Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 9 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
25.2°C
2.3° 

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 27 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 4AM (local time) - 11ft (3.5m), 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 8,605 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 4AM (local time) - 11ft (3.5m), 16s 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 4AM. The primary swell is predicted to be 3.5m and 16s 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 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 10s period and expected on Monday (Aug 31) at 1AM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 29th Aug)11ft (3.5m) 16s
Best Surf 4AM (Sat 29th Aug)11ft (3.5m) 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

Righto, mates. Rusty here, and I’ve been staring at the charts for our stretch of coast, getting a feel for what’s coming in over the next couple of weeks. We’ve got a bit of a waiting game on our hands, but when it turns on, it’s gonna be a proper show.

We’re starting with a real bang on Thursday morning, August 27th. There’s a solid, powerful groundswell rolling in from the SSW, pushing a 10-foot face with a super long 17-second period. The energy is full-on, reading 4932 – that’s some serious juice. And with the water temp sitting at 77.4°F, nearly 4.1°F warmer than it should be for this time of year, the whole place feels alive and tropical. It’s glassy as a mirror with that super light offshore air, so conditions for experienced surfers are about as good as they get. The swell direction is spot-on for the reef. This is the standout window, plain and simple.

Later that same afternoon, we’ll see things get a little bumpy as a gentle breeze swings cross-onshore, making the lineup a bit choppy and the tide a bit tricky. It’ll still be 10 feet and powerful, but the magic is gone for the day. Friday, the 28th, is a washout – the wind picks up hard from the SSE, and it’s onshore and lumpy all day. There’s plenty of energy, with the combined total jumping to over 7500, but it’s gonna be a messy, blown-out mess. The setup looks more interesting for kite surfing than paddle surfing that day. You’d be mad to paddle out on that.

We get a proper reset for Saturday, the 29th. The swell eases a touch to 11 feet in the morning, but it’s absolutely glassy again with light ESE airs. It’s still a big, powerful SSW swell with strong energy (4900), and conditions are once again excellent for the experienced crew. The afternoon stays in the 10-foot range and stays glassy – a proper day for charging. Sunday, the 30th, sees the swell mellow out to a still-very-fun size of 7.5 feet in the morning and 7 feet in the afternoon, clean and glassy the whole time. It’s a classic, powerful SSW pulse with energy in the 2000s and 1500s, and it’s all about getting some clean reefs to yourself.

After that, we ease off into the start of the new week. Monday, the 31st, has some clean little 4-foot waves, but the energy is dropping fast (497). It’s surfable, but lacks the grunt of the weekend. From Tuesday, September 1st, things go quiet. We’re looking at a solid gap for several days where the swell just disappears, dropping to less than 3 feet and sometimes down to 1.5 feet. The energy reading bottoms out in the double digits. The wind is mainly light and variable, but there’s just nothing to ride. This is the flat spell, the lull before the next pulse. When it’s this flat, you just have to be patient. Given how consistent this spot usually is, it tends not to stay this poor for long.

Then, we’ve got a comeback on tap for Saturday, September 5th. A new SSW groundswell starts to fill in, pushing 5.5 feet in the morning. The morning is a bit iffy with a light onshore, but the afternoon is the real deal: 6 feet, clean, and with a light cross-offshore wind. The energy is back up over the 1400 mark. It’s the first taste of the fun to come. Sunday, September 6th, keeps it alive with 5- to 5.5-foot waves and clean conditions, and the energy holds in the 1200s. Then Monday, the 7th, builds back up to 7 feet, but the wind and tide look a bit messy, making it marginal.

The real standout of this next pulse shapes up for Wednesday, September 9th. The swell jumps back up to a strong 10 feet with a long 17-second period from the SSW, and the energy is back up over 5000. The afternoon is glassy and clean, offering excellent conditions for the experts. This is the other big day on the calendar. The next couple of days on the 10th and 11th are still solid, with 7-foot and 4-foot waves respectively, and plenty of clean windows, but they’re not quite at that same level.

So, when you boil it down, you’ve got two massive sessions: Thursday, August 27th, and Wednesday, September 9th. They’re both big, powerful SSW swells hitting the reef perfectly. The first one is a sure thing, the second is a lot further out, so treat it as promising but not locked in. The long periods are what make this reef sing, and both days have that in spades. For the board riding it, the size is definitely one for the advanced crew. Beginners will want to give these days a miss, but if you’ve got the skill, it’s going to be on.

Catch you in the water.

Short Range Forecast

Light rain (total 2mm), mostly falling on Thu night. Warm (max 23°C on Thu morning, min 20°C on Fri night). Winds increasing (calm on Thu morning, fresh winds from the SSE by Thu night).

Days 4-6 Weather Summary

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

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
5
2
6
0
0
5
5
5
4
4
4
3
2
2
2
1
0
0
0
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)
3
SSW
17
3
SSW
17
3.5
SSW
17
4
SSW
16
4
SSW
16
3.5
SSW
16
3.5
SSW
15
3
SSW
15
2.5
SSW
14
2.3
SSW
14
2.1
SSW
13
1.7
SSW
13
1.3
S
12
1.2
S
12
1
S
12
0.8
S
11
0.7
S
11
0.5
S
10
0.4
SSE
10
0.4
SW
14
0.5
SW
14
Wave Graph
Metric surfscale
Energy kJ
4874
4873
7795
7361
8605
6667
4900
3932
2948
2048
1512
1026
497
418
266
149
112
52
33
73
97
Wind (km/h)
5
SSW
15
SSW
15
S
30
SSE
25
SSE
15
SSE
5
ESE
5
ENE
5
ENE
5
SW
5
SSW
5
SE
5
S
5
WSW
5
SSE
5
NW
10
SSW
5
SSE
5
WSW
5
N
0
NW
Wind State
glassy
cross-on
cross-on
cross-on
cross-on
cross
glassy
glassy
glassy
glassy
glassy
cross
glassy
glassy
glassy
glassy
cross-on
glassy
cross-on
glassy
glassy
High Tide
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
3:00PM0.54m
3:22AM0.47m
3:30PM0.50m
Low Tide
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
8:49AM0.13m
9:19PM0.13m
9:17AM0.18m
10:04PM0.16m
clear
clear
rain showers
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:31
6:31
6:30
6:28
6:28
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:08
6:08
6:08
6:08
6:09
 mm
1
1
Temp °C
23
23
22
22
22
21
21
21
21
22
22
22
23
22
22
23
23
22
24
23
23
Feels °C
24
22
22
18
19
19
21
21
21
22
23
22
23
23
23
23
23
23
25
24
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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