Surf Forecasts:
Black Rocks Jetty surf forecast from 12 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 1AM (local time) - 8ft (2.5m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 4AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,330 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 7PM (local time) - 3.5ft (1.1m), 13s 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 Saturday (Sep 12) at 7PM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.5m and 15s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Black Rocks Jetty in the next 16 days are 2.5m 16s and forecast to arrive on Wednesday (Sep 16) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 7s period and expected on Wednesday (Sep 16) at 7PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sat 12th Sep) | 3.5ft (1.1m) 13s |
| Best Surf | 1AM (Wed 16th Sep) | 8ft (2.5m) 16s |
| Most Powerful | 4AM (Wed 16th Sep) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Righto, grab a coffee and settle in. Let’s talk about what’s on offer at Black Rocks Jetty. This is a super consistent reef break, exposed to the southwest, so it picks up a heap of energy. Water temp is sitting at 75°F, which is normal for this time of year – no surprises there.
We’ve got a solid run of surf starting this Saturday morning, September 12. The swell’s coming from the SSW at 5ft with a long 14-second period, giving you a proper groundswell. The combined energy is moderate at 784, and with a glassy, near-calm wind from the WNW, conditions are looking clean. This is a good, friendly size. Sunday, September 13, is a real standout. The morning brings 5ft SSW swell with a very long 17-second period – that’s proper energy (1820), and glassy conditions again. The afternoon bumps up to 6ft, same direction, period dropping just a touch to 16 seconds, but still excellent. This is the pick of the bunch for experienced surfers – clean, powerful, and consistent. The long period means these waves will have plenty of shape and punch, though at a reef break like this, it should handle the energy beautifully. Crowds are possible here, so keep an eye out.
Now, Tuesday afternoon, September 15, offers another highlight. The swell is 6ft from the SSW, 17-second period, and the combined energy jumps to a strong 2404. The wind is dead calm – glass – so expect some real quality waves even if it is a touch bigger.
The following week drops off in size. From Friday, September 18, into the weekend, you’re looking at smaller 3ft SW swells with shorter periods. The energy drops right off into the low hundreds. There are some glassy windows, but the power just isn’t there. Monday, September 21, brings a slight lift with 4ft SSW swell and a clean cross-off wind – worth a look for a cruisey session.
Then we get a second wind around Tuesday, September 22. Afternoon sees 5ft SSW swell with a long 19-second period and a combined energy of 1753. Glassy conditions – that’s a proper session for those in the know. Wednesday, September 23, keeps the quality going with 5ft SSW, 15-second period, clean and glassy. A fine way to finish the run.
After that, the last few days of September get small and a bit wind-affected. The swell drops under 3ft, and onshore winds mess up the surface. Not much to write home about.
So, if you’re looking for the true standout, lock in Sunday, September 13. The combination of size, long period, and glassy winds is as good as it gets. Tuesday, September 15, afternoon is also a ripper. The rest of the window has fun moments, but those two days are the ones.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Sat morning, min 21°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed night. Warm (max 22°C on Tue afternoon, min 20°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 14 | SSW 14 | SW 19 | SSW 17 | SSW 16 | SSW 14 | SW 14 | SW 13 | SW 12 | SW 18 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 13 | S 12 | S 12 | S 11 | SW 18 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 763 | 624 | 738 | 1491 | 1857 | 1261 | 907 | 711 | 442 | 1263 | 1515 | 3173 | 2721 | 2167 | 1341 | 775 | 416 | 344 | 151 | 370 | 361 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | off | glassy | glassy | glassy | on | cross-on | cross | cross | glassy | glassy | on | glassy | glassy | glassy | cross-on | glassy | cross-on | glassy | glassy |
High Tide | 1:45PM0.58m | 1:50AM0.57m | 2:03PM0.56m | 2:16AM0.52m | 2:18PM0.53m | 2:40AM0.47m | 2:31PM0.50m | 3:01AM0.42m | 2:43PM0.47m | 3:20AM0.36m | 2:53PM0.44m | 3:39AM0.31m | 2:54PM0.40m | 3:58AM0.26m | |||||||
Low Tide | 7:46PM0.10m | 7:56AM0.09m | 8:14PM0.10m | 8:17AM0.14m | 8:40PM0.12m | 8:34AM0.18m | 9:05PM0.14m | 8:41AM0.22m | 9:29PM0.18m | 8:31AM0.25m | 9:55PM0.21m | 7:43AM0.27m | 11:20PM0.25m | ||||||||
 |  |  | | |  | | | | | | | | |  | | | | |  | | |
 | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | — |
Temp °C | 23 | 23 | 21 | 22 | 21 | 21 | 23 | 23 | 21 | 21 | 22 | 20 | 21 | 21 | 21 | 22 | 22 | 21 | 23 | 22 | 22 |
Feels °C | 24 | 24 | 22 | 22 | 22 | 23 | 22 | 23 | 21 | 21 | 23 | 19 | 21 | 22 | 22 | 23 | 22 | 23 | 23 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 17 | SSW 16 | SSW 14 | SW 14 | SW 13 | SW 12 | SW 18 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 13 | S 12 | S 12 | S 11 | S 11 | SW 16 |
| kJ | 763 | 624 | 538 | 1491 | 1857 | 1261 | 907 | 711 | 442 | 1263 | 1515 | 3173 | 2721 | 2167 | 1341 | 775 | 416 | 344 | 151 | 149 | 361 |
Swell 2 Height (m) Direction Period (s) | NE 11 | NE 11 | SW 19 | SSW 12 | — | — | S 23 | SSW 22 | S 7 | S 8 | S 8 | — | NE 7 | ENE 7 | NE 10 | NE 7 | NE 7 | NE 7 | NE 11 | SW 18 | NE 11 |
| kJ | 41 | 40 | 738 | 329 | — | — | 11 | 45 | 146 | 235 | 130 | — | 11 | 30 | 32 | 18 | 41 | 34 | 71 | 370 | 73 |
Swell 3 Height (m) Direction Period (s) | SW 23 | SW 22 | — | — | — | — | — | — | SW 19 | SW 12 | SSW 10 | — | — | — | — | ENE 10 | SW 13 | NE 10 | SSW 16 | NE 5 | S 10 |
| kJ | 21 | 73 | — | — | — | — | — | — | 384 | 178 | 167 | — | — | — | — | 9 | 138 | 16 | 100 | 23 | 71 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 3 | SSE 7 | SSE 8 | SSE 8 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 8 | 387 | 456 | 592 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 2 | 1 | 1 | 0 | 0 | 5 | 0 | 0 | 0 | 2 | 0 | 9 | 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.
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