Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 9 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
24.0°C
0.9° 

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 12 Sep 2026:

  • Best quality surf: Wednesday 16 Sep, 1AM (local time) - 6.5ft (2.0m), 16s period, SSW swell with glassy winds.
  • Most powerful swell: Wednesday 16 Sep, 7AM (local time) - 8ft (2.5m), 15s period, SSW swell with 3,441 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 4AM (local time) - 4.5ft (1.3m), 18s 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 Sunday (Sep 13) at 4AM. The primary swell is predicted to be 1.3m and 18s period with a secondary swell of 1.2m and 13s. 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 2.5m 15s and forecast to arrive on Wednesday (Sep 16) at 7AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 6s period and expected on Thursday (Sep 17) at 10PM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 13th Sep)4.5ft (1.3m) 18s
Best Surf 1AM (Wed 16th Sep)6.5ft (2.0m) 16s
Most Powerful 7AM (Wed 16th Sep)8ft (2.5m) 15s

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


The Lowdown

Alright, Rusty here, let's talk about what's coming up at Black Rocks Jetty. This is a reef setup, so it's one for the advanced crew. The water temp is sitting pretty much average for the time of year, nothing wild there.

We've got a bit of a slow start this morning, September 13th. There's some solid energy in the water—a very strong 1820 combined energy—with a 5ft SSW swell pushing through, but the wind is on it and the tide feels a bit off, so it's not firing on all cylinders. It'll be a bit of a struggle this morning. By the afternoon, a touch more size at 6ft from the same SSW direction, but the wind goes cross-on, so it's looking messy with that 1857 combined energy. Not the best way to kick things off.

Now, Monday morning, September 14th, is a real treat. The wind drops to glassy, pure glass, and the sea goes slick. We've got a 5ft SW groundswell at a 14-second period. The combined energy is still a solid 918, so it's got some push, but that glassy surface will make it look like a mirror. This is the standout of the early part of the week. It's a proper session for those who are willing to work for it on the reef.

The real highlight, though, is the Tuesday the 15th window. Tuesday morning is clean with a light cross-off breeze and a 5ft SW swell that's got an 18-second period. The combined energy is a whopping 2124—that's strong, powerful water. Those long-period lines will wrap in nicely, and the wind is perfect. Tuesday afternoon is even better: glassy flat calm with a 6ft SSW swell and a massive 2575 combined energy. This is the best on offer, no question. For experienced surfers, this is the session to circle.

We get a bit of a lull from Wednesday the 16th through the end of that week. Wednesday morning sees the swell jumping to 8ft from the SSW, but with onshore wind, it's going to be a beast. That's heavy-duty, expert-only territory. Wednesday afternoon cleans up to glassy with a 8ft SSW swell at 14 seconds, and the combined energy is still a very strong 2197. Good for the brave. Thursday and Friday drop off in size, with clean glassy conditions on Thursday and Friday mornings, but the swell gets smaller and the period drops. The energy is moderate—878 on Thursday morning, down to 248 on Friday morning. It's not a complete write-off, but it's small and weak.

We hit a real flat spell from Saturday the 19th through most of the following Tuesday the 22nd. Swell drops to under 3ft, with combined energy barely breaking 300 most of the time. It's mostly blown out or weak. There's a tiny window on Sunday afternoon the 20th where it goes glassy with a 3ft SW swell, but don't get your hopes up. It's a full four-day gap with nothing worthwhile.

Things start to build again later in the week. Wednesday the 23rd and Thursday the 24th are building back up, but the winds are mostly on or cross-on, so it's marginal. The real return to form comes on Thursday afternoon the 24th. It goes glassy flat calm, and the swell jumps to 4ft from the SSW with a 14-second period and a combined energy of 1062. That's moderate but clean. Then Friday morning, September 25th, is the true standout of the second week. We get a glassy morning with a 6ft SSW swell pumping in at a 16-second period, and the combined energy hits 1418. The water will be lined up and the wind will be off. That morning is the one to aim for.

We end the lookahead with some big stuff on Monday, September 28th. The forecast shows a glassy morning with an 8ft SSW swell at a 15-second period and a very strong combined energy of 2806. That is a serious, expert-only day. The waves will be powerful and thick. If you've got the skills, that's a day to be in the water.

So, to sum it up: the absolute standout is Tuesday the 15th, especially the afternoon glass-off. Your second-best bet is Friday morning, September 25th. The rest has some ok sessions, but those are your golden windows. Stay sharp.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Mostly dry. Warm (max 23°C on Fri morning, min 19°C on Tue night). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
3
3
4
3
0
2
4
4
5
3
4
3
3
3
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SW
19
1.6
SSW
17
1.9
SSW
16
1.7
SSW
14
1.6
SW
14
1.5
SSW
13
1.2
SSW
12
1.4
SW
18
1.7
SSW
17
2
SSW
16
2.5
SSW
15
2.3
SSW
14
2
SSW
14
1.6
S
13
1.3
S
12
1.2
S
12
1
S
11
0.6
SW
18
0.8
SW
16
Wave Graph
Metric surfscale
Energy kJ
738
1491
1857
1261
907
796
403
1263
1515
1928
2999
2197
1483
878
488
409
248
246
306
Wind (km/h)
5
NNE
5
SSW
5
S
5
SSE
5
S
15
SSE
10
SE
10
ESE
5
SE
5
E
10
SW
5
S
5
S
5
NW
5
W
5
SSE
5
WSW
5
W
5
WSW
Wind State
glassy
on
cross-on
glassy
glassy
cross-on
cross
cross-off
glassy
glassy
on
glassy
cross-on
glassy
glassy
glassy
glassy
glassy
glassy
High Tide
1:50AM0.57m
2:03PM0.56m
2:16AM0.52m
2:18PM0.53m
2:40AM0.47m
2:31PM0.50m
3:01AM0.42m
2:43PM0.47m
3:20AM0.36m
2:53PM0.44m
3:39AM0.31m
2:54PM0.40m
3:58AM0.26m
Low Tide
7:56AM0.09m
8:14PM0.10m
8:17AM0.14m
8:40PM0.12m
8:34AM0.18m
9:05PM0.14m
8:41AM0.22m
9:29PM0.18m
8:31AM0.25m
9:55PM0.21m
7:43AM0.27m
11:20PM0.25m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:16
6:15
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:13
6:13
6:13
6:13
6:13
 mm
Temp °C
22
23
22
21
23
23
21
21
22
21
21
21
21
22
22
21
23
22
22
Feels °C
24
23
23
22
23
22
21
21
23
21
20
21
22
23
23
22
24
24
24
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  • 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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