Surf Forecasts:
Black Rocks Jetty surf forecast from 23 Aug 2026:
- Best quality surf: Friday 28 Aug, 7AM (local time) - 11ft (3.5m), 17s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 7PM (local time) - 13ft (4.0m), 16s period, SSW swell with 7,505 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 7PM (local time) - 7ft (2.2m), 14s period with SW 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 Sunday (Aug 23) at 7PM. The primary swell is predicted to be 2.2m and 14s period. 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 4.0m 16s and forecast to arrive on Friday (Aug 28) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 8s period and expected on Sunday (Aug 30) at 4PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 23rd Aug) | 7ft (2.2m) 14s |
| Best Surf | 7AM (Fri 28th Aug) | 11ft (3.5m) 17s |
| Most Powerful | 7PM (Fri 28th Aug) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Alright, let’s break it down. This is Rusty, and I’m looking at the same setup for the Black Rocks Jetty, but in feet and miles per hour, because that’s how some of you roll.
The water’s about 77°F on the 23rd, which is a touch warmer than usual for this time of year, so you’ll be fine in a shorty or just boardies.
We kick off on Sunday, the 23rd of August. Black Rocks Jetty is the only spot. It’s a reef break that’s very consistent, and it loves a south-west swell. The best of the early action is Sunday morning. We’ve got a solid 7.9ft swell from the SSW, with a 14-second period, so that’s a proper groundswell. The wind is glassy, dead calm from the WNW at 3 mph, which is about as good as it gets. The combined energy is pumping at 2313, so there’s plenty of push. This is for experienced surfers only, as it’s over 5ft. Sunday afternoon is just as good, with 7.2ft and glassy conditions, but the wind is completely calm. This is the standout of the first week.
Monday the 24th keeps the run going. Morning session has a clean 7.2ft swell from the SSW, with a 15-second period, and a light offshore breeze from the NNE at 6 mph. That’s clean, lined-up waves. Energy is massive at 2368. The afternoon is glassy again with a 7.5ft swell. This is top-tier stuff.
Tuesday the 25th drops a little. The morning is 5.2ft, but the wind is cross-shore, which will mess up the face. Not the best. The afternoon is better, with a cross-offshore wind, so it’s cleaner, but still only 5.2ft. Energy has dropped to 797.
Wednesday the 26th is a mixed bag. The morning is glassy with 5.2ft, but the real standout is the afternoon. The swell drops to 3.0ft, but the period jumps to 18 seconds. That’s a very long period groundswell, and it’s glassy. For a reef setup like this, those long-period waves will wrap in beautifully, even if they’re smaller. Energy is still 1103, which is moderate, but the quality will be high.
Thursday the 27th is a washout. The swell jumps to 9.8ft, which is too big for most, and the wind is onshore and strong. The morning is already messy with onshore wind, and the afternoon is a full-on choppy mess with 12 mph winds. The energy is enormous at 4596, but it’s unsurfable. This is more of a kite-surfing setup.
Friday the 28th is a ripper. The swell is 11.5ft to 13.1ft from the SSW, with a 16-second period. The wind is cross-shore, which isn’t perfect, but for a reef break, it’s manageable. The energy is off the charts at 6757 to 7253. This is big, powerful, and only for experts. The afternoon session is the best of the day, with a gentler cross-shore, but still, it’s big.
Saturday the 29th is still big, with 9.8ft, but the wind is cross-shore again. It’s messy, but if you’re a charger, you’ll find a wave. The energy is still strong at 4636.
Sunday the 30th sees a drop back to a much more manageable 7.2ft, and it’s glassy. The morning is dead calm, and the afternoon is a light breeze. This is a return to clean, quality surf. The energy is 1910.
Monday the 31st is the last of the good stuff. The morning is glassy with 4.3ft, but the energy is dropping to 497. The afternoon goes onshore, so make the most of the morning.
From Tuesday the 1st of September, it goes quiet. The swell drops to under 3ft, and the wind is onshore or cross. There’s a gap of about four days of very poor surf, until Thursday the 3rd of September, where we see a tiny pulse of 2.6ft to 3.0ft from the SW, with a long period of 14 seconds. The wind is glassy on the afternoon of the 3rd, so it’s surfable
Short Range ForecastMostly dry. Warm (max 23°C on Sun morning, min 21°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu morning, min 21°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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 | SW 14 | SW 14 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SW 12 | SSW 18 | SSW 16 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph | |||||||||||||||||||||
2313 | 1895 | 1367 | 2122 | 1889 | 1264 | 835 | 797 | 657 | 633 | 547 | 1832 | 4530 | 4539 | 6174 | 6757 | 7253 | 6265 | 4636 | 3474 | 2557 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | off | glassy | glassy | cross | cross-off | cross-on | glassy | glassy | glassy | on | cross-on | cross | cross | cross | cross | cross | cross | cross |
High Tide | 12:11PM0.40m | 11:00PM0.42m | 12:17PM0.43m | 11:26PM0.46m | 12:28PM0.46m | 11:51PM0.51m | 12:44PM0.50m | 00:16AM0.55m | 1:02PM0.53m | 00:43AM0.58m | 1:22PM0.56m | 1:11AM0.59m | 1:44PM0.57m | 1:40AM0.59m | |||||||
Low Tide | 5:15PM0.27m | 5:32AM0.12m | 5:36PM0.23m | 5:55AM0.08m | 5:59PM0.20m | 6:19AM0.05m | 6:23PM0.17m | 6:43AM0.04m | 6:48PM0.15m | 7:07AM0.03m | 7:14PM0.13m | 7:31AM0.04m | 7:42PM0.12m | ||||||||
6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | |
— | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 22 | 23 | 22 | 22 | 23 | 22 | 22 | 23 | 23 | 22 | 24 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 21 |
Feels °C | 24 | 24 | 24 | 23 | 24 | 23 | 24 | 22 | 24 | 24 | 24 | 23 | 22 | 21 | 22 | 21 | 21 | 21 | 21 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SW 14 | SW 14 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SW 12 | SW 11 | SSW 16 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
2313 | 1895 | 1367 | 2122 | 1889 | 1264 | 835 | 797 | 657 | 633 | 437 | 1832 | 4530 | 4539 | 6174 | 6757 | 7253 | 6265 | 4636 | 3474 | 2557 | |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 18 | SW 13 | — | S 16 | S 16 | NE 8 | S 12 | S 11 | SSW 18 | SW 11 | S 11 | SE 10 | E 10 | — | — | — | — | — | NE 9 |
— | — | 438 | 246 | — | 137 | 79 | 9 | 138 | 121 | 547 | 292 | 59 | 50 | 17 | — | — | — | — | — | 19 | |
Swell 3 Height (m) Direction Period (s) | — | — | NE 9 | — | — | — | NE 8 | — | NE 7 | SW 19 | S 11 | SSE 11 | — | SE 13 | — | — | — | — | — | — | — |
— | — | 12 | — | — | — | 11 | — | 7 | 184 | 119 | 93 | — | 7 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 5 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |
Best forecast wave conditions in Réunion Island | |||||||||||||||||||||
Best forecast wave conditions in Reunion | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











