Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 9 am 25 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 25 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 1AM (local time) - 13ft (4.0m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 4PM (local time) - 13ft (4.0m), 16s period, SSW swell with 8,427 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 7PM (local time) - 4.5ft (1.4m), 13s 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 Tuesday (Aug 25) at 7PM. The primary swell is predicted to be 1.4m and 13s period with a secondary swell of 0.8m and 12s. 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 4.0m 16s and forecast to arrive on Friday (Aug 28) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 7s period and expected on Sunday (Aug 30) at 7PM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Tue 25th Aug)4.5ft (1.4m) 13s
Best Surf 1AM (Sat 29th Aug)13ft (4.0m) 16s
Most Powerful 4PM (Fri 28th Aug)13ft (4.0m) 16s

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


The Lowdown

Alright, grab your wettie, let's have a look at the next few weeks at Black Rocks Jetty. Tuesday morning is actually looking choice to start, with a clean 6ft SSW groundswell and glassy conditions. The water is cooking at 77°F, which is much warmer than normal for this time of year, so you might get away with a spring suit.

That morning session on Tuesday the 25th is the standout early in the period. The swell has some decent energy behind it (1007) and with the wind dead flat, it'll be as clean as it gets for an advanced reef break. By the afternoon, the wind swings cross-on and the quality drops off.

Wednesday the 26th holds a fun 5ft SW swell in the morning with clean cross-off winds, but it’s not as punchy as Tuesday. The real sneaky session is Wednesday afternoon—a 3ft SSW groundswell with a very long 18-second period (1185 energy). That kind of period will give you long, lined-up waves, perfect for the reef, but it might break a bit straight for the beach. Keep it on the point.

Thursday the 27th sees a big jump in size to 10ft SSW, but the wind is onshore in the morning and gets chunkier in the afternoon. That's expert-only territory and even then, it's messy.

Friday the 28th is just huge and blown out—12ft to 13ft with cross-shore winds. Unless you're on a gun and love chop, that’s more of a spectator day.

Saturday the 29th and Sunday the 30th both offer early glassy windows with 12ft and 7ft SSW swells respectively. Saturday morning at 12ft is big but glassy—if you’ve got the chops, go. Sunday morning at 7ft with the same glassy wind is actually the better call for most advanced surfers, as it’s still powerful but a bit more manageable.

Monday the 31st drops right off to 4ft and is pretty weak. From Tuesday the 1st of September through Thursday the 3rd, we’re in a flat spell. The swell drops below 3ft and the energy is minimal (under 100). You’d be fighting for scraps.

Then, on Friday the 4th of September, there's a weird little spike: a 3ft SW swell with a very long 21-second period (619 energy). That’s an odd one—long-period but small. It’s glassy in the afternoon, so if you’re a patient soul on a log, you might find a clean little runner.

The next real window opens up Saturday the 5th of September with a solid 6ft SW groundswell in the afternoon and glassy conditions. That’s your next standout—clean, punchy, and good energy (1477). Sunday morning the 6th is smaller at 4ft and the wind is onshore, so not as clean.

Monday the 7th of September morning is back to a clean 5ft SSW with glass—nice. But the real gem is Monday afternoon: a 7ft SSW groundswell with an 18-second period and zero wind. Glassy, long-period groundswell on the reef? That’s a setup for perfection.

Tuesday the 8th of September morning is still excellent with 8ft SSW and glass, but that’s getting big. Afternoon jumps to 12ft with rain and cross-on wind—messy.

Wednesday the 9th of September is a monster: 16ft SSW swell with a 18-second period in the morning and glassy wind. The finder says it might actually be too big for this break at that size. That’s for the big-wave crew only, and even then, it’s a call you make with caution. Afternoon drops to 15ft but still huge.

So the real standouts? Tuesday morning the 25th of August for that first glassy punch, and Monday afternoon the 7th of September for the long-period, glassy perfection. If you can only pick one, the 7th has the edge for wave quality.

This is a reef break that’s very consistent and exposed to the SW, so when it’s on, it’s on. But there’s a definite gap of flat days from the 1st to the 4th of September where you’ll want to find something else to do. Crowds at Black Rocks can be an issue sometimes, so get there early on the good days.

Stay safe out there.

Rusty

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Fri morning, min 20°C on Fri night). Winds decreasing (fresh winds from the SSE on Fri morning, calm by Sun afternoon).

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
2
3
3
4
3
4
2
5
5
7
7
5
4
4
4
3
3
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
SSW
13
1.6
SSW
12
1.4
SW
12
1.5
SW
12
0.9
SSW
18
2.2
SSW
16
3
SSW
17
3
SSW
17
3.5
SSW
17
3.5
SSW
16
4
SSW
16
4
SSW
16
3.5
SSW
15
3
SSW
15
2.5
SSW
14
2.2
SSW
14
2
SSW
13
1.6
SSW
13
1.2
SSW
12
1.1
S
12
0.9
S
11
Wave Graph
Metric surfscale
Energy kJ
928
797
590
594
553
2599
4874
4873
7421
6937
8427
6999
4779
3601
2671
1910
1377
915
432
347
198
Wind (km/h)
5
W
5
W
5
SSW
10
NNW
5
N
5
S
10
SSW
20
SSW
15
SSE
30
SSE
20
SSE
10
ESE
5
SSW
5
S
5
ENE
5
SSW
10
SSW
5
S
5
ENE
10
SW
5
ESE
Wind State
glassy
cross-on
glassy
cross-off
cross-off
cross-on
on
cross-on
cross-on
cross
cross
cross-off
glassy
cross-on
cross-off
glassy
cross-on
glassy
glassy
on
glassy
High Tide
12:28PM0.46m
11:51PM0.51m
12:44PM0.50m
00:16AM0.55m
1:02PM0.53m
00:43AM0.58m
1:22PM0.56m
1:11AM0.59m
1:44PM0.57m
1:40AM0.59m
2:08PM0.58m
2:11AM0.56m
2:33PM0.57m
2:44AM0.53m
Low Tide
5:59PM0.20m
6:19AM0.05m
6:23PM0.17m
6:43AM0.04m
6:48PM0.15m
7:07AM0.03m
7:14PM0.13m
7:31AM0.04m
7:42PM0.12m
7:56AM0.06m
8:11PM0.11m
8:22AM0.09m
8:43PM0.12m
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:33
6:31
6:31
6:30
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:07
6:07
6:08
6:08
6:08
 mm
Temp °C
24
23
22
24
23
22
23
23
22
22
21
21
21
21
21
22
22
22
23
23
23
Feels °C
24
23
24
24
24
24
23
22
22
18
18
20
21
21
21
23
21
23
24
23
24
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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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