
Surf Forecasts:
Black Rocks Jetty surf forecast from 7 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 7PM (local time) - 11ft (3.5m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 1AM (local time) - 15ft (4.5m), 19s period, SSW swell with 13,462 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 7PM (local time) - 11ft (3.5m), 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 Tuesday (Sep 08) at 7PM. The primary swell is predicted to be 3.5m and 15s period with a secondary swell of 2.1m and 20s. 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 4.5m 19s and forecast to arrive on Wednesday (Sep 09) 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 0.6m 7s period and expected on Wednesday (Sep 09) at 4PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Tue 8th Sep) | 11ft (3.5m) 15s |
| Best Surf | 7PM (Tue 8th Sep) | 11ft (3.5m) 15s |
| Most Powerful | 1AM (Wed 9th Sep) | 15ft (4.5m) 19s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for this stretch.
We’ve got a solid run of surf coming up at Black Rocks Jetty, but it’s one for the crew who know what they’re doing. This is a reef setup, and it’s no place for a learner. The water’s sitting at a balmy 76°, which is a touch warmer than normal for this time of year – nice for a long session.
The first real action kicks off Monday morning, September 7th. We’re looking at a 7ft SSW swell pushing in. The period is a solid 15 seconds, so there’s proper groundswell energy behind it. The wind is cross-on from the south at 9 mph, so it’s going to be a bit bumpy and choppy. The combined energy is strong (1738), but the conditions are marginal. Not a day to get too excited about.
Monday afternoon sees the swell bump up to 8ft with the same cross-on wind. Still messy.
Tuesday the 8th is where it starts to get interesting. The morning brings 7ft of SSW swell, period 16 seconds, and the wind switches to a light cross-shore from the SSE at 6 mph. The energy is now very strong (4139), and the ripple is small. It’s building.
Then Tuesday afternoon, things get serious. The swell jumps to 12ft from the SSW with a 15 second period. The wind is still cross-shore from the SE at 9 mph. This is big, powerful surf. The combined energy is massive (8042). This is expert territory only. It’s going to be a heavy, challenging day.
Wednesday morning, September 9th, is the absolute standout of this whole outlook. The swell is still a pumping 12ft from the SSW, but the period stretches to a very long 17 seconds. This is pure, deep-ocean groundswell. The wind drops to a whisper from the SSE at just 3 mph, making it a light cross-shore. The energy is massive (8087). The morning is a beast, but it’s a beast with clean lines.
Wednesday afternoon, September 9th, is the best window. The swell holds at 12ft from the SSW, period 17 seconds, and the wind goes completely glassy – zero from the west. This is as good as it gets for a big swell. The energy is still very strong (6375). For the experts out there, this is a dream session. This is the one to circle on the calendar.
Thursday the 10th sees the swell drop back to 7ft in the morning, then 5ft in the afternoon. The wind is light and glassy from the SW. A much more manageable day, but still clean.
The rest of the first week and into the second week sees the swell slowly wind down, with plenty of glassy mornings and clean afternoons on smaller waves. Friday the 11th has tiny 4ft waves, glassy. Saturday the 12th is similar.
By Sunday the 13th, the wind picks up again, and the quality drops.
There’s a gap of smaller, less consistent surf from the 14th until the 18th, but then we get a little pulse again. Tuesday the 15th shows 5ft and 4ft with glassy wind, clean and fun. Wednesday the 16th has a solid 7ft swell with glassy conditions – another good window for the experienced.
After that, the swell fades into the 22nd, with smaller waves and mostly clean conditions but nothing to write home about.
Overall, the standout is crystal clear: Wednesday the 9th of September. The combination of a long-period 12ft SSW swell and glassy wind is about as good as it gets for a big reef break like Black Rocks Jetty. For the experts, that’s the day.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon afternoon. Warm (max 23°C on Mon afternoon, min 20°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sun morning, min 21°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 | SSW 16 | SSW 15 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 14 | SSE 13 | S 12 | S 12 | SSE 11 | SSW 16 | SSW 14 | SSW 14 | SSW 20 | SSW 17 | SSW 16 | SSW 15 |
Wave Graph | ||||||||||||||||||||
2234 | 1987 | 2368 | 4122 | 13462 | 7893 | 6300 | 3606 | 2082 | 1452 | 485 | 330 | 513 | 679 | 763 | 624 | 790 | 1454 | 2058 | 1337 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross-off | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | glassy | glassy | glassy | on | cross-on | on |
High Tide | 11:00PM0.50m | 12:06PM0.53m | 11:41PM0.55m | 12:34PM0.56m | 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 | |||||||
Low Tide | 5:11PM0.23m | 5:28AM0.04m | 5:45PM0.18m | 6:03AM0.01m | 6:17PM0.15m | 6:35AM0.01m | 6:48PM0.12m | 7:05AM0.02m | 7:18PM0.10m | 7:32AM0.05m | 7:46PM0.10m | 7:56AM0.09m | 8:14PM0.10m | |||||||
— | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | |
6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:12 | — | — | 6:12 | — | |
mm | 1 | — | — | 2 | 2 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 2 | — |
Temp °C | 23 | 22 | 22 | 21 | 21 | 22 | 21 | 21 | 22 | 22 | 21 | 22 | 21 | 21 | 22 | 22 | 22 | 23 | 22 | 21 |
Feels °C | 22 | 21 | 22 | 20 | 21 | 23 | 23 | 23 | 23 | 23 | 22 | 23 | 21 | 23 | 23 | 23 | 23 | 24 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 14 | SW 14 | S 12 | S 12 | S 11 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 17 | SSW 16 | SSW 15 |
2234 | 1987 | 2368 | 4122 | 13462 | 7893 | 6300 | 3606 | 2082 | 902 | 485 | 330 | 250 | 679 | 763 | 624 | 461 | 1454 | 2058 | 1337 | |
Swell 2 Height (m) Direction Period (s) | S 18 | SW 26 | S 7 | SW 21 | — | S 16 | ENE 7 | — | SSE 14 | S 13 | SW 14 | SW 13 | SW 13 | S 11 | NE 10 | NE 7 | SSW 20 | SSW 12 | — | — |
160 | 329 | 155 | 3053 | — | 422 | 32 | — | 1340 | 590 | 440 | 208 | 136 | 192 | 37 | 27 | 790 | 323 | — | — | |
Swell 3 Height (m) Direction Period (s) | W 28 | E 10 | SW 23 | S 9 | — | — | — | — | — | NE 7 | NE 7 | SSW 18 | S 17 | NE 6 | SW 24 | SW 22 | NE 5 | — | — | — |
16 | 8 | 1203 | 386 | — | — | — | — | — | 50 | 16 | 103 | 212 | 20 | 22 | 119 | 10 | — | — | — | |
Wind waves Height (m) Direction Period (s) | SSW 3 | SSE 4 | S 7 | — | — | — | — | — | — | SSE 13 | — | — | SSE 11 | — | — | — | — | — | SE 5 | SE 5 |
9 | 19 | 311 | — | — | — | — | — | — | 1452 | — | — | 513 | — | — | — | — | — | 29 | 20 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3 | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 5 | 1 | 3 |
Best forecast wave conditions in Réunion Island | ||||||||||||||||||||
Best forecast wave conditions in Reunion | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










