
Surf Forecasts:
Black Rocks Jetty surf forecast from 18 Jul 2026:
- Best quality surf: Monday 20 Jul, 4AM (local time) - 5.5ft (1.7m), 16s period, SW 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, 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 0.4m 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 2.2m 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 0.3m 9s period and expected on Friday (Jul 24) at 4PM.
| 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) | 5.5ft (1.7m) 16s |
| 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
Alright folks, Rusty here. Let’s have a look at the next couple of weeks for Black Rocks Jetty.
The pattern shaping up is a slow start, but patience is going to pay off big time. The first few days are pretty average, but then we get a proper pulse of strong, consistent SW groundswell that will have this reef firing. The water is sitting at 76°F at the start, which is a touch warmer than usual for this time of year (anomaly of 2°F), so it’s a bit of a treat.
Saturday 18th July is a bit of a write-off. The morning has a 3ft S swell at 13 seconds, but it’s onshore, and the wave comment is marginal. The afternoon goes downhill with a cross-on shore breeze and poor conditions. Not worth paddling out for.
Sunday 19th July looks better in the morning. The swell drops a fraction to 3ft, but it’s a cleaner SW groundswell with a 16-second period and glassy conditions. The wave energy is moderate (452). It’s a small day, but it’ll be clean if you’re on a log.
Monday 20th July is where things start to get exciting. A solid 7ft SSW swell rolls in overnight with a 14-second period. The morning is glassy, and the combined energy jumps to a strong 1987. This is excellent for experienced surfers, but that 7ft is getting a bit big for beginners. The afternoon holds similar size at 8ft, still glassy. This is a standout window.
Tuesday 21st July keeps the quality high. You’ve got a 6ft SSW swell, 12-second period, and glassy offshore winds (N) in the morning, with strong energy (1016). The afternoon is clean too, with a WNW breeze. Excellent, clean surf.
Wednesday 22nd July gets a bit messier. The swell holds around 5-6ft, but the wind goes cross-onshore and cross-shore, putting some chop in the water. Still surfable, but not the cleanest.
Thursday 23rd July sees the swell easing to 5ft, with a glassy morning and a 12-second period. It’s a very good, clean option for the intermediate crew.
Friday 24th July looks like a sweet little day. A 4ft SW groundswell with a 15-second period, glassy in the morning. That long period will make it feel bigger and more powerful, but it’s a great size for most.
Saturday 25th July and Sunday 26th July are a bit of a mixed bag. Saturday sees small, weak swell (4ft, 652 energy) with cross-on wind. Sunday morning is tiny (2ft) but with a very long 20-second period and glassy conditions – it’ll be super clean but small. The afternoon gets a bump in size (5ft) but with rain showers and cross-on wind.
Monday 27th July is the absolute standout of the whole forecast. This is a serious swell. We’re looking at a 10ft SSW groundswell with a 17-second period, glassy in the morning. The combined wave energy is a massive 5905. This is exceptional, expert-level surf. It’s too big for anyone but the best. This is a huge, powerful groundswell that will be at its best on a reef like this.
Tuesday 28th July and Wednesday 29th July keep the size hefty at 10ft. Mornings are glassy, afternoons get a bit onshore. Still, for the experts, this is a solid run of big, clean waves.
Thursday 30th July sees the swell ease back to 5-6ft, with glassy conditions and a 14-second period. Excellent conditions for experienced surfers again.
Friday 31st July through to the start of August, the surf drops back to a more manageable 3-5ft, with clean conditions. A nice end to the run.
The standout sessions are the glassy mornings of Monday 20th July and Monday 27th July. The 20th is a great size for experienced surfers, and the 27th is a proper big-wave day for experts only. The jetty is a very consistent reef, so it’ll handle the swell well, but keep in mind that when the swell is that big and long-period, it can be a bit of a handful. Crowds are possible here from time to time, so get in early.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Sat morning, min 21°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed afternoon. Warm (max 23°C on Tue morning, min 21°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 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) | S 13 | SSW 11 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 14 | SSW 13 | 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 |
Wave Graph | |||||||||||||||||||||
334 | 170 | 214 | 411 | 360 | 534 | 1969 | 1859 | 1341 | 890 | 793 | 748 | 878 | 1155 | 681 | 553 | 380 | 425 | 503 | 482 | 424 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | glassy | on | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross | cross-off | glassy | cross-on | glassy | glassy | cross-on | glassy |
High Tide | 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 | 11:57AM0.37m | 10:24PM0.40m | ||||||||
Low Tide | 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 | 4:38AM0.20m | 4:29PM0.30m | |||||||||
6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | |
— | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 22 | 23 | 22 | 22 | 23 | 22 | 22 | 23 | 23 | 22 | 23 | 22 | 21 | 22 | 23 | 22 | 23 | 22 | 21 |
Feels °C | 24 | 22 | 22 | 24 | 23 | 24 | 25 | 24 | 24 | 24 | 25 | 23 | 24 | 21 | 21 | 23 | 24 | 23 | 23 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | S 13 | SSW 11 | SSW 10 | SW 16 | SW 15 | SW 14 | SSW 14 | SSW 13 | 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 |
334 | 170 | 108 | 411 | 360 | 422 | 1969 | 1859 | 1341 | 890 | 793 | 748 | 878 | 1155 | 681 | 553 | 380 | 289 | 503 | 482 | 424 | |
Swell 2 Height (m) Direction Period (s) | SSW 5 | SW 18 | SW 16 | SSW 10 | S 9 | SSW 18 | SE 11 | — | ESE 8 | SW 12 | SW 12 | SW 11 | SSW 15 | SW 10 | SSW 13 | SSW 12 | SSW 12 | SSW 16 | S 11 | NE 9 | S 10 |
18 | 111 | 214 | 31 | 43 | 534 | 18 | — | 6 | 116 | 106 | 96 | 142 | 34 | 225 | 101 | 131 | 425 | 181 | 13 | 118 | |
Swell 3 Height (m) Direction Period (s) | WSW 19 | NNE 6 | SSW 5 | SSW 5 | SSW 5 | SSW 9 | — | — | — | SW 16 | SW 16 | — | SW 10 | — | — | SSW 16 | SSW 16 | NE 9 | NE 9 | — | ENE 7 |
36 | 4 | 20 | 10 | 5 | 16 | — | — | — | 10 | 10 | — | 64 | — | — | 147 | 169 | 13 | 13 | — | 5 | |
Wind waves Height (m) Direction Period (s) | — | SSW 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 10 | — |
— | 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 239 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 5 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 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.










