
Surf Forecasts:
Black Rocks Jetty surf forecast from 20 Jul 2026:
- Best quality surf: Monday 27 Jul, 7PM (local time) - 8ft (2.5m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 27 Jul, 10AM (local time) - 10ft (3.0m), 16s period, SSW swell with 4,320 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 4AM (local time) - 6ft (1.9m), 12s 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 (Jul 21) at 4AM. The primary swell is predicted to be 1.9m and 12s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Black Rocks Jetty in the next 16 days are 3.0m 16s and forecast to arrive on Monday (Jul 27) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 8s period and expected on Tuesday (Jul 21) at 4AM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 21st Jul) | 6ft (1.9m) 12s |
| Best Surf | 7PM (Mon 27th Jul) | 8ft (2.5m) 16s |
| Most Powerful | 10AM (Mon 27th Jul) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
G'day, Rusty here. Let's get stuck into the outlook for the next couple of weeks at Black Rocks Jetty.
We've got a decent run of surf on the cards, but it's a bit of a mixed bag, so you'll need to pick your moments. The real standout is that Tuesday the 28th and the beginning of August, but let's start from the beginning.
The first decent option kicks off on Tuesday morning, the 21st of July. The swell is a solid 6.0 ft from the SSW with a 12-second period, and combined energy is pumping at 1112 (moderate wave energy). The real beauty is the wind: glassy, from the north at 3 mph. It's a glassy morning, which means clean, smooth faces. This is an advanced reef break, so it's not for the faint-hearted, but for those who can handle it, the conditions are excellent. The water temperature is about average for this time of year.
Tuesday afternoon holds the same quality, with the wind switching to a glassy NNW at 3 mph, still 6.0 ft SSW swell, and energy at 1049. Another solid session.
Wednesday the 22nd sees the swell drop to 5.0 ft from the S, still a 13-second period, but the wind turns cross-onshore from the S at 3 mph in the morning, building to 9 mph in the afternoon. It gets a bit choppy and marginal, so not the best day.
Thursday the 23rd is a better call. The morning is glassy with a SE wind at 3 mph, and the swell is 4.0 ft from the S with a 12-second period. Energy is 641 (weak wave energy), but the glassy conditions make it a very good session for a smaller wave day.
Friday the 24th and Saturday the 25th mornings both have glassy conditions with a 3.6 ft SW swell, but the period jumps to 15 seconds on Friday and 13 seconds on Saturday. Energy is in the 683-691 range (weak wave energy). The longer period on Friday means better-shaped waves, but at a beach-reef setup, it can break a bit straight. Still, glassy is glassy, and it's worth a look.
Sunday the 26th is a write-off. Strong southerly winds at 16 mph and a messy cross-onshore chop make for poor conditions, despite a 3.6 ft SW swell. The afternoon has a 20-second period, but the wind just ruins it.
Now, here's the big one. Monday the 27th of July brings a pumping 10.0 ft swell from the SSW with a 16-second period. The combined energy is massive at 4320 (strong wave energy). That's a heavy swell, over 8.0 ft, so it's strictly for experts. Unfortunately, the wind is a cross-onshore from the SSE at 9 mph, making it a bit choppy and marginal. For the brave, it's a serious challenge, but the wind isn't doing it any favours.
Then, Tuesday the 28th of July is a definite standout. The morning is glassy with a W wind at 3 mph, and the swell is 6.2 ft from the SW with a 15-second period, energy at 1959 (moderate wave energy). The afternoon goes next level: glassy again, with a calm SSW wind at 0 mph, and the swell builds to 6.6 ft from the SSW. Energy jumps to 2517 (strong wave energy). This is top-tier, clean, powerful surf for experienced surfers. This is the session to target.
Wednesday the 29th has a good afternoon session with a glassy NW wind at 3 mph, a 5.0 ft S swell with a 14-second period, and energy at 1449 (moderate wave energy). The morning is a bit cross-shore, but the afternoon cleans up nicely.
Thursday the 30th is small, with 2.6 ft SW swell, and the wind is cross-onshore, so it's a marginal day.
Now, another big highlight: Friday the 31st of July. The morning is glassy with a calm SSW wind at 0 mph, a 4.3 ft SSW swell with a very long 19-second period, and energy at 1745 (moderate wave energy). The afternoon is even better: glassy again, calm NW wind, and the swell jumps to 6.6 ft from the SSW with an 18-second period, energy at 2482 (strong wave energy). That's a long-period groundswell with perfect conditions. This is the other standout of the 16-day window.
Saturday the 1st of August continues the run. The morning is glassy with a W wind at 3 mph, a 6.9 ft SSW swell with a 15-second period, and energy at 2089 (
Short Range ForecastMostly dry. Warm (max 23°C on Tue morning, min 21°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Sun morning. Warm (max 23°C on Sat morning, min 20°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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 13 | SSW 12 | SSW 12 | S 12 | S 13 | S 13 | S 12 | S 12 | S 12 | SSW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 | SW 13 | SW 20 | SW 18 |
Wave Graph | |||||||||||||||||||
1362 | 986 | 916 | 898 | 737 | 734 | 600 | 407 | 330 | 436 | 503 | 614 | 548 | 444 | 599 | 509 | 376 | 851 | 1947 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | glassy | glassy | cross-on | cross-on | glassy | glassy | cross-on | cross | glassy | cross-on | glassy | glassy | on | glassy | cross-on | cross-on | cross-on |
High Tide | 5:06AM0.37m | 5:44PM0.41m | 7:30AM0.32m | 6:52PM0.39m | 11:33AM0.34m | 9:13PM0.38m | 11:57AM0.37m | 10:24PM0.40m | 12:15PM0.39m | 11:05PM0.43m | 12:34PM0.42m | 11:38PM0.46m | |||||||
Low Tide | 11:42PM0.27m | 11:16AM0.27m | 1:22AM0.27m | 12:07PM0.31m | 3:32AM0.24m | 2:59PM0.32m | 4:38AM0.20m | 4:29PM0.30m | 5:15AM0.15m | 5:13PM0.27m | 5:46AM0.11m | 5:46PM0.24m | |||||||
— | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | |
— | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 22 | 23 | 23 | 22 | 23 | 23 | 22 | 23 | 23 | 21 | 22 | 22 | 22 | 23 | 23 | 21 | 22 | 21 | 20 |
Feels °C | 24 | 25 | 25 | 24 | 24 | 23 | 24 | 25 | 23 | 22 | 22 | 22 | 23 | 23 | 22 | 21 | 19 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 12 | S 12 | S 13 | S 13 | S 12 | S 12 | S 12 | S 11 | SW 15 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 | SW 13 | SW 20 | SW 18 |
1362 | 986 | 916 | 898 | 737 | 734 | 600 | 407 | 330 | 253 | 503 | 614 | 548 | 444 | 599 | 509 | 376 | 851 | 1947 | |
Swell 2 Height (m) Direction Period (s) | ESE 8 | SW 12 | SW 11 | SW 11 | SW 10 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SSW 16 | S 11 | S 10 | S 10 | SSW 16 | S 9 | SSE 9 | SW 21 | SW 12 | SSW 8 |
6 | 116 | 123 | 96 | 82 | 217 | 219 | 131 | 131 | 436 | 188 | 154 | 94 | 196 | 39 | 25 | 222 | 220 | 251 | |
Swell 3 Height (m) Direction Period (s) | — | SW 16 | SW 16 | — | SSW 15 | SW 10 | NE 5 | SSW 16 | SSW 16 | NE 9 | NE 10 | NE 10 | NE 10 | S 9 | NE 9 | NE 8 | S 8 | SE 8 | SSW 12 |
— | 10 | 10 | — | 188 | 60 | 6 | 103 | 175 | 13 | 14 | 15 | 14 | 43 | 12 | 11 | 12 | 3 | 190 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SE 5 | — | SSE 5 | — | — | — | — | — | — | — | — | S 5 | S 8 |
— | — | — | — | — | — | 28 | — | 33 | — | — | — | — | — | — | — | — | 37 | 461 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 31 | 0 | 31 | 27 | 3 |
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.










