Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 3 pm 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
24.4°C
1.3° 

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 8 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 1AM (local time) - 13ft (4.0m), 19s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 1AM (local time) - 13ft (4.0m), 19s period, SSW swell with 12,911 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 1AM (local time) - 13ft (4.0m), 19s 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 Wednesday (Sep 09) at 1AM. The primary swell is predicted to be 4.0m and 19s 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 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 1.0m 7s period and expected on Thursday (Sep 10) at 7PM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Wed 9th Sep)13ft (4.0m) 19s
Best Surf 1AM (Wed 9th Sep)13ft (4.0m) 19s
Most Powerful 1AM (Wed 9th Sep)13ft (4.0m) 19s

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


The Lowdown

Alright folks, Rusty here. Let’s look at what’s shaping up for Black Rocks Jetty.

We’ve got a decent run of surf on the horizon, but it’s not all for the faint-hearted. The water is sitting at 76° and running a touch warmer than normal for this time of year, so you’ll be comfortable in a spring suit.

The first real action hits Tuesday afternoon, September 8th. It’s a bit of a raw one – a solid 12ft SSW swell, but it’s coming in with a 15-second period from the south-east and a cross-shore wind. The energy is massive (8583), but the conditions are marginal, with a bit of chop. Honestly, this is a big, powerful reef setup that’s only for the very experienced. The crowd factor is there too, so it’ll be busy.

The standout window is Wednesday, September 9th. The morning is the pick of the entire forecast. The swell holds at 12ft from the SSW, but the period stretches to a very long 17 seconds, and the wind goes glassy from the south-southwest. The energy is still huge (8315), and the description says exceptional for experts. This is a serious, heavy groundswell at a very consistent reef break. It’s going to be a game of patience for the paddle out, but the waves will be lined up and powerful. If you’ve got the skill, this is the session. The afternoon holds similar size and period with a glassy easterly wind, but the energy dials back a touch (6138).

Thursday the 10th sees the swell drop to a more manageable 7ft, still with a long 14-second period and glassy conditions in the morning. This is a big step down in power (2082), making it excellent for experienced surfers, not just the elite. The afternoon drops further to 7ft from the SSE with a 13-second period, and the wind goes completely calm. It’s still a solid, clean wave.

From Friday the 11th through to the 14th, the swell backs off into the 2ft to 6ft range. The wind stays mostly light and favourable, so the quality will be high for a smaller, more user-friendly wave. The energy is lower (538 to 1022), but it’s clean and consistent.

Another true standout is Sunday, September 13th. The morning session brings back a solid 6ft swell from the SSW with a very long 17-second period and glassy conditions. The energy jumps back up to 2110. The sets will be powerful and clean, with long waits between them. This is a rewarding session for the experienced surfer. The afternoon gets a bit of a cross-on breeze, so stick to the morning.

The week of the 15th to the 22nd is a mix of solid, clean surf and some funky winds. The 15th and 16th have some excellent glassy windows with 6ft to 7ft SSW swell and good energy (1980 to 2642). The 21st and 22nd offer a similar story with clean 6ft to 6ft surf.

Looking way out, Wednesday, September 23rd is a big one, but it’s a long way off. The forecast shows a massive 10ft SSW swell arriving with a very long 20-second period and glassy conditions in the afternoon. The energy is extreme (6944). If this holds, it will be a legendary day for experts at this reef. It’s a promise, not a certainty, but it has my attention.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue afternoon. Warm (max 22°C on Wed morning, min 20°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

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

Tue
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
8
9
9
7
5
4
4
4
3
3
3
3
3
4
4
2
4
3
1
2
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
15
4
SSW
19
3.5
SSW
17
3.5
SSW
17
2.5
SSW
16
2.2
SSW
14
2
SSE
13
1.5
S
12
1.1
S
12
0.7
SSW
18
1.2
SSW
16
1.4
SSW
14
1.3
SSW
14
1.2
SSW
19
1.8
SSW
17
2.1
SSW
16
1.8
SSW
14
1.7
SSW
14
1.4
SW
13
1.3
SSW
12
Wave Graph
Metric surfscale
Energy kJ
5530
12911
7893
6138
3606
2082
1380
649
330
318
688
763
624
1004
1792
2191
1389
1005
711
521
Wind (km/h)
15
SE
10
E
5
SSW
5
ENE
5
SSE
5
W
0
NW
0
E
5
SW
5
S
0
WNW
5
WNW
5
WSW
5
S
5
SW
10
S
5
SSW
5
S
15
SSE
15
SE
Wind State
cross
cross-off
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
cross-on
glassy
cross-on
cross-on
cross
High Tide
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
2:18PM0.53m
2:40AM0.47m
Low Tide
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
8:17AM0.14m
8:40PM0.12m
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:18
6:18
6:16
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
6:13
 mm
1
Temp °C
21
21
22
21
21
22
22
21
22
21
21
22
22
21
22
22
22
23
23
22
Feels °C
21
22
23
22
21
23
23
22
23
22
23
23
23
22
23
22
23
24
23
21
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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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