
Surf Forecasts:
Black Rocks Jetty surf forecast from 9 Sep 2026:
- Best quality surf: Thursday 10 Sep, 1AM (local time) - 8ft (2.5m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 4AM (local time) - 10ft (3.0m), 16s period, SSW swell with 3,798 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 1AM (local time) - 8ft (2.5m), 16s 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 Thursday (Sep 10) at 1AM. The primary swell is predicted to be 2.5m and 16s 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 3.0m 16s and forecast to arrive on Wednesday (Sep 16) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Friday (Sep 11) at 10PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 10th Sep) | 8ft (2.5m) 16s |
| Best Surf | 1AM (Thu 10th Sep) | 8ft (2.5m) 16s |
| Most Powerful | 4AM (Wed 16th Sep) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Alright, let’s get into it. There’s plenty of swell on the cards, but you gotta pick your moments.
We’ve got a bit of a wait for the real juice, but the opening stanza this Wednesday afternoon at Black Rocks Jetty is already looking serious. We’re talking a solid 12ft of SSW swell, with a long 17-second period. That’s proper groundswell, and with the glassy conditions and the water temp sitting at a touch warmer than normal for this time of year, it’s going to be an exceptional session for the experts. The energy is strong too, so there’s plenty of push behind it. This is one of the standouts of the whole run – expert crew only for this one.
After that initial punch, it pulls back a bit. Thursday morning still has a very decent 7ft of SSW swell with a 14-second period and clean glass, but the scores drop off. It’s still excellent for experienced surfers, just not as wild. Thursday afternoon eases to 5ft, still glassy, and it’s good, but not a standout.
Friday drops further to a smaller 4ft, and while the morning is glassy, the afternoon gets a bit iffy with an onshore breeze. Saturday sees a return to a more fun size, around 5ft with clean conditions, and Sunday morning is looking nice with 5ft and a long 17-second period. That Sunday morning session is a good one, but the afternoon gets a little lumpy with a cross-onshore.
The start of the following week gets messy. Monday sees the wind pick up, and conditions turn choppy. Tuesday has some size but the conditions are questionable, with an onshore wind and the waves not looking clean.
Then we hit the second standout. Wednesday the 16th. We get a jump back up to 8ft of SSW swell, a 15-second period, and it’s glassy. The energy is pumping, and it’s an excellent call for experts. This is the other real highlight on the board. We’re looking at the kind of day you’d rearrange your schedule for.
After that, it drops back down. The end of the week sees smaller surf, with Thursday and Friday offering clean but much smaller waves around the 3ft to 6ft mark. It’s a bit of a lull, with some cross-onshore winds making the weekend look average.
There’s a bit of a flat spell there, a few days where it’s really not worth paddling out unless you’re desperate. The swell looks weak and the winds aren't helping.
But hold on, there’s a late push. Around the 23rd, we’re looking at another significant pulse. The 23rd afternoon shows a solid 8ft of SSW swell, a 17-second period, and glassy conditions. This is a long-range call, so it’s promising but we don't have the same certainty as the earlier days. It’s a similar story for the 24th, with good size and clean conditions in the afternoon.
So, overall, it’s a good run for the experts. The two big standouts are the opening Wednesday the 9th, and that Wednesday the 16th. The long-period swell is going to make the reef break at Black Rocks Jetty (Big Island) work well, as it’s a spot that can handle that sort of energy. With crowds “sometimes” in the water, you might have some company on the good days, but it’s not going to be a circus. Keep an eye on that final pulse around the 23rd and 24th; it could be the best of the lot if it comes together.
Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Wed afternoon, 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 21°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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 17 | SSW 16 | SSW 14 | SW 14 | 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 7 | SW 18 | SSW 17 | SSW 16 |
Wave Graph | ||||||||||||||||||||
6300 | 3606 | 2082 | 902 | 485 | 330 | 318 | 688 | 763 | 615 | 657 | 1336 | 1857 | 1261 | 907 | 711 | 397 | 1263 | 1775 | 3639 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | cross-off | glassy | on | cross-off | glassy | glassy | glassy | glassy | cross-on | glassy | cross-on | cross-on | cross-off | on | on | 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 | 6:17PM0.15m | 6:35AM0.01m | 6:48PM0.12m | 7:05AM0.02m | 7:18PM0.10m | 7:32AM0.05m | 7:46PM0.10m | 7:56AM0.09m | 8:14PM0.10m | 8:17AM0.14m | 8:40PM0.12m | 8:34AM0.18m | 9:05PM0.14m | |||||||
— | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 22 | 22 | 22 | 22 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 22 | 23 | 23 | 21 | 22 | 22 | 21 |
Feels °C | 23 | 20 | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 21 | 21 | 20 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | 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 7 | S 8 | SSW 17 | SSW 16 |
6300 | 3606 | 2082 | 902 | 485 | 330 | 264 | 688 | 763 | 615 | 538 | 1336 | 1857 | 1261 | 907 | 711 | 144 | 260 | 1775 | 3639 | |
Swell 2 Height (m) Direction Period (s) | ENE 7 | — | NE 8 | S 13 | SW 14 | SW 13 | SSW 18 | S 11 | NE 11 | NE 11 | SSW 19 | SSW 12 | — | — | — | SW 22 | SW 12 | SW 18 | S 10 | — |
33 | — | 14 | 581 | 440 | 208 | 318 | 244 | 41 | 29 | 657 | 386 | — | — | — | 18 | 392 | 1263 | 307 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | NE 11 | NE 6 | NE 11 | NE 7 | SW 13 | SW 13 | SW 23 | SW 21 | SSE 12 | — | — | — | — | — | SW 19 | SW 12 | SW 12 | — |
— | — | 5 | 19 | 56 | 19 | 138 | 28 | 21 | 72 | 14 | — | — | — | — | — | 384 | 244 | 37 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NE 6 | — | — | — | — | — | — | — | S 3 | SSE 7 | SSE 8 | SSE 8 | — |
— | — | — | — | — | — | — | 38 | — | — | — | — | — | — | — | 8 | 397 | 520 | 350 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 3 | 0 | 5 | 9 | 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.










