
Surf Forecasts:
Black Rocks Jetty surf forecast from 7 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 10PM (local time) - 11ft (3.5m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 1AM (local time) - 13ft (4.0m), 19s period, SSW swell with 12,911 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 10PM (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 10PM. The primary swell is predicted to be 3.5m and 15s period with a secondary swell of 2.3m 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 4.0m 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 0.8m 8s period and expected on Wednesday (Sep 09) at 10AM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 8th Sep) | 11ft (3.5m) 15s |
| Best Surf | 10PM (Tue 8th Sep) | 11ft (3.5m) 15s |
| Most Powerful | 1AM (Wed 9th Sep) | 13ft (4.0m) 19s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get stuck into the outlook for Black Rocks Jetty (reef). This is the only break on the cards for the next couple of weeks, so we’re putting all our eggs in one basket here.
The window opens with some pretty average, choppy conditions on Monday the 7th and Tuesday the 8th. The wind is cross or cross-onshore, and the ocean is a bit of a mess with a lot of energy, but the quality is just not there. It’s a bit of a write-off for a clean paddle-out. The water is sitting at a warm 76°, which is a touch warmer than usual for this time of year.
Now, Wednesday the 9th is the big standout. That morning is where it’s at. We’re looking at a solid 12ft SSW groundswell running with a very long 17-second period, and the wind is a light cross-offshore breeze. The combined energy is huge (8087), which means serious power. This is proper, heavy reef surf. It’s not for beginners – that’s expert territory only. But for the crew who know what they’re doing, it’s going to be firing. The afternoon cleans up even more, turning glassy. If you can only get one session, make it Wednesday.
Thursday the 10th backs off a touch, with 7ft to 6ft of SSW/S swell, but it’s glassy all day. The energy is still moderate-to-strong (3158 down to 2766), so there’s plenty of push. The quality is excellent for experienced surfers, but it’s a step down from the Wednesday peak.
By Friday the 11th, the swell fades fast to 4ft and then 2ft. The periods are still long (12-18 seconds), but the energy drops right off (645-713). It’s glassy and clean, but you’ll be hunting for the smaller, lined-up sets. Not a total loss, but it’s a quieter day.
The weekend of the 12th and 13th brings a little bump back, with 5ft to 6ft of SSW swell. Saturday is glassy all day, with moderate energy (851-985). Sunday morning is a ripper, with a glassy 5ft swell and a very long 18-second period, giving it a nice punch. The afternoon gets a bit of a cross-shore chop, so get out early.
The following week starts to get a bit hit-and-miss. Monday the 14th is onshore and messy, not worth your time. Tuesday the 15th is a return to form – glassy with 4ft to 5ft SSW swell, excellent for experienced surfers, and moderate energy. Wednesday the 16th is a bit of a mixed bag with glassy conditions in the morning turning to onshore in the afternoon.
The swell drops right out on Thursday the 17th, with tiny 2ft to 2ft surf. That’s a real lull.
Looking ahead to the second week, the long-range outlook is promising. Friday the 18th is a rebound, with glassy 3ft to 4ft SW groundswell, but the energy is still low (791-945). The standout in this second week looks to be the weekend of the 19th and 20th. Saturday the 19th is glassy all day with 5ft SW swell (moderate energy of 1160), and by Sunday afternoon the 20th, we get a punchy 8ft SSW swell jumping back up to 1887 energy. Glassy again. That Sunday is a good call.
Monday the 21st and Tuesday the 22nd keep the run going with 7ft to 8ft SSW swell, all glassy. That’s a solid run of excellent conditions for experienced surfers. The energy is strong (over 2200 on Monday). Forecast can change, but this is a good bet.
Remember, this is a reef break, so the long-period groundswells (15-18 seconds) will be drawing in nicely. It’s not a spot for beginners when it’s over 5ft, and definitely not over 8ft. Crowds are possible here, especially on the clean days, so keep that in mind.
Signing off, Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue afternoon. Warm (max 23°C on Mon 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 Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 15 | SSW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 14 | SSE 13 | S 12 | S 12 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SW 20 | SSW 18 | SSW 16 | SW 15 |
Wave Graph | |||||||||||||||||||||
1693 | 2234 | 2151 | 2368 | 3867 | 12911 | 8087 | 6375 | 3606 | 2082 | 1274 | 501 | 330 | 333 | 976 | 911 | 742 | 468 | 1431 | 1575 | 1434 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | cross-off | glassy | glassy | glassy | glassy | glassy | cross | glassy |
High Tide | 11:37AM0.48m | 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 | — | — | 6:22 | — | — | 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 | — | — | — | — | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 22 | 23 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 22 | 21 | 22 | 22 | 21 |
Feels °C | 23 | 22 | 20 | 23 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 22 | 23 | 23 | 24 | 22 | 23 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | 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 15 | SSW 14 | SSW 13 | SSW 18 | SSW 16 | SW 15 |
1693 | 2234 | 2151 | 2368 | 3867 | 12911 | 8087 | 6375 | 3606 | 2082 | 902 | 501 | 330 | 244 | 976 | 911 | 742 | 468 | 1431 | 1575 | 1434 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | S 18 | SW 26 | S 7 | SW 21 | — | — | — | — | SSE 14 | S 13 | SW 14 | SW 13 | SSW 18 | S 11 | NE 6 | NE 6 | SW 20 | SSW 12 | S 12 | SSE 4 |
45 | 160 | 329 | 131 | 3053 | — | — | — | — | 1076 | 590 | 447 | 208 | 333 | 191 | 19 | 20 | 455 | 240 | 172 | 16 | |
Swell 3 Height (m) Direction Period (s) | E 10 | W 28 | E 10 | SW 23 | S 9 | — | — | — | — | — | NE 6 | NE 6 | SSW 18 | SW 13 | SW 13 | ENE 10 | SW 22 | NE 10 | SW 13 | S 4 | S 11 |
18 | 16 | 8 | 1203 | 381 | — | — | — | — | — | 32 | 11 | 107 | 136 | 28 | 10 | 73 | 35 | 61 | 7 | 57 | |
Wind waves Height (m) Direction Period (s) | — | SSW 4 | SSE 4 | S 7 | — | — | ESE 8 | — | — | — | SSE 13 | — | — | NE 6 | NE 6 | SE 6 | SE 6 | — | — | SSE 4 | SSE 5 |
— | 14 | 21 | 247 | — | — | 86 | — | — | — | 1274 | — | — | 34 | 53 | 74 | 36 | — | — | 16 | 33 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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.










