Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 3 pm 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
25.1°C
2.2° 

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 28 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 10AM (local time) - 11ft (3.5m), 15s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 10PM (local time) - 13ft (4.0m), 16s period, SSW swell with 7,600 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 10AM (local time) - 11ft (3.5m), 15s 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 Saturday (Aug 29) at 10AM. The primary swell is predicted to be 3.5m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Black Rocks Jetty in the next 16 days are 4.0m 16s and forecast to arrive on Friday (Aug 28) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Thursday (Sep 03) at 7PM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sat 29th Aug)11ft (3.5m) 15s
Best Surf10AM (Sat 29th Aug)11ft (3.5m) 15s
Most Powerful10PM (Fri 28th Aug)13ft (4.0m) 16s

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


The Lowdown

Alright folks, Rusty here. Grab a coffee and let’s get into it. We’ve got a wild ride coming to Black Rocks Jetty, but you’ll need to be patient. The first week is all about waiting for the right windows, but the second half of the outlook has some serious potential if you’re willing to wait.

This is a reef break, very consistent and exposed to the SW swell. It’s an advanced spot, so this is not the place for learners. The water is sitting at a balmy 77°F, which is much warmer than normal for this time of year – over four degrees above average, so you can leave the thick rubber at home. The jetty focuses that energy, but the size and power we’re seeing means this is for experienced surfers only.

We kick off on Friday the 28th of August with a meaty 12ft SSW swell (7390 energy units) but it’s a write-off. That 16 mph SSE cross-wind is going to put a nasty chop on it. Avoid it.

Saturday the 29th of August is the first real standout. Morning sees the same 12ft SSW groundswell, but the wind has dropped to a 3 mph cross-offshore breeze from the ESE. That’s a clean-up. The afternoon is even better – absolutely glassy, with a 10ft SSW swell. This is powerful, long-period stuff (15 seconds) that will be bending around the jetty perfectly for the crew that can handle it. This is as good as it gets for the first week. Crowds are possible here, so get in early.

Sunday the 30th is another gem. Glassy conditions from dawn to dusk. The swell drops from 8ft to 7ft, but the period is still a solid 13-14 seconds. Combined energy is still strong (2106 to 1512). For a reef, this is dreamy stuff. Clean, powerful lines.

Monday the 31st is the turning point. The morning is glassy with a smaller 5ft S swell, and it’s still clean. But the afternoon goes to crap as the onshore wind and smaller swell kill it. From Monday afternoon through to the end of the first week, we are looking at weak, small surf. There’s a grim stretch from the 31st of August right through to the 4th of September where the swell drops below 3ft and the energy is down in the hundreds. The jetty will be flat. Don’t bother.

Saturday the 5th of September we see life again. Saturday morning delivers a clean, glassy 6ft SW groundswell with a very long 16-second period. That’s a serious groundswell. The energy jumps back up to 1726. The caveat here is that long period swells can be a bit too straight for some beach breaks, but on a reef like this, it’s going to produce some beautiful, shaped up barrels. The afternoon gets a bit bumpy with cross-onshore wind, so stick to the early session.

Sunday the 6th of September afternoon is the true second-week standout. After a bumpy morning, the afternoon cleans up with a cross-offshore breeze and a pumping 7ft SSW swell (3032 energy) with an 18-second period. Once again, the caveat about the long period is there, but on the reef, this is going to be an absolute beast of a session for experts. This is a serious step-up day.

After Sunday, the forecast gets messy again. The 7th and 8th of September see onshore winds and size that is both big (10ft to 12ft) and blown out. That’s a kite-surfing setup, not a paddle session. The 9th is cross-shore and choppy.

The final window is Saturday the 12th of September. The morning is glassy again, with a 7ft S swell and a solid 15-second period. This is a promising, clean day to wrap up the run. The energy is good (1963), but the crowd situation is likely, so be prepared to share the peak.

Overall, don’t waste your energy on the flat spell in the middle. Focus on Saturday the 29th of August and the glassy sessions on Sunday the 30th. For the second week, the morning of the 5th and the afternoon of the 6th of September are your best bets – but remember, long period swells demand respect and experience.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Fri afternoon, min 20°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 24°C on Wed morning, min 21°C on Mon night). Wind will be generally light.

Fri
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
5
6
5
5
4
4
4
3
3
1
2
1
1
1
0
1
1
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
SSW
16
4
SSW
16
3.5
SSW
15
3
SSW
15
2.5
SSW
14
2.3
SSW
14
2.1
SSW
13
1.6
SSW
13
1.4
S
12
1.2
S
12
1
S
12
0.8
S
11
0.7
S
11
0.6
S
10
0.3
SW
14
0.4
SW
14
0.5
SW
14
0.6
SW
13
0.6
SW
13
0.6
SW
12
Wave Graph
Metric surfscale
Energy kJ
6851
7163
4900
3932
2948
2106
1512
915
574
418
266
149
112
73
33
73
99
109
106
124
Wind (km/h)
25
SSE
15
SSE
5
ESE
5
ENE
0
NE
0
N
5
NW
5
E
5
W
5
SSW
0
NNW
5
WNW
5
SSE
5
S
5
WSW
5
SSW
5
SSW
5
WSW
5
SW
5
WSW
Wind State
cross
cross-on
cross-off
glassy
glassy
glassy
glassy
glassy
glassy
on
glassy
glassy
glassy
glassy
cross-on
glassy
glassy
glassy
on
glassy
High Tide
1:11AM0.59m
1:44PM0.57m
1:40AM0.59m
2:08PM0.58m
2:11AM0.56m
2:33PM0.57m
2:44AM0.53m
3:00PM0.54m
3:22AM0.47m
3:30PM0.50m
4:10AM0.40m
4:07PM0.46m
Low Tide
7:14PM0.13m
7:31AM0.04m
7:42PM0.12m
7:56AM0.06m
8:11PM0.11m
8:22AM0.09m
8:43PM0.12m
8:49AM0.13m
9:19PM0.13m
9:17AM0.18m
10:04PM0.16m
9:47AM0.24m
11:16PM0.19m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:30
6:28
6:28
6:28
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:08
6:08
6:08
6:08
6:09
6:09
 mm
Temp °C
23
21
21
21
21
22
22
22
23
22
22
23
23
22
24
23
22
24
24
23
Feels °C
19
17
21
21
21
23
22
22
23
22
22
24
24
24
25
25
24
25
25
24
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  • 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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