Surf Forecasts:
Black Rocks Jetty surf forecast from 18 Aug 2026:
- Best quality surf: Saturday 22 Aug, 10PM (local time) - 5ft (1.6m), 13s period, SW swell with glassy winds.
- Most powerful swell: Monday 24 Aug, 7AM (local time) - 8ft (2.4m), 15s period, SSW swell with 2,349 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 7AM (local time) - 2.5ft (0.8m), 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 Wednesday (Aug 19) at 7AM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.6m and 14s. 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 2.4m 15s and forecast to arrive on Monday (Aug 24) 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 0.4m 8s period and expected on Friday (Aug 21) at 10AM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 19th Aug) | 2.5ft (0.8m) 11s |
| Best Surf | 10PM (Sat 22nd Aug) | 5ft (1.6m) 13s |
| Most Powerful | 7AM (Mon 24th Aug) | 8ft (2.4m) 15s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down what’s cooking for Black Rocks Jetty. This is a reef break that’s very consistent, but it’s strictly for advanced surfers – not a spot for the beginners. Water temp is pretty much where you’d expect it for this time of year, nothing out of the ordinary.
The next couple of weeks are shaping up nicely. We start off with a slow build – Wednesday and Thursday have just ankle-to-knee-high glassy little waves, with weak energy (263). Not worth paddling out for. But it doesn’t stay quiet for long.
Friday the 21st, we get a 1ft south-west groundswell with a 14-second period and glassy morning conditions. Combined energy is kicking into a moderate 611. That’s a solid morning session, clean and building.
The real standout for the first part is Saturday the 23rd of August. The swell pushes to 3ft from the SSW, 14-second period, and it’s glassy in the morning. Combined energy is a strong 2313 – plenty of grunt. This is for the experienced crew only, as it’s getting into overhead territory. Sunday the 24th and Monday the 25th have similar energy, but Saturday is the cleanest of the bunch.
There’s a messy day on Wednesday the 26th – 3ft of swell but with a strong cross-onshore wind that chops it up. Then Thursday the 27th offers a clean 3ft, 17-second groundswell with cross-off wind – combined energy is a huge 4304, but that long period might make it a bit straight for the reef. Still, a good option for the experts.
The second big standout is Friday the 28th of August. The afternoon brings a glassy 3ft SSW swell with a 17-second period. That’s exceptional, expert-only territory, with combined energy reading a massive 5591. It gets a bit onshore on the 29th, but Sunday the 30th cleans up with 2ft of glassy SSW swell (1728). The last week sees the size drop back down, but there are still a few good windows like the 1st of September afternoon with a 2ft, 16-second SW swell and glassy conditions.
Best of the bunch are the 23rd and the 28th of August – both deliver clean, powerful, well-overhead waves for those who know what they’re doing. Crowds can show up sometimes, so get there early for the cleanest sets.
Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Wed morning, min 22°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sat morning, min 21°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 11 | S 11 | SW 14 | SW 13 | SW 16 | SW 15 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 14 | SW 14 | SW 13 | SSW 14 | SSW 14 | SSW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 152 | 149 | 118 | 113 | 302 | 171 | 344 | 598 | 590 | 686 | 885 | 933 | 1144 | 2313 | 1799 | 1164 | 2200 | 1862 | 1245 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy |
High Tide | 3:58AM0.36m | 3:52PM0.42m | 4:22AM0.31m | 4:00PM0.39m | 1:32PM0.35m | 12:15PM0.37m | 10:29PM0.37m | 12:11PM0.40m | 11:00PM0.42m | 12:17PM0.43m | 11:26PM0.46m | ||||||||
Low Tide | 10:22PM0.22m | 9:28AM0.26m | 11:13PM0.25m | 8:12AM0.28m | 3:25AM0.25m | 4:43AM0.20m | 5:01PM0.31m | 5:08AM0.16m | 5:15PM0.27m | 5:32AM0.12m | 5:36PM0.23m | ||||||||
 |  | |  | | | | | | | | | |  | | | | | | |
 | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — |
 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 24 | 23 | 23 | 23 | 22 | 22 | 24 | 22 | 22 | 23 | 22 | 22 | 23 | 22 | 22 | 23 | 22 | 22 |
Feels °C | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 24 | 25 | 26 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | SW 16 | SW 15 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 14 | SW 14 | SW 13 | SSW 14 | SSW 14 | SSW 13 |
| kJ | 152 | 149 | 116 | 112 | 302 | 171 | 344 | 598 | 590 | 686 | 885 | 933 | 1144 | 2313 | 1799 | 1164 | 2200 | 1862 | 1245 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 13 | S 10 | S 10 | SW 11 | NE 8 | NE 10 | NE 10 | NE 10 | NE 9 | SSW 16 | — | — | SSW 16 | SW 13 | — | — |
| kJ | 127 | 114 | 118 | 113 | 48 | 46 | 82 | 20 | 35 | 35 | 33 | 31 | 808 | — | — | 938 | 173 | — | — |
Swell 3 Height (m) Direction Period (s) | NE 6 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | S 9 | S 9 | S 18 | S 16 | S 14 | — | — | — | — | — | — | — | — |
| kJ | 19 | 33 | 46 | 34 | 35 | 35 | 27 | 13 | 6 | 5 | 16 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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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