Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 9 am 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
24.2°C
1.0° 

Black Rocks Jetty surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Black Rocks Jetty surf forecast from 11 Sep 2026:

  • Best quality surf: Wednesday 16 Sep, 1AM (local time) - 8ft (2.5m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 16 Sep, 4AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,622 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 1PM (local time) - 3.5ft (1.0m), 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 Friday (Sep 11) at 1PM. The primary swell is predicted to be 1.0m and 12s period with a secondary swell of 0.9m and 13s. 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 2.5m 16s and forecast to arrive on Wednesday (Sep 16) at 4AM. 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 6s period and expected on Friday (Sep 11) at 4PM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Fri 11th Sep)3.5ft (1.0m) 12s
Best Surf 1AM (Wed 16th Sep)8ft (2.5m) 16s
Most Powerful 4AM (Wed 16th Sep)8ft (2.5m) 16s

Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.


The Lowdown

G’day, Rusty here. We’ve got a solid 16-day window ahead of us at Black Rocks Jetty, and I’m telling ya, there’s some real gems in this run. The water is sittin’ at 75.7°, which is a touch warmer than normal for this time of year – you’ll feel it, trust me.

This reef break is set for a good run of south-southwest groundswell, with plenty of long-period action. It’s a very consistent spot and exposed to the swell, so when it’s on, it’s on. The optimum direction is SW, and we’ll see a lot of that over the coming days.

The standout of the whole period is without a doubt Sunday September 13th afternoon. We’re talking 6.2 ft of SSW swell with a 16-second period – that’s proper groundswell with heaps of energy (1857 combined energy). And get this: absolutely glassy, not a breath of wind. For a reef break, that’s as good as it gets. It’s bigger than 5 ft so it’s getting solid, but for experienced surfers, this is the session you wait for. Excellent conditions.

But if you want the biggest of the big, mark Saturday September 26th morning and afternoon. Swell hits 8.2 ft from the SSW with a 16-second period, and the energy is through the roof – over 3000! Again, glassy as a mirror. This is expert territory, though – over 8.2 ft, so only the crew with some serious experience should be out there. It’s a long-period swell, so it’ll be best at this reef, with longer lulls between sets making the paddle out a bit easier. A real Sunday-session-in-waiting.

Now, let’s walk through it chronologically.

The first surf comes in Friday September 11th. Morning has 3.6 ft from the south, period 12 seconds, with glassy conditions and light WSW wind. Combined energy is 538 – moderate. Afternoon drops to 2.3 ft but with a very long 18-second period from the SSW, and the energy jumps to 720. Still glassy. Nice clean starter, but not the highlight.

Saturday September 12th is a bit mixed. Morning has 4.6 ft SSW with a 14-second period, but a light cross-shore wind – not ideal. Afternoon cleans up nicely with 4.3 ft, glassy, and that same 14-second period. Good, not great.

Then we hit Sunday September 13th as mentioned – the first big standout. Morning is 5.2 ft with a 17-second period, but a light cross-onshore wind mucks it up a little. The afternoon is the one.

Monday September 14th morning still has 5.2 ft from the SW, but the wind is onshore and it’s marginal. Afternoon gets choppy with stronger cross-onshore breeze – poor conditions, avoid it.

Tuesday September 15th is interesting. Morning has 4.3 ft with an 18-second period – very long period, that’s groundswell – but light cross-onshore. Afternoon, though, glassy again with 5.2 ft from the SW. Excellent conditions for experienced crew.

Wednesday September 16th is another top contender. Morning glassy, 5.9 ft from the south, 16-second period, energy 2921. That’s strong. Afternoon glassy again, 7.5 ft SSW, 14 seconds. This is solid expert territory – fantastic.

Thursday September 17th morning is clean glass with 4.9 ft from the south, 13 seconds. Good session, but afternoon turns cloudy with offshore wind – marginal.

Friday September 18th drops off. Morning has 2.6 ft with a cross-off wind – clean but small. Afternoon is choppy.

Saturday September 19th and Sunday September 20th sees a return to glassy conditions. Swell stays around 3.3 to 4.3 ft from the SW, periods 14 to 16 seconds. Very clean, good fun for all levels.

Monday September 21st is clean again with 3.6 to 3.9 ft from the SW – a nice consistent run.

Tuesday September 22nd is another standout. Morning glassy, 4.9 ft from the SSW with an 18-second period and energy 1992 – that’s strong. Afternoon glassy too, 5.9 ft with a 17-second period, energy 2642. Excellent for experienced surfers.

Wednesday September 23rd sees the swell building but the wind turns cross-onshore. 7.2 ft in the morning, 6.2 ft in the afternoon – both strong energy, but the wind makes it marginal.

Thursday September 24th is blown out. 15.5 mph south wind in the morning, 12.4 mph in the afternoon – choppy and poor. Give

Short Range Forecast

Mostly dry. Warm (max 23°C on Sat morning, min 21°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Mon morning, min 20°C on Tue night). Wind will be generally light.

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
3
3
3
4
3
4
4
3
2
3
4
4
5
4
4
4
3
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
S
12
0.7
SSW
18
1.1
SSW
16
1.4
SSW
14
1.3
SSW
14
1
SW
19
1.6
SSW
17
1.9
SSW
16
1.7
SSW
14
1.6
SW
14
1.4
SW
13
1.2
SW
12
1.4
SW
18
1.6
SW
17
2.5
SSW
16
2.5
SSW
15
2.3
SSW
14
1.9
SSW
14
1.5
S
13
1.2
S
12
1.2
S
12
Wave Graph
Metric surfscale
Energy kJ
330
318
653
763
624
738
1491
1857
1261
907
711
449
1124
1384
3173
2899
2197
1341
775
409
418
Wind (km/h)
5
WSW
5
N
0
SE
5
NNW
0
NNW
5
S
5
W
0
SE
0
SW
5
SSE
15
SSE
10
SE
5
E
0
S
10
ENE
5
SW
0
SE
0
NE
5
WNW
5
SW
5
NE
Wind State
glassy
cross-off
glassy
glassy
glassy
glassy
cross-on
glassy
glassy
glassy
cross
cross
cross-off
glassy
cross-off
glassy
glassy
glassy
glassy
on
glassy
High Tide
1:24PM0.59m
1:21AM0.59m
1:45PM0.58m
1:50AM0.57m
2:03PM0.56m
2:16AM0.52m
2:18PM0.53m
2:40AM0.47m
2:31PM0.50m
3:01AM0.42m
2:43PM0.47m
3:20AM0.36m
2:53PM0.44m
3:39AM0.31m
Low Tide
7:18PM0.10m
7:32AM0.05m
7:46PM0.10m
7:56AM0.09m
8:14PM0.10m
8:17AM0.14m
8:40PM0.12m
8:34AM0.18m
9:05PM0.14m
8:41AM0.22m
9:29PM0.18m
8:31AM0.25m
9:55PM0.21m
part cloud
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part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:16
6:16
6:16
6:15
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:12
6:12
6:13
6:13
6:13
6:13
 mm
Temp °C
22
22
21
23
22
22
22
22
21
22
22
21
22
22
21
21
21
21
22
22
21
Feels °C
22
22
21
24
23
23
23
24
22
23
21
21
23
23
21
21
22
22
23
22
21
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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