Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 9 pm 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
24.5°C
1.4° 

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 7 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 7PM (local time) - 11ft (3.5m), 15s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 1AM (local time) - 15ft (4.5m), 19s period, SSW swell with 13,462 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 8 Sep, 7PM (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 Tuesday (Sep 08) at 7PM. The primary swell is predicted to be 3.5m and 15s period with a secondary swell of 2.1m and 20s. 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 4.5m 19s and forecast to arrive on Wednesday (Sep 09) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Friday (Sep 11) at 10PM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Tue 8th Sep)11ft (3.5m) 15s
Best Surf 7PM (Tue 8th Sep)11ft (3.5m) 15s
Most Powerful 1AM (Wed 9th Sep)15ft (4.5m) 19s

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


The Lowdown

Alright, folks, Rusty here. Let's talk about the only game in town for the next couple of weeks: Black Rocks Jetty.

We've got a solid run of swell headed our way, starting right out of the gate. This isn't a week for the faint of heart, though. We're looking at a serious, long-period groundswell from the SSW that's gonna light up this exposed reef. The water temp is sitting about average for this time of year, so no surprises there.

The action kicks off on Tuesday, September 8th. The morning sees a solid 7ft SSW groundswell, but it's a bit on the messy side with a cross-shore breeze. The real energy builds into the afternoon as the swell jumps to 12ft, with a combined energy reading of 8583 – that's a lot of power. The wind is still cross, so it's a bit lumpy, but the size is undeniable.

Wednesday, September 9th is where it gets interesting. The morning still has that 12ft monster with a 17-second period, but it's cross-on. Then, the afternoon... holy moly. The wind drops to absolutely zero. Glassy conditions, 12ft of SSW groundswell. The combined energy is 6300. This is exceptional, but make no mistake, this is for experts only. That wave face is going to be a heaving wall. If you're not comfortable on a big, powerful reef, stay on the beach and watch.

The swell backs down a touch into Thursday, but the periods are still long. Thursday afternoon is a standout for the more experienced crew: 5ft of SW swell, glassy conditions, and a combined energy of 1483. That's a much more manageable size but still plenty of grunt.

Friday through Sunday (September 11th-13th) see the swell dip a bit but hold in the 4ft to 7ft range. The wind is glassy or light for most of these sessions, making for clean conditions. The 6ft SSW swell on Sunday morning with that 17-second period (combined energy 1975) is a prime window for the skilled surfer. The 7ft on Sunday afternoon is another big one.

Now, look ahead to Friday, September 18th. This is a long-range call, but it's a promising one. We could see a 4ft SW swell, but with a crazy 23-second period. That's a very, very long groundswell. The energy is 2022 and the wind is clean cross-off. The afternoon then jumps to 6ft with a 21-second period and a combined energy of 3578, with glassy conditions. This is a world-class setup for a reef, but those long-period swells can be a bit straight and tricky on a beach break. Here, on this reef, it should be unbelievable.

The run continues through to the 21st, but the size starts to fade. We get a bit of a dry spell from the 22nd onwards, with some small, weak swell (energy dropping to 245 and below) that's not really worth getting wet for. It'll be a wait-and-see after that.

Overall, the best bets are Wednesday afternoon (September 9th) for the pure power and glass, and the long-range promise of Friday the 18th. Keep in mind, this spot can get crowded, and it's for advanced surfers only when it's over 8ft.

Stay safe out there.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Tue afternoon. Warm (max 22°C on Mon night, min 20°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

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

Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
4
7
9
8
7
5
4
4
3
3
4
4
3
3
4
4
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
SSW
14
2.2
SSW
16
3.5
SSW
15
4.5
SSW
19
3.5
SSW
17
3.5
SSW
17
2.5
SSW
16
2.2
SSW
14
1.5
SW
14
1.3
S
12
1.1
S
12
1.5
SSE
11
1.2
SSW
16
1.4
SSW
14
1.3
SSW
14
1.2
SSW
20
1.7
SSW
17
2.1
SSW
16
1.8
SSW
15
Wave Graph
Metric surfscale
Energy kJ
1987
2441
5530
13462
7893
6300
3606
2082
902
485
330
531
688
763
624
1014
1657
2219
1337
Wind (km/h)
15
SE
10
SSE
15
SSE
10
E
5
SSE
0
SE
5
SE
10
S
0
W
5
E
5
N
0
S
0
WSW
5
NW
0
NW
5
SSW
5
W
5
WSW
0
E
Wind State
cross
cross
cross
cross-off
cross-on
glassy
glassy
cross-on
glassy
cross-off
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
High Tide
11:00PM0.50m
12:06PM0.53m
11:41PM0.55m
12:34PM0.56m
00:17AM0.59m
1:01PM0.58m
00:50AM0.60m
1:24PM0.59m
1:21AM0.59m
1:45PM0.58m
1:50AM0.57m
2:03PM0.56m
2:16AM0.52m
Low Tide
5:28AM0.04m
5:45PM0.18m
6:03AM0.01m
6:17PM0.15m
6:35AM0.01m
6:48PM0.12m
7:05AM0.02m
7:18PM0.10m
7:32AM0.05m
7:46PM0.10m
7:56AM0.09m
8:14PM0.10m
part cloud
part cloud
rain showers
rain showers
part cloud
rain showers
rain showers
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:20
6:20
6:18
6:18
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:10
6:10
6:12
6:12
6:12
6:12
 mm
2
1
1
1
Temp °C
22
22
21
21
21
21
21
22
22
22
22
21
21
23
22
21
23
22
22
Feels °C
21
22
20
21
22
22
23
21
23
22
22
22
22
24
24
22
23
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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