
Surf Forecasts:
Black Rocks Jetty surf forecast from 18 Jul 2026:
- Best quality surf: Monday 20 Jul, 1AM (local time) - 3.5ft (1.0m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Monday 20 Jul, 10AM (local time) - 7ft (2.2m), 14s period, SSW swell with 1,969 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 7PM (local time) - 3.5ft (1.0m), 14s period with SW 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 (Jul 19) at 7PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.4m 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 2.2m 14s and forecast to arrive on Monday (Jul 20) 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 0.8m 6s period and expected on Thursday (Jul 23) at 1AM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 19th Jul) | 3.5ft (1.0m) 14s |
| Best Surf | 1AM (Mon 20th Jul) | 3.5ft (1.0m) 18s |
| Most Powerful | 10AM (Mon 20th Jul) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Righto, let's have a look at what's on the table here. We're looking at Black Rocks Jetty, a reef break that's exposed to the southwest. Water temp is sitting about average for this time of year, so nothing out of the ordinary there. This spot is very consistent, so there's rarely a dull moment.
We start off this Sunday morning with a bit of a dud. There's a small 3ft SW swell, but the wind is a cross-on from the south, so it's messy. The combined energy is weak at 457. Not worth paddling out for.
Monday the 20th is when things kick off. Holy moly, Monday morning we've got 7ft of SSW groundswell with a 14-second period, and it's glassy – dead calm. The energy reading is a solid 1987, which is strong. This is excellent surf, but at that size, it's strictly for experienced surfers. The afternoon holds 8ft with the same glassy conditions. That's the standout window of the whole run. Clean, powerful, and pumping.
Tuesday the 21st eases a touch to 6ft in the morning with a light north cross-off breeze, keeping it clean. The energy drops a bit to 1102, but still moderate. The afternoon gets a little cross-shore chop. Wednesday the 22nd is another beauty morning – 5ft of S swell with glassy conditions. The energy is 967. This is very good, clean surf.
Thursday the 23rd and Friday the 24th have smaller swell around 3ft to 4ft, and the winds get a bit onshore and cross-shore, so it's more marginal. Saturday the 25th looks cleaner again with glassy mornings, but the swell drops back to 4ft.
Now, hold onto your board for the end of the month. Sunday the 26th afternoon, we see a massive 5ft SW swell with a 20-second period, but the energy jumps to 2352. The wind shifts glassy, so this is a long-period groundswell. Be aware that this kind of swell can be tricky at a beach break, but at a reef like Black Rocks, it's going to be lined up and heavy. For experts only.
Monday the 27th and Tuesday the 28th are absolute crackers. We're looking at 7ft to 8ft SSW swells with 15-16 second periods, and the mornings are glassy. The energy is through the roof, over 2400. This is serious, powerful surf. The crowd situation? It says "sometimes", so expect a few people out, but it's worth it.
Wednesday the 29th afternoon looks like the absolute peak. An 8ft SSW swell with a 16-second period, glassy conditions and a combined energy of 3792. That is a massive, powerful, clean swell. This is the one to circle on the calendar. If you're advanced, get in the water. If you're not, stay on the beach and watch.
The first few days of August keep the run going. The 30th and 31st still hold big 7ft to 8ft swells with glassy mornings, though the afternoons get a little onshore. Saturday the 1st of August starts with a glassy 6ft but the swell period drops to 12 seconds. Sunday the 2nd comes back strong with 8ft and glassy conditions. The run finally fades on Monday the 3rd with some onshore wind.
So overall, there is a serious run of swell here. The absolute standout is Wednesday the 29th of July afternoon – 8ft, 16 seconds, glassy, and a combined energy of 3792. Monday the 27th and Tuesday the 28th are also world-class. For a more manageable but still excellent session, Monday the 20th is the first big day. This is a reef break, so the long-period swells are going to suit it perfectly. Keep an eye on the crowd, but for the experienced surfer, this is a golden run.
- Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Tue morning, min 21°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Wed morning, min 21°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 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) | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | S 12 | S 13 | S 12 | S 12 | S 12 | SW 16 | SW 15 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||
214 | 411 | 360 | 637 | 1969 | 1859 | 1362 | 986 | 820 | 890 | 775 | 1021 | 678 | 477 | 268 | 358 | 496 | 482 | 471 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | glassy | glassy | glassy | glassy | cross-off | cross | cross-on | glassy | cross | cross-off | glassy | on | glassy | on | cross | glassy |
High Tide | 3:48AM0.48m | 4:45PM0.46m | 4:23AM0.42m | 5:12PM0.43m | 5:06AM0.37m | 5:44PM0.41m | 7:30AM0.32m | 6:52PM0.39m | 11:33AM0.34m | 9:13PM0.38m | 11:57AM0.37m | 10:24PM0.40m | |||||||
Low Tide | 10:19AM0.16m | 10:44PM0.25m | 10:48AM0.22m | 11:42PM0.27m | 11:16AM0.27m | 1:22AM0.27m | 12:07PM0.31m | 3:32AM0.24m | 2:59PM0.32m | 4:38AM0.20m | 4:29PM0.30m | ||||||||
— | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | |
— | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 22 | 23 | 22 | 22 | 23 | 22 | 22 | 24 | 23 | 22 | 23 | 23 | 22 | 23 | 23 | 22 | 22 | 22 | 21 |
Feels °C | 22 | 24 | 22 | 24 | 24 | 25 | 24 | 24 | 24 | 23 | 25 | 25 | 23 | 24 | 24 | 23 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SW 16 | SW 15 | SW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | S 12 | S 13 | S 12 | S 12 | S 12 | S 11 | SW 15 | SW 14 | SW 14 |
108 | 411 | 360 | 422 | 1969 | 1859 | 1362 | 986 | 820 | 890 | 775 | 1021 | 678 | 477 | 268 | 237 | 496 | 482 | 471 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | S 5 | S 9 | SSW 18 | SE 11 | — | ESE 8 | SW 12 | SW 11 | SW 11 | SSW 15 | SW 10 | SSW 13 | SSW 12 | SSW 12 | SW 16 | S 11 | S 10 | S 10 |
214 | 15 | 43 | 637 | 18 | — | 6 | 116 | 123 | 96 | 142 | 48 | 222 | 131 | 129 | 358 | 149 | 125 | 122 | |
Swell 3 Height (m) Direction Period (s) | ESE 8 | SSW 10 | S 5 | SSW 9 | — | — | — | — | SW 16 | — | SW 10 | SW 10 | SSW 18 | NE 6 | SSW 16 | NE 8 | NE 9 | NE 9 | NE 9 |
7 | 31 | 5 | 16 | — | — | — | — | 10 | — | 50 | 16 | 60 | 30 | 175 | 21 | 12 | 28 | 26 | |
Wind waves Height (m) Direction Period (s) | SSW 5 | — | — | — | — | — | — | — | — | — | — | — | NE 6 | SE 6 | NE 6 | — | — | SSE 10 | SSE 7 |
20 | — | — | — | — | — | — | — | — | — | — | — | 43 | 54 | 39 | — | — | 394 | 142 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 231 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 5 | 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.










