
Surf Forecasts:
Black Rocks Jetty surf forecast from 17 Jul 2026:
- Best quality surf: Monday 20 Jul, 4AM (local time) - 3.5ft (1.1m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Monday 20 Jul, 4PM (local time) - 7.5ft (2.3m), 14s period, SSW swell with 2,002 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 10AM (local time) - 3ft (0.9m), 16s 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 10AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.5m and 10s. 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 Monday (Jul 20) at 4PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Jul 17) at 1PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sun 19th Jul) | 3ft (0.9m) 16s |
| Best Surf | 4AM (Mon 20th Jul) | 3.5ft (1.1m) 17s |
| Most Powerful | 4PM (Mon 20th Jul) | 7.5ft (2.3m) 14s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
G'day, Rusty here. Right, let's have a look at the only wave on the radar for this stretch – Black Rocks Jetty, which is a reef break. There's a bit of a wait for the good stuff, but when it turns on, it's going to be a proper session.
The water is sitting at 76°F, which is about normal for this time of year, so no surprises there.
The first few days are a write-off, honestly. Friday and Saturday have onshore wind and messy conditions. Don't bother. The wait is worth it though, because Sunday the 19th morning sees a shift. We get a glassy 3ft SSW groundswell, period a solid 16 seconds. The energy is moderate (463), and with a light offshore breeze, it'll be clean. It's not huge, but it's a start.
Now, the real standout is Monday the 20th. This is the one to circle on the calendar. We get a glassy, dead-calm morning with a 7ft SSW swell, and the energy is pumping hard at 1807. The afternoon bumps up to 8ft, with energy hitting 2002. This is a strong, powerful groundswell with a period of 14-15 seconds. This is expert territory; over 8ft is for experts only, but this is right on the edge and glassy, so it's a ripper. The wind is calm, the waves are big, and the conditions are excellent for experienced surfers. The only downside? This spot is exposed to the SW, and the optimum swell direction is SW, so this is a direct hit.
Tuesday the 21st morning is still good, with a glassy 6ft SSW swell, but the energy drops to 952. A solid session, but not the standout Monday is.
The next few days see a mix of cross and onshore winds, with waves between 3ft and 4ft. Nothing to get too excited about.
Then we get another cracker. Saturday the 25th afternoon turns glassy again, with a 4ft SW swell (585 energy). It's not big, but it'll be clean.
But the big one for the second week is Sunday the 26th. The morning is glassy with a 4ft SW swell, but the period is a massive 20 seconds. That is very long period groundswell, and the energy is strong at 1279. This is a reef break, so that long period will wrap in beautifully. It's a promising one for experienced surfers, but keep in mind it's a week and a half away, so the forecast is a bit less certain.
After that, Monday the 27th gets big and messy, with 12ft of onshore slop, and Tuesday is similar. But then Wednesday the 29th morning is another absolute standout in the long range. The swell is a solid 12ft from the SSW, period of 16 seconds, and the energy is monstrous at 6506. The wind is glassy. This is a big, powerful, clean swell, but it's definitely for experts only. This is the kind of day you take the day off work for, but you better be confident in your abilities.
The last few days of the month and into August see the swell dropping, with some clean conditions on the 1st of August, but nothing to match those earlier standouts.
If you're looking for the best on offer, it's Monday the 20th for the combo of solid size, glassy conditions, and strong energy, with Wednesday the 29th as the big, powerful, long-range promise.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Fri morning, min 21°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Mon morning, min 21°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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) | S 17 | S 16 | S 14 | S 13 | SSW 11 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | S 12 | S 12 | S 12 | S 12 | S 11 | SSW 15 |
Wave Graph | |||||||||||||||||||||
280 | 590 | 501 | 334 | 170 | 214 | 411 | 415 | 428 | 1785 | 2002 | 1430 | 952 | 735 | 625 | 390 | 493 | 496 | 393 | 308 | 279 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-on | glassy | on | glassy | glassy | glassy | glassy | glassy | on | glassy | cross-on | cross-on | cross | glassy | cross-on | glassy |
High Tide | 3:43PM0.51m | 3:12AM0.53m | 4:16PM0.48m | 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 | ||||||||
Low Tide | 9:19PM0.21m | 9:46AM0.10m | 9:59PM0.23m | 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 | |||||||||
6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | |
— | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 22 | 23 | 23 | 22 | 23 | 22 | 21 | 23 | 22 | 22 | 23 | 23 | 22 | 23 | 22 | 22 | 23 | 23 | 22 |
Feels °C | 26 | 23 | 22 | 23 | 23 | 24 | 25 | 22 | 22 | 25 | 24 | 25 | 25 | 23 | 24 | 24 | 22 | 23 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | S 17 | S 16 | S 14 | S 13 | SSW 11 | SSW 10 | SW 16 | SW 15 | SW 14 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 |
280 | 590 | 501 | 334 | 170 | 139 | 411 | 415 | 428 | 1785 | 2002 | 1430 | 952 | 735 | 625 | 390 | 493 | 496 | 393 | 308 | 240 | |
Swell 2 Height (m) Direction Period (s) | S 10 | N 4 | SW 5 | SW 5 | SW 18 | SW 16 | S 10 | S 9 | SSW 14 | SSE 11 | — | — | — | SW 16 | SW 11 | SSW 14 | SSW 14 | SW 13 | SW 12 | SW 12 | SSW 15 |
78 | 9 | 23 | 13 | 111 | 214 | 47 | 43 | 165 | 22 | — | — | — | 10 | 73 | 180 | 170 | 249 | 152 | 118 | 279 | |
Swell 3 Height (m) Direction Period (s) | NNW 4 | SW 11 | NE 7 | WSW 19 | NE 6 | ESE 8 | SSW 5 | SSW 5 | SSW 18 | — | — | — | — | — | SW 15 | S 14 | SW 10 | SW 18 | SSW 16 | SSW 15 | SW 12 |
13 | 5 | 7 | 36 | 2 | 14 | 5 | 5 | 126 | — | — | — | — | — | 56 | 132 | 61 | 13 | 102 | 89 | 35 | |
Wind waves Height (m) Direction Period (s) | — | SSW 7 | — | — | SW 5 | — | — | — | — | — | — | — | — | — | — | — | — | NE 5 | — | — | — |
— | 35 | — | — | 21 | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 5 | 1 | 2 | 15 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 1 | 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.










