
Surf Forecasts:
Black Rocks Jetty surf forecast from 10 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 7PM (local time) - 6ft (1.9m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 1AM (local time) - 10ft (3.0m), 16s period, SSW swell with 3,798 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 7AM (local time) - 6ft (1.9m), 15s 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 Thursday (Sep 10) at 7AM. The primary swell is predicted to be 1.9m and 15s period with a secondary swell of 1.3m and 13s. 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 Wednesday (Sep 16) at 1AM. 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 6s period and expected on Friday (Sep 11) at 10PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 10th Sep) | 6ft (1.9m) 15s |
| Best Surf | 7PM (Tue 15th Sep) | 6ft (1.9m) 16s |
| Most Powerful | 1AM (Wed 16th Sep) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Yo, what’s happening surf crew? Rusty here, checking in on the only game in town for the next couple weeks – Black Rocks Jetty. This is a reef setup, so it’s got that hard bottom, and it’s exposed to the swell, meaning it catches a lot of what’s out there. The water temp is sitting about average for this time of year, so nothing out of the ordinary there.
Right off the bat, we’ve got a proper big groundswell hitting Thursday the 10th and Friday the 11th. Thursday morning is pumping with clean 7ft SSW swell, a 14-second period, and glassy north wind. The energy is absolutely pumping at 2082, so you’re gonna feel that power. This is for experienced surfers only – it’s got some push. Thursday afternoon stays glassy, still a solid 6ft, and the energy jumps to 2830. That’s a lot of water moving. This is the standout of the whole outlook. The swell direction (SSW) is a bit off the optimum SW, but the quality of the waves and the total lack of wind make up for it. The crowds are a thing here – they’re sometimes an issue, so get out early.
Friday the 11th is still clean but the swell drops a bit. Morning sees 4ft S swell with glassy conditions, then the afternoon turns on with a tiny 2ft but a crazy long 18-second period from the SSW. That’s a proper groundswell, and for a reef, that’s a treat. Energy is 720. It’s much more manageable.
Saturday the 12th has a nice clean morning with 5ft SSW swell, but the afternoon gets a bit of a side breeze and the tide might mess with it. Sunday the 13th is a mixed bag – the morning has a 5ft, 17-second groundswell but a cross-onshore wind, so it’s a bit lumpy. The afternoon, however, cleans right up. Glassy conditions, 6ft SSW swell with a 16-second period, and the energy is 1857. That’s a serious afternoon session.
Monday the 14th and Tuesday the 15th are a bit of a write-off. The wind swings onshore and gets choppy. The swell is still there, but it’s messy. You’d be fighting it.
Then we get to the next real standout: Wednesday the 16th. The morning is glassy with a big 8ft SSW swell, 15-second period, and energy at 2822. That is a powerful, clean wave, but again – it’s 8ft, so expert territory. The afternoon gets a bit of a cross-shore chop, but the morning is magic.
Thursday the 17th has a solid, clean 6ft S swell in the morning. Good for a session. Friday the 18th is a sleeper – the morning is tiny at 4ft, but it’s a 20-second period SW groundswell, glassy, and energy is 1434. That’s a long, clean wall for a reef, and it’ll be a lot of fun on a bigger board.
The second week gets a bit more mixed. The 19th and 20th have some clean, small swells – 4ft SW, nice glassy or clean offshores. The 21st brings a 5ft SW swell, glassy, and energy at 1046. That’s a fun, clean wave.
The real heavyweight of the second week is Tuesday the 22nd. Morning and afternoon both show 7ft SW swell, 16-17 second periods, glassy wind, and energy over 2400. That’s a serious, clean, powerful swell. This is the other true standout.
Wednesday the 23rd sees the swell peak at 10ft, but it gets a cross-onshore wind, so it’s not as clean. Still, 10ft on a reef with that energy (3819) is raw power – only for the brave. Thursday the 24th is a write-off with strong onshore winds. Friday the 25th has a 7ft SSE swell, but it’s short period (8 seconds) and onshore, so it’s a messy close-out.
So, to sum it up: the absolute best on offer is Thursday the 10th and Tuesday the 22nd – both have big, clean groundswells with glassy conditions. Get on it. The rest of the time has plenty of fun, clean windows, but those two days are the standouts.
Rusty, out.
Short Range ForecastMostly dry. Warm (max 22°C on Thu morning, min 20°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Mon morning, min 20°C on Tue morning). Wind will be generally light. | ||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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 14 | SSE 13 | S 12 | S 12 | SSW 18 | SSW 16 | SSW 14 | SSW 14 | SSW 19 | SSW 17 | SSW 16 | SSW 14 | SW 14 | SW 13 | SSE 8 | SSW 18 | SSW 17 | SSW 16 |
Wave Graph | |||||||||||||||||||
3606 | 2082 | 1255 | 488 | 330 | 318 | 688 | 763 | 624 | 657 | 1320 | 1857 | 1261 | 907 | 711 | 570 | 1033 | 1607 | 3798 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross | glassy | glassy | glassy | glassy | on | glassy | on | glassy | glassy | cross-on | cross-on | cross | cross-on | cross | cross-off |
High Tide | 00:17AM0.59m | 1:01PM0.58m | 00:50AM0.60m | 1:24PM0.59m | 1:21AM0.59m | 1:45PM0.58m | 1:50AM0.57m | 2:03PM0.56m | 2:16AM0.52m | 2:18PM0.53m | 2:40AM0.47m | 2:31PM0.50m | 3:01AM0.42m | ||||||
Low Tide | 6:35AM0.01m | 6:48PM0.12m | 7:05AM0.02m | 7:18PM0.10m | 7:32AM0.05m | 7:46PM0.10m | 7:56AM0.09m | 8:14PM0.10m | 8:17AM0.14m | 8:40PM0.12m | 8:34AM0.18m | 9:05PM0.14m | |||||||
— | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | — | 6:12 | — | — | 6:12 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 22 | 21 | 22 | 21 | 21 | 22 | 22 | 21 | 22 | 22 | 22 | 23 | 23 | 21 | 21 | 21 | 21 |
Feels °C | 20 | 22 | 23 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 21 | 21 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 14 | SW 14 | S 12 | S 12 | S 12 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 17 | SSW 16 | SSW 14 | SW 14 | SW 13 | S 8 | S 8 | SSW 17 | SSW 16 |
3606 | 2082 | 902 | 488 | 330 | 264 | 688 | 763 | 624 | 538 | 1320 | 1857 | 1261 | 907 | 711 | 326 | 320 | 1607 | 3798 | |
Swell 2 Height (m) Direction Period (s) | — | NE 8 | S 13 | SW 14 | SW 13 | SSW 18 | S 11 | NE 11 | NE 11 | SSW 19 | SSW 12 | — | — | — | SW 22 | SW 12 | SSW 18 | S 10 | — |
— | 20 | 673 | 440 | 208 | 318 | 196 | 41 | 40 | 657 | 323 | — | — | — | 18 | 353 | 1033 | 562 | — | |
Swell 3 Height (m) Direction Period (s) | — | ENE 11 | NE 7 | NE 11 | NE 7 | SW 13 | SW 13 | SW 23 | SW 22 | — | — | — | — | — | — | SW 19 | SW 12 | SW 12 | — |
— | 11 | 37 | 57 | 26 | 138 | 28 | 21 | 73 | — | — | — | — | — | — | 384 | 287 | 23 | — | |
Wind waves Height (m) Direction Period (s) | — | — | SSE 13 | — | — | NE 5 | NE 6 | — | — | — | — | — | — | — | S 4 | SSE 8 | — | — | — |
— | — | 1255 | — | — | 18 | 31 | — | — | — | — | — | — | — | 9 | 570 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 5 | 0 | 0 | 1 | 3 | 1 | 1 | 1 | 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.










