
Surf Forecasts:
Black Rocks Jetty surf forecast from 3 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 7AM (local time) - 11ft (3.5m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 7AM (local time) - 11ft (3.5m), 18s period, SSW swell with 7,592 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 1AM (local time) - 2ft (0.6m), 12s 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 Friday (Sep 04) at 1AM. The primary swell is predicted to be 0.6m and 12s 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 3.5m 18s and forecast to arrive on Wednesday (Sep 09) 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 9s period and expected on Friday (Sep 04) at 4PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 4th Sep) | 2ft (0.6m) 12s |
| Best Surf | 7AM (Wed 9th Sep) | 11ft (3.5m) 18s |
| Most Powerful | 7AM (Wed 9th Sep) | 11ft (3.5m) 18s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming up for Black Rocks Jetty.
Right off the bat, we’ve got a bit of a slow start but nothing to get upset about. The water’s sitting at a touch warmer than normal for this time of year, 76°, which is a nice little bonus for the first few sessions.
The first real chance to get wet is Thursday afternoon, September 3rd. It’s small, around 2ft of SW groundswell, but the wind is glassy. That’s a glassy, clean surface with a long 13-second period. The combined energy is weak (147). It’s surfable, but you’ll be hunting for the little ones.
Friday morning, September 4th, sees a jump in size to 2ft, with the swell period stretching way out to 19 seconds – that’s a very long period groundswell coming from the SW. The wind is offshore, clean. The combined energy jumps to moderate (463). This is a reef break, so that long-period energy will wrap in nicely, but be aware that long period swells like this can make the waves a bit straight at a beach break, but here on a reef, it’s a good thing. Expect clean lines but long waits between sets.
Things start to get interesting by Friday afternoon. The swell pushes to 5ft from the SW, period 17 seconds, and the combined energy is strong (1221). It’s a cross-shore wind, so there will be a bit of texture on the face, but it’s still very surfable.
Saturday, September 5th, is a standout. The morning has 5ft SW swell, offshore wind, and a solid 14-second period. The energy is strong (1094). Then the afternoon goes glassy again, with 5ft waves. That’s a beautiful, clean afternoon session. The waves are a bit too big for beginners, but for anyone with some experience, this is the pick of the first week.
Sunday, September 6th, drops back a touch, but still has 4ft SW swell. The wind is cross-shore, so the surface isn’t as clean, but there’s plenty of energy (892). It’s okay, but not the highlight.
Now, looking ahead to the following week, the real standouts are on Tuesday, September 8th, and Wednesday, September 9th. Tuesday morning delivers 8ft of SSW groundswell with a 16-second period, clean cross-offshore wind, and combined energy cracking a massive 4068. That’s expert territory. The afternoon is a bit bigger at 10ft, but with a cross-shore wind, it’s a bit lumpy.
But Wednesday, September 9th, is the absolute standout. Wednesday morning: 12ft of SSW groundswell, 18-second period, glassy, and a combined energy of 6587. That’s exceptional, expert-only, heavy, powerful waves. The afternoon is still a massive 10ft and glassy. If you’re an expert, that’s the day.
After that, it settles down. Thursday, September 10th, is a nice, clean 5ft in the morning, glassy. A good one for the experienced crew.
The following weekend and into the next week, the swell drops and the wind turns onshore, making it a bit of a write-off until the middle of the following week. Tuesday, September 15th, has a messy 6ft, and it’s chop city.
Then, on Wednesday, September 16th, we get a clean-up. The morning has 4ft SSW groundswell with a very long 19-second period, and cross-offshore wind. The afternoon goes glassy with 6ft waves. That’s a solid, clean day.
The final call for the period is Thursday, September 17th, which is another big day but with cross-onshore wind, making it messy. The morning of Friday, September 18th, is a glassy 8ft, and the afternoon is a glassy 7ft. Those are both excellent, clean, expert-level waves to finish the run.
This spot is very consistent, so there’s always something to look at. The best of the lot is Wednesday, September 9th, and then the two days around the 16th and 18th are also worth a serious look.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 24°C on Fri morning, min 21°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Mon morning, min 21°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 12 | SW 19 | SW 17 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 16 | SSW 15 | SW 19 | SSW 18 | SSW 17 | SSW 16 |
Wave Graph | |||||||||||||||||||
122 | 368 | 1221 | 1222 | 1094 | 733 | 577 | 495 | 437 | 1257 | 1622 | 2035 | 1987 | 3054 | 3243 | 4022 | 7140 | 5406 | 3074 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross-on | cross-on | glassy | glassy | cross | glassy | glassy | cross-on | cross-on | cross | cross | cross | cross | cross-on | glassy | off |
High Tide | 5:46AM0.34m | 5:11PM0.40m | 10:26AM0.36m | 8:28PM0.39m | 11:05AM0.43m | 10:08PM0.44m | 11:37AM0.48m | 11:00PM0.50m | 12:06PM0.53m | 11:41PM0.55m | 12:34PM0.56m | 00:17AM0.59m | |||||||
Low Tide | 11:16PM0.19m | 10:26AM0.30m | 1:58AM0.20m | 2:58PM0.33m | 3:53AM0.15m | 4:28PM0.28m | 4:48AM0.08m | 5:11PM0.23m | 5:28AM0.04m | 5:45PM0.18m | 6:03AM0.01m | 6:17PM0.15m | |||||||
— | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | |
— | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 24 | 23 | 22 | 23 | 22 | 22 | 23 | 23 | 22 | 24 | 24 | 22 | 22 | 22 | 21 | 22 | 22 | 21 |
Feels °C | 24 | 25 | 25 | 23 | 24 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 22 | 22 | 23 | 21 | 23 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 19 | SW 17 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | SSW 18 | SSW 17 | SSW 16 |
122 | 368 | 1221 | 1222 | 1094 | 733 | 577 | 495 | 363 | 1257 | 1622 | 2035 | 1987 | 3054 | 3243 | 3324 | 7140 | 5406 | 3074 | |
Swell 2 Height (m) Direction Period (s) | NE 8 | SW 12 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | SSW 17 | SSW 17 | NE 11 | SW 13 | S 4 | SW 26 | SW 24 | SW 21 | SW 19 | — | — | — |
22 | 95 | 64 | 38 | 24 | 25 | 25 | 164 | 437 | 19 | 45 | 7 | 171 | 780 | 2380 | 4022 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SSW 13 | NE 8 | — | NE 11 | NE 10 | — | — | NE 7 | NE 8 | S 15 | E 10 | E 10 | E 10 | — | S 7 | — | — | — | — |
32 | 34 | — | 5 | 4 | — | — | 8 | 9 | 4 | 18 | 17 | 8 | — | 121 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SSE 4 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | 16 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 1 | 5 | 0 | 0 | 9 | 0 | 0 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
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.










