
Surf Forecasts:
Black Rocks Jetty surf forecast from 31 Jul 2026:
- Best quality surf: Friday 31 Jul, 7PM (local time) - 5.5ft (1.7m), 15s period, SSW swell with offshore winds.
- Most powerful swell: Saturday 1 Aug, 10AM (local time) - 6ft (1.8m), 15s period, SSW swell with 1,447 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 7PM (local time) - 5.5ft (1.7m), 15s period with SSW swell.
Best Forecast Surf Conditions for Black Rocks Jetty this week:
The surf forecast for Black Rocks Jetty over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 31) at 7PM. The primary swell is predicted to be 1.7m and 15s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Black Rocks Jetty in the next 16 days are 1.8m 15s and forecast to arrive on Saturday (Aug 01) at 10AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Thursday (Aug 06) at 7PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Fri 31st Jul) | 5.5ft (1.7m) 15s |
| Best Surf | 7PM (Fri 31st Jul) | 5.5ft (1.7m) 15s |
| Most Powerful | 10AM (Sat 1st Aug) | 6ft (1.8m) 15s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Right, cos’d up in the shack with the 16-day picture for the Black Rocks Jetty stretch. This is an exposed reef break, picky about its swell direction from the southwest, and it’s strictly for advanced crew – this is not a learner’s zone. The water is currently sitting at 77°, which is a touch warmer than normal for this time of year, a nice little anomaly to note.
We’ve got a run of surf coming in right from the start. Friday morning kicks off with a clean 6ft SSW groundswell running a very long 16 seconds, and the wind is glassy out of the NNE. The combined energy is pumping at 1305, so there’s plenty of push. That big period means the waves will have great shape and plenty of grunt, but it also means longer lulls between sets, so be patient. This is excellent, but only for the experienced. Friday afternoon stays glassy with a new SSW wind, same size, still solid.
Saturday morning (August 1) is another gem: 6ft SSW swell, 15-second period, and glassy conditions with a northerly breeze. The energy is up at 1447. Best of the bunch so far. By Saturday afternoon the wind swings onshore from the SSW, turning it cross-on and dropping the quality to marginal, so get your session in early. Sunday morning (August 2) cleans right up again – glassy, 4ft SSW groundswell, 15 seconds, and a combined energy of 1062. A solid, clean morning wave.
We then hit a lull. From Monday afternoon through to the end of the first week, the swell drops below 3ft and the energy falls under 400. The conditions are sometimes glassy, but there’s just not enough wave to get excited about. That quiet spell runs for about four or five days, with only knee-high dribble and very ordinary conditions. You’re better off waiting.
Then it lights up again. Saturday, August 8, brings a return of proper groundswell – 3ft, sure, but with a very long 17-second period out of the southwest, and glassy morning winds. The energy climbs to 559. It’s a sign of things to come.
The standout period hits on Sunday, August 9. Morning is dead calm, 6ft SW swell with a 16-second period, and the energy is huge at 1463. It’s excellent for experts. That afternoon the swell bumps to 7ft from the same direction, period still solid at 15 seconds, and the energy surges to 2126. The wind stays cross-off from the ESE, keeping it clean. That 7ft is big – this is expert territory, not a place for the faint-hearted.
Monday, August 10, is another cracker: 7ft SSW groundswell, glassy morning with calm winds, energy at 1700. The following days hold good 5ft to 5ft swell through to Wednesday, although some periods get a cross-on wind which knocks the shine off. The real highlight though, is Saturday, August 15. That morning delivers 5ft SW groundswell, a very long 17-second period, glassy winds, and combined energy of 1466. It’s excellent. The afternoon pushes to 7ft but gets a cross-on southerly, so stick to the early session.
Overall, the best on offer is Sunday, August 9, morning session, with its 6ft SW groundswell, 16-second period, glassy calm, and huge energy – that is the day to circle, though it’s a couple of weeks out, so keep an eye on it. Monday the 10th and Saturday the 15th mornings are also true standouts for the experienced surfer. Crowds can be a factor here sometimes, so expect company on the good glassy days.
Stay safe out there.
Rusty
Short Range ForecastLight rain (total 4mm), mostly falling on Fri afternoon. Warm (max 25°C on Sat morning, min 22°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Warm (max 25°C on Tue morning, min 23°C on Mon 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) | SSW 16 | SSW 15 | SW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 15 | SSW 16 | SW 14 | SW 14 | SW 13 | SW 13 | S 13 | S 13 | S 12 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SSW 13 |
Wave Graph | |||||||||||||||||||||
1305 | 1255 | 1031 | 1447 | 1389 | 921 | 711 | 1112 | 752 | 557 | 398 | 208 | 167 | 212 | 141 | 229 | 226 | 288 | 218 | 178 | 212 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | cross-on | glassy | glassy | on | cross | glassy | glassy | glassy | on | glassy | glassy | glassy | on | cross | cross-on | cross-off | glassy |
High Tide | 2:19PM0.52m | 1:57AM0.56m | 2:43PM0.53m | 2:27AM0.55m | 3:09PM0.53m | 3:00AM0.53m | 3:39PM0.52m | 3:37AM0.48m | 4:14PM0.50m | 4:25AM0.43m | 4:58PM0.47m | 5:43AM0.37m | 6:08PM0.43m | ||||||||
Low Tide | 8:03PM0.17m | 8:26AM0.06m | 8:32PM0.17m | 8:52AM0.08m | 9:04PM0.18m | 9:19AM0.12m | 9:42PM0.19m | 9:50AM0.16m | 10:30PM0.20m | 10:28AM0.20m | 11:42PM0.22m | 11:27AM0.26m | 1:48AM0.21m | ||||||||
6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | |
— | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | |
mm | — | 2 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 2 |
Temp °C | 24 | 24 | 23 | 25 | 24 | 23 | 25 | 24 | 24 | 24 | 24 | 23 | 25 | 25 | 23 | 24 | 23 | 23 | 24 | 24 | 23 |
Feels °C | 26 | 26 | 26 | 27 | 25 | 25 | 26 | 25 | 27 | 26 | 26 | 24 | 27 | 28 | 26 | 27 | 25 | 25 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 15 | SSW 16 | SW 14 | SW 14 | SW 13 | SW 13 | S 13 | S 13 | NE 10 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SSW 13 |
1305 | 1255 | 1031 | 1447 | 1389 | 921 | 711 | 1112 | 752 | 557 | 398 | 208 | 167 | 212 | 80 | 229 | 226 | 288 | 218 | 178 | 212 | |
Swell 2 Height (m) Direction Period (s) | NE 8 | NE 5 | SSW 18 | NE 8 | ESE 9 | SSW 18 | SSW 13 | NE 6 | SSW 19 | S 18 | S 16 | NE 10 | SW 13 | SW 12 | S 12 | S 12 | NE 6 | NE 11 | NE 10 | SSE 8 | NE 6 |
10 | 13 | 318 | 25 | 31 | 491 | 351 | 15 | 379 | 390 | 257 | 80 | 132 | 92 | 141 | 98 | 22 | 80 | 77 | 19 | 36 | |
Swell 3 Height (m) Direction Period (s) | — | — | NE 4 | NE 10 | — | SSW 18 | NE 6 | S 22 | SSE 9 | SSE 9 | NE 6 | S 15 | NE 10 | NE 6 | SW 16 | NE 10 | S 11 | SSE 11 | SSE 6 | ENE 10 | S 6 |
— | — | 7 | 4 | — | 124 | 11 | 85 | 8 | 8 | 30 | 155 | 64 | 19 | 125 | 65 | 39 | 39 | 14 | 9 | 19 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NE 7 | NE 6 | — | — | — | — | — | — | — | — | — | NE 6 | — |
— | — | — | — | — | — | — | — | 21 | 27 | — | — | — | — | — | — | — | — | — | 46 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3 | 1 | 1 | 0 | 0 |
Best forecast wave conditions in Réunion Island | |||||||||||||||||||||
Best forecast wave conditions in Reunion | |||||||||||||||||||||
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Information about the Black Rocks Jetty Surf forecast
The above surf forecast table for Black Rocks Jetty provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Black Rocks Jetty can be found by selecting the local surf guide option on the grey menu. Our Black Rocks Jetty 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 (Black Rocks Jetty) 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 Black Rocks Jetty 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.
Black Rocks Jetty is 6 km (4 miles) from Saint-Paul. If you plan a holiday in Réunion Island, look for hotels and other accommodation in Saint-Paul. Saint-Paul has rooms for a wide range of budgets as well as car hire and transport links.











