Surf Forecasts:
Black Rocks Jetty surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 23 Aug, 4AM (local time) - 8ft (2.5m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 7AM (local time) - 10ft (3.0m), 16s period, SSW swell with 3,887 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 4AM (local time) - 4.5ft (1.4m), 16s 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 Monday (Aug 17) at 4AM. The primary swell is predicted to be 1.4m and 16s period with a secondary swell of 1.4m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Black Rocks Jetty in the next 16 days are 3.0m 16s and forecast to arrive on Sunday (Aug 23) at 7AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Saturday (Aug 22) at 7PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 17th Aug) | 4.5ft (1.4m) 16s |
| Best Surf | 4AM (Sun 23rd Aug) | 8ft (2.5m) 16s |
| Most Powerful | 7AM (Sun 23rd Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s have a look at the next couple of weeks at Black Rocks Jetty.
The start of the period is pretty quiet, with a few small days on offer, but it’s not really worth paddling out for much until we get toward the end of the first week. The real juice shows up next Sunday onwards, and there’s a proper standout that you won’t want to miss, though it’s for the experienced crew only.
Monday the 17th kicks things off with some small, short-period swell around 4ft, but the morning has a light cross-shore breeze messing with the surface, and the afternoon turns cross-onshore with showers. It’s marginal at best, and the energy is weak (1395). Not worth the effort.
Tuesday the 18th sees a small drop in size, but the morning cleans up nicely with a light cross-offshore breeze and 3ft of south swell. It’s clean, but gutless. The afternoon gets a bit lumpy and smaller. A morning splash might be okay, but don’t expect much.
Wednesday the 19th is even smaller, down to 2.5ft. The morning has a cross breeze, but the afternoon goes glassy. It's pretty tiny though, so bring a longboard if anything. The energy is weak (270).
Thursday the 20th is much the same story: small, weak, and a bit onshore in the morning. The afternoon cleans up to glassy but the swell is only 2ft. Not doing it for me.
Friday the 21st is where things start to perk up a little. Swell bumps back up to 4ft from the southwest with a 14-second period, and the afternoon is dead calm and glassy. That’s worth a paddle. The energy is moderate (605).
Saturday the 22nd is the pick of the first week. The swell holds around 5ft, and the wind is glassy or very light all day. The energy is building (816 to 846). It’s going to be clean and fun, though still not big. A solid day for a lot of folks.
Now, here’s where it gets interesting. Sunday the 23rd sees a serious jump in size: 8ft of longer-period SSW groundswell, with glassy conditions in the morning and clean cross-offshore wind in the afternoon. This is excellent surf for experienced surfers, and the energy jumps right up to strong (3243). If you’re comfortable out there, this is your first standout. It’s going to be pumping, but it’s not for beginners.
Monday the 24th drops back a bit to 5ft to 6ft, but it’s still clean and glassy in the afternoon with very good conditions. A nice, fun size for most.
And then… Tuesday the 25th. The morning is already good, with 5.5ft and glassy conditions. But the afternoon is the big one: 15ft of SSW groundswell with a 16-second period, and the energy is a massive 10419. That’s exceptional, expert-level surf. This is the true standout of the whole window. If you’re an expert, be there. If you’re not, watch from the shore. It’s going to be big, powerful, and the period is long, which at a reef break like Black Rocks Jetty should make for some proper walled-up waves. The crowds might be an issue, but for a wave like this, it might be worth the company.
Wednesday the 26th is still big, with 11ft in the morning dropping to 10ft in the afternoon, but the wind turns light cross-onshore and then cross-shore. The quality drops, and it gets more marginal. The energy is strong (6636), but the wind will likely chop it up. Only for the keen and the skilled.
Thursday the 27th settles down to a more manageable 6.5ft in the morning with clean, cross-offshore wind. That’s a good day for experienced surfers looking for a bit less of a beating. The afternoon gets a bit more cross-shore and messy.
Friday the 28th is another standout day. The swell is a solid 8ft from the SSW with a very long 19-second period in the morning and 18 seconds in the afternoon. It’s glassy all day, and the energy is strong (4865). The long period means those waves are going to have serious push and shape, but they might also be prone to closing out if the sand isn't right—though at a reef, you should get some nice lines. Expert territory again, but it’s going to be memorable.
The weekend winds down a bit. Saturday the 29th has a morning onshore wind (not great), but the afternoon goes glassy with 5ft of swell. A decent, smaller option.
Sunday the 30th drops to 4.5ft, and the morning is clean with a cross-offshore breeze, but the afternoon gets cross-onshore
Short Range ForecastLight rain (total 2mm), mostly falling on Mon afternoon. Warm (max 24°C on Mon morning, min 22°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Thu morning, min 22°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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 16 | SW 16 | SW 16 | S 12 | SW 15 | S 12 | S 11 | S 11 | S 11 | SW 13 | SW 16 | SW 15 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 17 |
Wave Graph | |||||||||||||||||||
1082 | 701 | 611 | 374 | 278 | 214 | 152 | 149 | 152 | 113 | 302 | 171 | 348 | 598 | 598 | 696 | 816 | 846 | 2164 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | glassy | cross-off | cross-on | cross-on | cross | glassy | glassy | cross-on | glassy | glassy | cross-on | glassy | cross-on | glassy | glassy | glassy |
High Tide | 3:12AM0.48m | 3:29PM0.49m | 3:36AM0.42m | 3:41PM0.46m | 3:58AM0.36m | 3:52PM0.42m | 4:22AM0.31m | 4:00PM0.39m | 1:32PM0.35m | 12:15PM0.37m | 10:29PM0.37m | ||||||||
Low Tide | 9:22AM0.17m | 9:49PM0.20m | 9:35AM0.22m | 10:22PM0.22m | 9:28AM0.26m | 11:13PM0.25m | 8:12AM0.28m | 3:25AM0.25m | 4:43AM0.20m | 5:01PM0.31m | |||||||||
— | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | |
— | — | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | |
mm | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 24 | 24 | 23 | 24 | 23 | 23 | 24 | 23 | 22 | 23 | 22 | 22 | 23 | 23 | 22 | 23 | 22 | 22 |
Feels °C | 23 | 25 | 25 | 24 | 25 | 24 | 25 | 26 | 26 | 24 | 25 | 25 | 24 | 24 | 26 | 25 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | S 13 | S 13 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | SW 16 | SW 15 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 17 |
1082 | 694 | 488 | 374 | 278 | 214 | 152 | 149 | 152 | 112 | 302 | 171 | 348 | 598 | 598 | 696 | 816 | 846 | 2164 | |
Swell 2 Height (m) Direction Period (s) | S 14 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | S 10 | S 10 | SW 11 | NE 8 | NE 10 | NE 10 | NE 10 | NE 5 | SW 13 |
780 | 701 | 611 | 301 | 255 | 169 | 127 | 114 | 118 | 113 | 69 | 46 | 82 | 9 | 35 | 35 | 33 | 11 | 680 | |
Swell 3 Height (m) Direction Period (s) | E 9 | — | NE 7 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 10 | NE 10 | NE 10 | SW 12 | S 9 | S 9 | S 20 | S 18 | — | NE 9 | — |
7 | — | 17 | 24 | 14 | 15 | 16 | 17 | 33 | 34 | 35 | 72 | 26 | 14 | 7 | 6 | — | 14 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SE 4 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | 16 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 9 | 1 | 0 | 0 | 2 | 1 | 2 | 0 | 0 | 9 | 0 | 0 | 5 | 0 | 1 | 0 | 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.











