Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 3 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
24.8° C
1.8° 

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 20 Aug 2026:

  • Best quality surf: Thursday 27 Aug, 10AM (local time) - 10ft (3.0m), 18s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 27 Aug, 10AM (local time) - 10ft (3.0m), 18s period, SSW swell with 5,510 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 1PM (local time) - 2ft (0.6m), 15s 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 Thursday (Aug 20) at 1PM. The primary swell is predicted to be 0.6m and 15s period with a secondary swell of 0.5m 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 3.0m 18s and forecast to arrive on Thursday (Aug 27) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 8s period and expected on Friday (Aug 21) at 4AM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Thu 20th Aug)2ft (0.6m) 15s
Best Surf10AM (Thu 27th Aug)10ft (3.0m) 18s
Most Powerful10AM (Thu 27th Aug)10ft (3.0m) 18s

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


The Lowdown

Alright folks, Rusty here. Let’s take a look at what’s headin’ our way. We’ve got a single spot on the radar for this entire 16-day window, and it’s a ripper, but it’s got a very specific window for the big stuff.

The first decent surf rolls in Thursday morning, August 20th, with a clean 3ft SW groundswell rolling in at 16 seconds. The water is a touch warmer than normal at 77°, which is a nice bonus. The wind is glassy, so it’s clean, but the energy is still weak (350). It’s a gentle start.

Things build nicely through Friday and Saturday, August 21st and 22nd. The swell gets up to 4ft and then 5ft, still from the SW, with that same long period, glassy conditions, and the energy starts to pump up into the moderate range (611 up to 1043). This is where it starts getting really good.

Now, the real standout is Sunday, August 23rd, and it just keeps getting better. By Sunday morning, we’ve got a 8ft SSW groundswell with a 14-second period, and the energy is strong (2313). The wind is glassy. This is excellent surf for experienced surfers. Monday, August 24th, is even chunkier, with a 8ft SSW swell and a 15-second period, and the energy is cranking (2560), still glassy. This is the peak of the first week.

If you’re an expert, the absolute best of the best lands on Friday, August 28th. The morning session is a monster: a 13ft SSW groundswell with a 16-second period, and the combined energy is a massive 11702. The wind is dead calm, glassy. This is exceptional surf, but it’s for experts only. The afternoon stays impressive at 12ft.

After that, the swell slowly fades through the end of August and into the first couple of days of September, but it stays clean and rideable, with waist-to-head-high sets and good shape. The water stays warm.

The Standout: The clear winner is Black Rocks Jetty on Friday, August 28th. That morning, you’ve got a 13ft SSW groundswell with a 16-second period, absolute perfection in the wind department with glassy conditions, and the energy is sky-high (11702). It’s a reef break, so that long-period groundswell will wrap in beautifully. It’s a big day for big-wave chargers only. The morning of Thursday, August 27th, is also a serious contender for the same reason, with a 10ft SSW groundswell at 18 seconds and clean cross-off wind.

Rusty out.

Short Range Forecast

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

Days 4-6 Weather Summary

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

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
3
3
3
3
4
4
4
4
4
4
4
4
4
3
3
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SW
16
0.6
SW
15
0.8
SW
16
1.2
SW
14
1.2
SW
14
1.3
SW
14
1.6
SW
14
1.6
SW
13
1.8
SW
14
2.4
SSW
14
2.2
SW
14
1.8
SW
13
2.3
SSW
15
2.4
SSW
14
2.1
SSW
13
1.8
SSW
13
1.6
SSW
12
1.3
SW
12
1.7
SSW
14
2.3
SSW
16
2.4
SSW
15
Wave Graph
Metric surfscale
Energy kJ
302
171
344
598
590
686
885
846
1161
2313
1895
1067
2387
2068
1449
1083
771
471
1158
2550
2445
Wind (km/h)
5
W
5
N
5
NNW
5
WNW
5
NE
5
SSE
5
WNW
5
NW
0
SSE
5
WSW
5
WNW
5
E
5
N
5
N
5
NE
0
W
5
S
5
S
10
SW
25
S
20
SE
Wind State
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
on
cross-on
cross
High Tide
4:00PM0.39m
1:32PM0.35m
12:15PM0.37m
10:29PM0.37m
12:11PM0.40m
11:00PM0.42m
12:17PM0.43m
11:26PM0.46m
12:28PM0.46m
11:51PM0.51m
12:44PM0.50m
00:16AM0.55m
Low Tide
3:25AM0.25m
4:43AM0.20m
5:01PM0.31m
5:08AM0.16m
5:15PM0.27m
5:32AM0.12m
5:36PM0.23m
5:55AM0.08m
5:59PM0.20m
6:19AM0.05m
6:23PM0.17m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:37
6:37
6:35
6:35
6:33
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:06
6:06
6:07
6:07
6:07
6:07
6:07
 mm
Temp °C
23
22
22
24
22
22
23
23
22
23
22
22
23
22
22
23
23
22
23
23
22
Feels °C
25
25
25
26
24
24
25
25
24
25
24
24
25
24
24
25
25
24
22
20
19
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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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