
Surf Forecasts:
J-Bay surf forecast from 29 Jul 2026:
- Best quality surf: Thursday 30 Jul, 5AM (local time) - 6ft (1.9m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 5AM (local time) - 7ft (2.2m), 14s period, SW swell with 1,788 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 5AM (local time) - 6ft (1.9m), 13s 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 Thursday (Jul 30) at 5AM. The primary swell is predicted to be 1.9m and 13s period with a secondary swell of 1.5m and 9s. 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 2.2m 14s and forecast to arrive on Wednesday (Jul 29) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Aug 04) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 30th Jul) | 6ft (1.9m) 13s |
| Best Surf | 5AM (Thu 30th Jul) | 6ft (1.9m) 13s |
| Most Powerful | 5AM (Wed 29th Jul) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for J-Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming down the line for J-Bay over the next couple of weeks.
Right off the bat, it’s a bit of a slow start. The first few days are not looking good at all. We’ve got a solid 7 ft SW swell running on Wednesday the 29th of July, but that east wind is ruining it—cross-on and choppy, with a combined energy of 1927 (moderate to strong). That pattern sticks around through Thursday, Friday, and into the weekend. The wind stays crossed-up and the surf quality is poor, so don’t bother waxing up just yet. On Saturday the 1st of August, the swell drops to 8 ft but it’s short-period windswell (8 seconds) and the wind is still cross-on, so it’s messy and marginal. The energy is moderate (1119-1248).
Now, Sunday the 2nd of August shows a little glimmer. The wind goes light cross-on, finally, and the swell is the same 8 ft from the east. The period is still short (9 seconds), but the energy is ramping up (2074). It’s still a marginal call, but it’s a step in the right direction.
The standout window starts Monday the 3rd of August. That’s when things come together. Monday morning we’ve got a clean 6 ft E swell with a light cross-off wind from the SSW. The energy is moderate (1116), but the conditions are clean. By Monday afternoon, it goes glassy with a 4 ft SW groundswell (13 seconds). That’s a beautiful combination for J-Bay. The water temp is about average for this time of year.
Tuesday the 4th of August keeps the love going with a clean 5 ft SW swell (13 seconds) and light cross-off winds in the morning. The energy is good (1056). Tuesday afternoon gets a little cross-shore wind, but it’s still a decent session.
The real highlight looks to be Thursday the 6th of August. Wednesday the 5th builds nicely: a clean 6 ft SSW groundswell with a very long 15-second period, and light cross-off wind. The energy is strong (2249). Then Thursday morning—brace yourselves—we’ve got a 10 ft SW swell with a 13-second period, glassy conditions, and a combined energy of 5882 (very strong). That is exceptional. This is a big wave for J-Bay, so it’s for experienced surfers only. The water’s going to be a bit cooler than usual (anomaly is notable), but with that kind of power and no wind, it’s going to be a day to remember. The afternoon gets a bit bumpy with a moderate cross-off wind, but still clean.
We get a few more solid days after that. Friday the 7th of August is still pumping with 13 ft SW swell (14 seconds) in the morning—very strong energy (6275). The wind is cross-off, but that’s a lot of water. Saturday the 8th has an 8 ft SW swell with a fresh offshore wind in the morning, but that afternoon the wind cranks up to near gale, so it’s a write-off. Sunday the 9th of August keeps the 8 ft SW swell going with fresh offshore winds, but there’s some rain around.
Monday the 10th of August is another clean, solid day with an 8 ft SW swell (11 seconds) and light offshore wind. The energy is moderate (1754). Tuesday the 11th of August is also good, with a 6 ft S swell (11 seconds) and clean conditions.
The second week rounds out with some smaller, cleaner days, but nothing that matches the power of that Thursday the 6th. The 13th of August sees an 12 ft SW swell return, but the wind goes cross-on, so it’s a bit of a mess.
Overall, the best on offer is Thursday the 6th of August. Glassy, 10 ft SW groundswell, massive energy. That’s the one to circle on your calendar. Monday the 3rd and Tuesday the 4th are also beautiful, clean days for the intermediate crew. Don’t bother with the first week’s mess.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed morning. Very mild (max 18°C on Fri afternoon, min 11°C on Fri night). Winds increasing (light winds from the N on Wed night, fresh winds from the ENE by Fri morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat afternoon, min 12°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | E 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 12 | ESE 11 | ESE 11 | ESE 10 | E 9 | E 9 | SW 11 | SW 11 |
Wave Graph | |||||||||||||||||||||
1387 | 1347 | 1444 | 1127 | 1011 | 919 | 732 | 504 | 826 | 870 | 809 | 762 | 534 | 1018 | 792 | 672 | 555 | 505 | 441 | 308 | 445 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | glassy | on | cross-off | glassy | on | cross-off | cross-off | cross-off | cross |
High Tide | 4:02PM1.53m | 4:06AM1.55m | 4:31PM1.59m | 4:35AM1.57m | 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 | ||||||||
Low Tide | 9:50AM0.16m | 10:04PM0.25m | 10:17AM0.10m | 10:34PM0.20m | 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 | |||||||
7:15 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | |
— | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 16 | 17 | 15 | 16 | 18 | 14 | 17 | 22 | 18 | 19 | 21 | 19 | 20 | 20 | 20 | 24 | 25 | 17 |
Feels °C | 11 | 11 | 13 | 13 | 12 | 12 | 9 | 12 | 8 | 14 | 18 | 15 | 17 | 19 | 18 | 18 | 17 | 17 | 22 | 22 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 | E 8 | ESE 8 | ESE 12 | ESE 11 | ESE 11 | ESE 10 | E 9 | E 9 | E 9 | SW 11 |
1387 | 1347 | 1444 | 1127 | 1011 | 919 | 732 | 504 | 281 | 164 | 123 | 762 | 534 | 1018 | 792 | 672 | 512 | 505 | 441 | 293 | 445 | |
Swell 2 Height (m) Direction Period (s) | — | S 9 | ESE 9 | ESE 9 | — | — | — | — | SW 18 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | E 10 |
— | 7 | 358 | 329 | — | — | — | — | 12 | 41 | 76 | 304 | 331 | 380 | 430 | 581 | 555 | 240 | 224 | 308 | 188 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 10 | S 10 | S 9 | S 9 | SW 14 | — | SW 12 | WSW 11 | SSW 19 | SSW 16 |
— | — | — | — | — | — | — | — | — | — | — | 18 | 16 | 15 | 7 | 186 | — | 282 | 193 | 69 | 223 | |
Wind waves Height (m) Direction Period (s) | ESE 8 | ESE 7 | — | — | E 9 | E 10 | E 9 | E 6 | E 8 | E 8 | E 8 | — | — | — | — | — | — | WSW 12 | WSW 5 | WSW 5 | — |
540 | 305 | — | — | 516 | 529 | 563 | 466 | 826 | 870 | 809 | — | — | — | — | — | — | 353 | 41 | 37 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 197 | 197 | 6 | 60 | 197 | 31 | 172 | 197 | 140 | 141 | 140 | 2 | 0 | 19 | 0 | 0 | 19 | 0 | 0 | 2 | 19 |
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.










