Surf Forecasts:
Black Rocks Jetty surf forecast from 18 Aug 2026:
- Best quality surf: Saturday 22 Aug, 4PM (local time) - 5ft (1.6m), 13s period, SW swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 10AM (local time) - 7.5ft (2.3m), 14s period, SSW swell with 2,151 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 1PM (local time) - 3ft (0.9m), 12s 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 (Aug 18) at 1PM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.7m and 15s. 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 2.3m 14s and forecast to arrive on Sunday (Aug 23) at 10AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 6s period and expected on Tuesday (Aug 18) at 1PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Tue 18th Aug) | 3ft (0.9m) 12s |
| Best Surf | 4PM (Sat 22nd Aug) | 5ft (1.6m) 13s |
| Most Powerful | 10AM (Sun 23rd Aug) | 7.5ft (2.3m) 14s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Alright, Rusty here, and I’ve been staring at the charts for our little patch of coast. The next couple of weeks are shaping up to be a ripper for those who can handle some size, with a solid run of groundswell from the south-west that just keeps on giving. The water's sitting at 24.9° which is a touch warmer than normal for this time of year, so you can leave the thick steamer at home.
First real action kicks off on Tuesday the 18th of August morning. Black Rocks Jetty is the spot, and we’ve got a clean 3.3 ft swell from the south with a decent 12 second period. The wind’s light out of the NNW, so it’s cross-off, making for clean faces. Wave energy is moderate at 533. It’s a nice little warm-up, nothing too hectic.
Wednesday the 19th sees a drop in size, with 2.6 ft in the morning from the south, but the period drops to 11 seconds. The wind goes glassy from the west though, so it’ll be smooth as silk. Afternoon swings around to a 2.0 ft swell from the southwest with a long 14 second period. Glassy again. This is what you call a good, quiet midweek session.
Thursday the 20th is more of the same. Morning glass with a 2.6 ft swell from the southwest, but the period jumps to 16 seconds – that’s groundswell. Wave energy is 350. In the arvo, the wind drops to dead calm, swell sits at 2.0 ft from the southwest with a 15 second period. Clean and long lines.
Friday the 21st is where things start to get interesting. Morning is a bit messy with cross-on wind, but the swell bumps up to 3.9 ft from the southwest with a 14 second period, and the energy is up to 603. The afternoon is the real story though. Wind swings to the NW and goes glassy. Same 3.9 ft swell, same direction, but now it’s perfect. That afternoon session is a standout for the week.
Saturday the 22nd is the day to circle. Morning glass, 5.2 ft from the southwest, 14 second period, and energy at 901. Afternoon gets even better. Same size, but the energy jumps to 1036, and the wind is glassy from the NNE. This is excellent for experienced surfers. The bigger sets will have some punch.
Sunday the 23rd is where it gets serious for the crew who know what they're doing. Morning is dead calm, 7.5 ft from the south-southwest with a 14 second period. The combined energy is a hefty 2167. This is expert territory – over 8.2 ft is for experts only, and we’re right on the edge of that. The afternoon drops a little to 7.2 ft, still glassy, but still solid.
Monday the 24th keeps the energy going. Morning glass, 5.6 ft from the south-southwest, 13 second period, energy at 1138. It’s excellent, but the wind starts to get a little tricky in the arvo with a light southerly breeze.
Now, here’s where the forecast gets a bit of a split personality. Tuesday the 25th morning has a cross-shore wind messing with the 5.6 ft swell, but the afternoon… oh boy. Dead calm, 8.2 ft from the south-southwest with a 15 second period, and a massive energy reading of 2620. That’s a real standout, but only for the experienced.
Wednesday the 26th is a write-off for paddle surfing. The swell is huge at 8.2 ft, but the wind is onshore and then cross-onshore and choppy. This setup looks more interesting for kite surfing than paddle surfing.
Thursday the 27th is still messy in the morning, with strong cross-onshore winds and a 6.6 ft swell. The afternoon turns it around though. The wind goes cross-off from the ESE, and the swell jumps to a massive 9.8 ft from the south-southwest with a 15 second period. Energy is 4004. That’s very strong energy, and while it’s clean, that size is strictly for experts.
Friday the 28th is another top day. Morning glass, 6.9 ft from the south, 15 second period, energy at 2915. The afternoon is the absolute pick of the entire run. Glassy wind from the ENE, 7.9 ft from the south, 16 second period, and the energy hits 3871. That’s about as good as it gets for a solid, clean groundswell. This is the standout.
Saturday the 29th keeps the big swell going. Morning has a bit of onshore wind, but the afternoon goes glassy again with a 7.5 ft swell from the south-s
Short Range ForecastMostly dry. Warm (max 24°C on Tue morning, min 21°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri afternoon. Warm (max 24°C on Sun morning, min 21°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | SW 15 | S 12 | S 11 | S 11 | SW 14 | SW 13 | SW 16 | SW 15 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SSW 14 | SW 14 | SW 13 | SSW 13 | SSW 13 | SSW 13 |
Wave Graph | |||||||||||||||||||||
278 | 214 | 152 | 149 | 118 | 113 | 302 | 171 | 406 | 590 | 590 | 696 | 885 | 834 | 946 | 2151 | 1697 | 1288 | 932 | 946 | 772 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy |
High Tide | 3:41PM0.46m | 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 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | |
— | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 23 | 24 | 23 | 22 | 23 | 22 | 22 | 23 | 23 | 22 | 23 | 22 | 22 | 24 | 23 | 22 | 23 | 22 | 22 |
Feels °C | 25 | 24 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 26 | 25 | 25 | 24 | 24 | 26 | 25 | 24 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | SW 16 | SW 15 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SSW 14 | SW 14 | SW 13 | SSW 13 | SSW 13 | SSW 13 |
278 | 214 | 152 | 149 | 116 | 112 | 302 | 171 | 406 | 590 | 590 | 696 | 885 | 834 | 946 | 2151 | 1697 | 1288 | 932 | 946 | 772 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | S 10 | S 10 | SW 11 | NE 8 | NE 10 | NE 10 | NE 10 | SSW 17 | SSW 16 | SSE 13 | — | SSE 11 | SSW 16 | NE 8 | NE 9 |
255 | 169 | 127 | 114 | 118 | 113 | 48 | 46 | 82 | 9 | 16 | 34 | 33 | 202 | 915 | 16 | — | 12 | 206 | 16 | 12 | |
Swell 3 Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | NE 10 | NE 10 | NE 10 | NE 10 | SW 18 | S 9 | S 9 | S 18 | S 16 | S 14 | NE 9 | — | — | — | — | NE 8 | — | — |
13 | 14 | 15 | 33 | 58 | 34 | 34 | 150 | 26 | 13 | 7 | 5 | 16 | 30 | — | — | — | — | 9 | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Réunion Island | |||||||||||||||||||||
Best forecast wave conditions in Reunion | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











