | 11:40AM0.09m | 00:07AM0.21m | 12:10PM0.15m | 00:42AM0.27m | 12:44PM0.24m | 1:24AM0.35m | 1:25PM0.35m | 2:18AM0.45m | 2:21PM0.48m | 3:39AM0.54m | |||||||
7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | |
— | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 17 | 18 | 15 | 15 | 20 | 15 | 18 | 22 | 20 | 21 | 23 | 22 | 27 | 28 | 16 | 16 | 17 | 16 | 16 | 16 | 15 |
Feels °C | 11 | 12 | 10 | 11 | 15 | 11 | 16 | 20 | 19 | 19 | 20 | 18 | 24 | 25 | 13 | 15 | 16 | 15 | 12 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 13 | E 12 | SW 13 | ESE 11 | ESE 10 | ESE 10 | E 10 | SW 12 | SW 12 | SW 11 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 |
732 | 504 | 324 | 161 | 125 | 215 | 1269 | 386 | 808 | 596 | 544 | 450 | 646 | 497 | 347 | 516 | 2326 | 3009 | 6650 | 7140 | 7239 | |
Swell 2 Height (m) Direction Period (s) | — | — | SW 18 | SW 16 | SW 15 | S 10 | SW 13 | S 9 | SW 12 | SW 12 | SW 13 | SW 13 | ESE 10 | E 9 | E 10 | SW 10 | E 9 | E 9 | E 9 | E 10 | — |
— | — | 12 | 40 | 76 | 18 | 286 | 15 | 278 | 325 | 643 | 721 | 370 | 251 | 188 | 212 | 133 | 106 | 61 | 64 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 13 | S 10 | — | SSW 14 | SSW 14 | S 13 | — | — | S 18 | SW 6 | ESE 10 | — | — | — | — | — |
— | — | — | — | — | 3 | 16 | — | 268 | 232 | 3 | — | — | 6 | 54 | 154 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | E 9 | E 9 | E 7 | E 8 | E 8 | E 8 | — | ESE 11 | — | — | — | — | W 4 | WSW 5 | — | SW 6 | — | — | — | — | ENE 4 |
497 | 755 | 635 | 747 | 770 | 728 | — | 1187 | — | — | — | — | 18 | 67 | — | 62 | — | — | — | — | 55 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 141 | 197 | 140 | 172 | 140 | 140 | 31 | 31 | 0 | 0 | 31 | 0 | 0 | 3 | 0 | 0 | 3 | 0 | 3 | 3 | 60 |
Best forecast wave conditions in Eastern Cape (South) | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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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.











