
Surf Forecasts:
J-Bay surf forecast from 12 Jul 2026:
- Best quality surf: Thursday 16 Jul, 8AM (local time) - 10ft (3.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 17 Jul, 8AM (local time) - 11ft (3.5m), 12s period, SW swell with 3,196 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 11PM (local time) - 5.5ft (1.7m), 8s period with ESE 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 Monday (Jul 13) at 11PM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 0.9m 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 16 days are 3.5m 12s and forecast to arrive on Friday (Jul 17) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Wednesday (Jul 15) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 13th Jul) | 5.5ft (1.7m) 8s |
| Best Surf | 8AM (Thu 16th Jul) | 10ft (3.0m) 14s |
| Most Powerful | 8AM (Fri 17th Jul) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for J-Bay over the next 16 days.
Alright folks, Rusty here. Let’s have a look at what’s shaping up for J-Bay.
The pattern ahead is a slow burn with a huge payoff. We’ve got some smaller, cleaner surf early in the week, but then things absolutely fire up for the second half of the run. The standout window is clearly the final weekend and into the next week, with some proper, heavy groundswells lining up. The water is sitting at 64°F which is a bit colder than normal for this time of year, so don’t forget a decent steamer.
Tuesday 14 July is where it starts to get interesting. The morning is magic – glassy conditions with a clean 5ft swell from the ESE. It’s not huge, but with that light wind and clean surf, it’ll be a fun, user-friendly session. The afternoon stays clean with a cross-off breeze and a 5ft swell from the E. Moderate wave energy (545) for the morning.
Wednesday 15 July is a bit smaller, with a clean 4ft easterly swell in the morning and a light offshore wind. It’s a good day for the longboard or a bigger fish, but the energy is dropping (288).
Now, Thursday 16 July is where the real groundswell arrives. The morning is the standout: a powerful 10ft SW groundswell with a long 14-second period, glassy conditions, and a very strong energy reading (3001). This is a serious session for experienced surfers only. The wave quality will be world-class, but that size and power demand respect. The afternoon stays excellent with an 8ft SW swell and clean cross-off winds.
Friday 17 July keeps the momentum going. Another 10ft SW groundswell in the morning, though the wind is a bit stronger. The afternoon is the pick – glassy again with an 8ft SW swell, offering a cleaner, more manageable window for the same power.
After a bit of a bumpy, poor day on Saturday 18th, Sunday 19 July cleans up nicely. A 4ft SW groundswell with a 13-second period and clean cross-off winds in the morning. It’s a great recovery day with solid energy (885) for the size.
Monday 20 July is a bit more marginal, with onshore winds and smaller swell, but then Tuesday 21 July kicks up again. The afternoon sees a very long period 16-second SSW groundswell at 6ft, but the wind is strong. It’s a bit raw, but the energy is there (2331).
Wednesday 22 July is the absolute bullseye. The morning is a beast: 10ft SSW groundswell, 14-second period, light cross-off wind, and an enormous energy reading of 3883. This is a world-class, heavy-duty session for experts. The afternoon holds the same size but with a cross-shore wind.
Thursday 23 July is still firing. A clean 7ft SW groundswell with a 13-second period and offshore wind in the morning. The afternoon is bigger again at 10ft SW.
Friday 24 July is where it gets insane. Both the morning and afternoon see a colossal 15ft SW groundswell with a 14-15 second period. The energy readings are massive (8987 and 9047). The winds are only light, but it’s a cross-onshore, so the lineup will be a beast. This is for experts only.
Saturday 25 July and Sunday 26 July are the absolute pinnacle. The morning of the 25th: 13ft SW groundswell, 15-second period, glassy conditions, and exceptional energy (6165). The afternoon is the same size and glassy. The 26th holds an 12ft SSW groundswell, glassy in the morning, with energy readings over 5000. This is big, clean, powerful surf – the kind of weekend that makes you remember why you live for this.
Monday 27 July winds down with a 6ft SW groundswell, 16-second period, and clean conditions in the morning. A solid, quality end to the run.
So, the best on offer? No question: Wednesday 22 July morning and Saturday 25 July morning are the standouts. The 22nd has that perfect blend of size, period, and clean wind, while the 25th is a massive, glassy, long-period groundswell. Both are expert-only territory. The crowd at J-Bay can be an issue, but with that size, it’ll keep the lineup spread out.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Fri afternoon. Warm (max 20°C on Thu afternoon, min 13°C on Fri night). Winds increasing (calm on Thu morning, fresh winds from the ENE by Sat morning). | ||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 11 | SSW 11 | E 8 | E 8 | ESE 8 | ESE 9 | E 9 | E 9 | E 9 | E 9 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SSW 11 | SW 10 | SSE 13 | SW 13 | SW 13 |
Wave Graph | |||||||||||||||||||||
631 | 444 | 491 | 386 | 432 | 432 | 380 | 281 | 202 | 173 | 1105 | 2842 | 2254 | 2045 | 2693 | 1886 | 1082 | 284 | 285 | 553 | 466 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | on | cross-off | glassy | cross-off | off | off | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross-off | cross-off |
High Tide | 2:19PM1.39m | 2:36AM1.57m | 3:09PM1.52m | 3:25AM1.64m | 3:55PM1.63m | 4:10AM1.67m | 4:39PM1.70m | 4:52AM1.65m | 5:20PM1.72m | 5:32AM1.59m | 6:00PM1.69m | 6:10AM1.50m | 6:39PM1.62m | 6:48AM1.39m | |||||||
Low Tide | 8:21PM0.28m | 8:58AM0.14m | 9:15PM0.18m | 9:43AM0.05m | 10:03PM0.12m | 10:25AM0.01m | 10:48PM0.10m | 11:04AM0.00m | 11:31PM0.12m | 11:41AM0.04m | 00:12AM0.19m | 12:17PM0.12m | 00:52AM0.28m | 12:52PM0.23m | |||||||
— | — | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | |
5:27 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | 5:30 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — |
Temp °C | 18 | 15 | 16 | 18 | 16 | 18 | 20 | 16 | 17 | 19 | 16 | 18 | 20 | 17 | 16 | 15 | 15 | 15 | 18 | 16 | 21 |
Feels °C | 14 | 13 | 15 | 18 | 16 | 17 | 18 | 14 | 15 | 16 | 15 | 17 | 18 | 14 | 12 | 13 | 14 | 9 | 13 | 13 | 18 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 11 | E 8 | E 8 | ESE 8 | ESE 9 | E 9 | E 9 | E 9 | E 9 | SW 10 | SW 14 | SW 13 | E 10 | SW 12 | SW 11 | SSW 11 | SW 10 | E 7 | SW 13 | SW 13 |
631 | 444 | 355 | 386 | 432 | 432 | 380 | 281 | 202 | 173 | 745 | 2842 | 2254 | 138 | 2693 | 1886 | 1082 | 284 | 128 | 553 | 466 | |
Swell 2 Height (m) Direction Period (s) | W 12 | W 11 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SW 13 | SW 12 | SW 12 | SW 15 | E 10 | E 10 | — | E 10 | E 10 | S 13 | S 10 | SW 10 | E 8 | E 9 |
11 | 10 | 296 | 265 | 130 | 86 | 60 | 61 | 53 | 89 | 1105 | 159 | 165 | — | 104 | 98 | 125 | 254 | 222 | 230 | 184 | |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | SSW 14 | S 9 | SSE 9 | SSE 9 | SSW 9 | WSW 10 | SW 17 | E 10 | — | — | — | — | — | S 18 | SSE 11 | SSE 13 | S 10 | SSE 12 |
10 | 8 | 8 | 21 | 45 | 27 | 28 | 32 | 33 | 145 | 149 | — | — | — | — | — | 6 | 164 | 285 | 255 | 235 | |
Wind waves Height (m) Direction Period (s) | ESE 6 | E 7 | E 8 | — | — | — | — | WSW 4 | SW 6 | SW 7 | — | — | — | SW 13 | — | — | E 10 | E 6 | — | — | — |
242 | 358 | 491 | — | — | — | — | 7 | 65 | 131 | — | — | — | 2045 | — | — | 245 | 92 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 197 | 140 | 31 | 19 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 3 | 3 | 0 | 31 | 141 | 140 | 0 | 0 |
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.











