Surf Forecasts:
Black Rocks Jetty surf forecast from 31 Aug 2026:
- Best quality surf: Friday 4 Sep, 10PM (local time) - 5.5ft (1.7m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Friday 4 Sep, 10PM (local time) - 5.5ft (1.7m), 16s period, SSW swell with 1,373 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 4AM (local time) - 3ft (0.9m), 11s period with S 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 01) at 4AM. The primary swell is predicted to be 0.9m and 11s 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 1.7m 16s and forecast to arrive on Friday (Sep 04) at 10PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Thursday (Sep 03) at 10PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 1st Sep) | 3ft (0.9m) 11s |
| Best Surf | 10PM (Fri 4th Sep) | 5.5ft (1.7m) 16s |
| Most Powerful | 10PM (Fri 4th Sep) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
G'day, Rusty here. Let's talk about what's brewing at Black Rocks Jetty over the next couple of weeks. It's a slow burn, but there's some proper juice coming if you can wait.
We start on Monday the 31st of August. The swell is a modest 4ft from the south with a 12-second period, and it's dead glassy with northerly breezes. The water is a touch warmer than usual at 77°F, running about 3°F above the seasonal norm. The combined wave energy sits at 418, so it's moderate, but for a late afternoon paddle, it's nice and clean. Tuesday the 1st of September drops to 3ft with a cross-off wind, making it messy. Wednesday and Thursday are tiny and ugly—leave the board at home.
The weekend picks up. Saturday the 5th of September afternoon looks good with 5ft of southwest swell, glassy conditions, and energy hitting 733. That's a good, clean session. Sunday the 6th keeps it going with 4ft southwest swell and a clean cross-off breeze in the morning, then 3ft in the afternoon with a long 16-second period—that groundswell will wrap in nicely.
Now, the one you don't want to miss: Tuesday the 8th of September. We've got a massive 13ft southwest swell with a 15-second period. The combined energy is a staggering 7391—that's serious, heavy water. And the wind? Dead calm, glassy as a mirror in the morning. This is exceptional, expert-only stuff. Anything over 8ft is for the experienced crew, and this is well beyond that. The swell direction is straight out of the southwest, which is exactly what Black Rocks Jetty is built for. If you're not an expert, stay high on the sand. Wednesday the 9th of September morning is almost identical, another 13ft glassy morning, again only for the pros.
After the big pulse, things settle. Thursday the 10th of September morning is still excellent for experienced surfers with 8ft southwest swell and glassy conditions. Friday the 11th of September is a nice, clean finish to the week with 4ft south swell and zero wind. Saturday the 12th brings a strong 18 mph offshore breeze from the north-northeast, keeping the 4ft south swell clean but a bit gusty.
From Sunday the 13th of September onward, it goes pear-shaped. The swell drops below 3ft, winds turn onshore or cross-shore, and it's not worth the effort until Monday the 14th, when a 18 mph southeasterly wind ruins a decent 7ft swell. The rest of the second week is lumpy, onshore, and poor. A few marginal windows appear, but nothing to get excited about.
Bottom line: the absolute standout is Tuesday the 8th of September for the massive, glassy southwest swell—expert only. The next best is Saturday the 5th afternoon and Sunday the 6th for the rest of us. From the 13th onwards, it's a long stretch of no-go. That's the read on it.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 24°C on Tue morning, min 21°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Fri afternoon. Warm (max 24°C on Fri morning, min 22°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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) | S 12 | S 12 | S 11 | S 11 | S 10 | SW 14 | SW 14 | SE 10 | SW 13 | SW 13 | SW 12 | SSW 19 | SSW 17 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 16 | SSW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 418 | 266 | 149 | 112 | 73 | 47 | 73 | 113 | 85 | 104 | 122 | 241 | 998 | 1222 | 1002 | 733 | 651 | 488 | 512 | 1241 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-off | on | glassy | cross-on | cross-on | cross-on | on | glassy | glassy | cross-on | cross-on | glassy | on | glassy | glassy | cross-off | cross-off | glassy |
High Tide | 2:44AM0.53m | 3:00PM0.54m | 3:22AM0.47m | 3:30PM0.50m | 4:10AM0.40m | 4:07PM0.46m | 5:46AM0.34m | 5:11PM0.40m | 10:26AM0.36m | 8:28PM0.39m | 11:05AM0.43m | 10:08PM0.44m | ||||||||
Low Tide | 8:43PM0.12m | 8:49AM0.13m | 9:19PM0.13m | 9:17AM0.18m | 10:04PM0.16m | 9:47AM0.24m | 11:16PM0.19m | 10:26AM0.30m | 1:58AM0.20m | 2:58PM0.33m | 3:53AM0.15m | 4:28PM0.28m | ||||||||
 |  |  | | | | | |  | | | | | | | | | | | | |
 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — |
 | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — |
mm | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 24 | 24 | 23 | 23 | 22 | 22 | 23 | 23 | 23 | 24 | 23 | 22 | 23 | 23 | 22 | 23 | 23 | 22 |
Feels °C | 24 | 22 | 25 | 24 | 24 | 24 | 23 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 24 | 24 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 11 | S 10 | NE 8 | NE 6 | NE 8 | SW 13 | SW 13 | NE 6 | SW 12 | SSW 17 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 15 |
| kJ | 418 | 266 | 149 | 112 | 73 | 33 | 23 | 41 | 85 | 104 | 41 | 122 | 998 | 1222 | 1002 | 733 | 651 | 488 | 374 | 1241 |
Swell 2 Height (m) Direction Period (s) | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | SSE 10 | SW 14 | SW 14 | NE 8 | NE 6 | SW 12 | SSW 19 | NE 8 | NE 8 | NE 8 | NE 9 | NE 8 | SSW 17 | SSW 16 | ESE 10 |
| kJ | 51 | 39 | 31 | 53 | 33 | 33 | 73 | 95 | 23 | 23 | 122 | 241 | 55 | 34 | 33 | 49 | 25 | 344 | 512 | 31 |
Swell 3 Height (m) Direction Period (s) | NE 11 | NE 11 | ENE 11 | NE 11 | SW 16 | SW 14 | SSE 10 | SSW 14 | SSW 14 | SSW 13 | S 5 | NE 8 | — | NE 11 | NE 11 | E 10 | SSW 19 | NE 8 | NE 8 | — |
| kJ | 19 | 31 | 12 | 19 | 39 | 47 | 31 | 41 | 61 | 34 | 15 | 24 | — | 5 | 4 | 30 | 72 | 24 | 18 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SE 10 | — | SSE 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 113 | — | 61 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 1 | 0 | 2 | 0 | 9 | 9 | 1 | 5 | 0 | 0 | 9 | 1 | 0 | 5 | 0 | 0 | 0 | 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.
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