
Surf Forecasts:
Black Rocks Jetty surf forecast from 13 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 1AM (local time) - 10ft (3.0m), 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 3,882 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 1PM (local time) - 5.5ft (1.7m), 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 Sunday (Sep 13) at 1PM. The primary swell is predicted to be 1.7m and 16s period with a secondary swell of 0.9m and 12s. 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 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 0.8m 7s period and expected on Wednesday (Sep 16) at 10PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sun 13th Sep) | 5.5ft (1.7m) 16s |
| Best Surf | 1AM (Wed 16th Sep) | 10ft (3.0m) 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
Alright folks, Rusty here with the full lowdown for Black Rocks Jetty.
We've got a solid stretch of surf on the cards, but it’s a mixed bag with a couple of absolute standout sessions if you time it right. The water’s sitting at a warm 75° which is about average for this time of year, so no need to dig out the thickest wetsuit just yet.
The overall pattern starts with a bit of a rough patch. Sunday morning kicks things off with a 5ft SSW groundswell, but that cross-on wind has the surface a bit messy. It's surfable, but not the best of the run. The real action starts to build through the week.
Tuesday the 15th is where we see the first real gem. After a pretty average Monday, Tuesday afternoon turns it on. The wind drops to glassy, dead calm, and we’ve got a solid 6ft of SSW groundswell with a very long 17-second period pushing in. The wave energy is pumping (2002) and that combo of size, period, and perfect conditions will have Black Rocks looking exceptionally clean and powerful. This is a serious standout for experienced surfers.
Then we get another big hitter on Wednesday the 16th. The morning sees a bigger 8ft SSW swell (2999 energy) with an onshore wind, making it a bit raw and only for the brave. But hold out for Wednesday afternoon – the swell drops slightly to 8ft, and the wind goes glassy again. That’s a huge, clean swell with a 14-second period. Again, this is expert-level territory with that size, but the quality will be world-class if you can handle it.
After those two peak days, the surf settles down. We get some clean, smaller days through the end of the week and into the weekend. Thursday the 17th morning offers a fun 5ft S swell with glassy conditions, a good session for a wider range of surfers. Friday and Saturday see the swell drop off to under 3ft, though the winds stay favorable with some glassy windows.
Looking further ahead into the final week of September, the swell starts to build again. The standout from this longer-range period looks like Monday the 28th of September. It’s still a week and a half away, so take it with a pinch of salt, but the forecast shows a glassy afternoon with a 3ft SSW swell carrying a very long 18-second period. That kind of period on a reef like Black Rocks will produce some gorgeous, lined-up waves, even if the height is modest. The energy reading (936) backs that up – it’s quality over quantity.
Best on offer: Tuesday the 15th afternoon and Wednesday the 16th afternoon are the clear standouts for the experienced crew. For the rest of us, don’t sleep on that Monday the 28th afternoon session.
Keep an eye on the tides, because with a reef setup like this, they’ll make or break the session.
Stay wet,
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Sun morning, min 20°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Fri morning, min 20°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
AM | 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 | SSW 13 | SW 19 | SW 18 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 13 | S 12 | S 12 | S 11 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 |
Wave Graph | |||||||||||||||||||||
1491 | 1857 | 1261 | 907 | 796 | 384 | 1263 | 1515 | 3882 | 2999 | 2350 | 1462 | 878 | 416 | 403 | 253 | 249 | 306 | 326 | 301 | 289 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross-off | cross | glassy | cross-off | on | glassy | glassy | glassy | cross-on | glassy | glassy | cross-on | glassy | on | cross-off | cross-off |
High Tide | 2:03PM0.56m | 2:16AM0.52m | 2:18PM0.53m | 2:40AM0.47m | 2:31PM0.50m | 3:01AM0.42m | 2:43PM0.47m | 3:20AM0.36m | 2:53PM0.44m | 3:39AM0.31m | 2:54PM0.40m | 3:58AM0.26m | 1:28PM0.37m | ||||||||
Low Tide | 8:14PM0.10m | 8:17AM0.14m | 8:40PM0.12m | 8:34AM0.18m | 9:05PM0.14m | 8:41AM0.22m | 9:29PM0.18m | 8:31AM0.25m | 9:55PM0.21m | 7:43AM0.27m | 11:20PM0.25m | 5:36AM0.26m | |||||||||
6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | |
— | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 22 | 23 | 23 | 21 | 21 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 22 | 22 | 23 | 23 | 23 |
Feels °C | 23 | 23 | 23 | 23 | 22 | 22 | 21 | 23 | 21 | 20 | 21 | 22 | 22 | 21 | 23 | 24 | 23 | 23 | 24 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 14 | SW 14 | SSW 13 | S 8 | SW 18 | S 10 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 13 | S 12 | S 12 | S 11 | S 11 | SW 16 | SW 15 | SW 15 | SW 14 |
1491 | 1857 | 1261 | 907 | 796 | 228 | 1263 | 464 | 3882 | 2999 | 2350 | 1462 | 878 | 416 | 403 | 253 | 149 | 306 | 326 | 301 | 289 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | — | — | S 23 | SSW 22 | SW 12 | S 8 | SSW 17 | SSW 16 | NE 7 | ENE 7 | NE 7 | NE 7 | SW 13 | NE 7 | NE 11 | SW 18 | S 10 | S 10 | NE 5 | NE 11 |
329 | — | — | 11 | 45 | 347 | 239 | 1515 | 2583 | 12 | 30 | 21 | 25 | 140 | 19 | 72 | 249 | 75 | 49 | 14 | 58 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 19 | SW 12 | SW 12 | — | — | — | — | ENE 10 | NE 7 | NE 10 | SW 16 | NE 11 | NE 11 | NE 10 | SSE 9 | SSE 9 |
— | — | — | — | — | 384 | 209 | 23 | — | — | — | — | 9 | 33 | 25 | 42 | 72 | 57 | 39 | 28 | 26 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 3 | — | SSE 8 | NE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | 9 | — | 515 | 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 3 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 5 | 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.










