Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 3 pm 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
24.2°C
1.1° 

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 14 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 4PM (local time) - 5.5ft (1.7m), 17s period, SSW swell with glassy winds.
  • Most powerful swell: Wednesday 16 Sep, 10AM (local time) - 8ft (2.5m), 15s period, SSW swell with 3,221 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 10PM (local time) - 3.5ft (1.1m), 13s 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 Monday (Sep 14) at 10PM. The primary swell is predicted to be 2.0m and 7s period with a secondary swell of 1.4m and 7s. Another secondary swell of 1.1m and 13s is also forecast. 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 2.5m 15s and forecast to arrive on Wednesday (Sep 16) at 10AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Monday (Sep 21) at 10PM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+)10PM (Mon 14th Sep)3.5ft (1.1m) 13s
Best Surf 4PM (Tue 15th Sep)5.5ft (1.7m) 17s
Most Powerful10AM (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 on the table for our local zone.

First up, we've got a fun run of surf coming our way, but it starts off a little uncertain on Monday the 14th. The water is sitting at 76°, which is a touch warmer than what we'd normally expect for this time of year - nothing crazy, just a little bonus warmth.

Monday afternoon is a bit of a washout for a surf at Black Rocks Jetty. There's a 5ft SW swell, but a cross breeze from the SSE is messing with the surface and the whole thing feels marginal. The combined swell energy is sitting at 765, which is moderate, but not worth paddling out for right now.

The real action kicks off on Tuesday the 15th. The morning is looking clean with a 5ft SW swell wrapping in from 18 seconds - that's proper groundswell. The wind is light cross-off from the east, keeping things tidy. Then Tuesday afternoon is the standout: the wind drops to glass, the swell jumps slightly to 6ft from the SSW, and the period is a healthy 17 seconds. The combined energy is a solid 3072. This is going to be smooth, clean, and powerful on the reef. If you're an experienced surfer, this is your window.

Wednesday the 16th keeps the quality high. Morning sees 8ft SSW swell with a 15-second period and glassy conditions - that's expert territory, too big for beginners. The combined energy is massive at 3221. The afternoon drops a touch to 8ft, but still glassy with a 14-second period. Beautiful waves, but definitely for the experienced crew.

Thursday the 17th mornings sees things drop a notch to 5ft from the south, glassy calm, with a 13-second period. Very nice morning session. The afternoon takes a hit as the wind goes cross-on from the south, making it messy and marginal.

From Friday the 18th through Sunday the 21st, we're in a lull. Swell sizes drop to 3ft and below. The conditions are often glassy, but the wave energy is weak, with combined energy numbers under 700. These days are better for a longboard or a rest day. The crowds are noted as "sometimes" at this reef, so it's not a total secret spot, but on these small days it'll be quiet.

Monday the 21st shows a little pulse with a 4ft SSW swell, 16-second period, and glassy offshore winds in the morning. Worth a look if you're keen.

Tuesday the 22nd and Wednesday the 23rd see more small, clean swell in the 3ft to 4ft range, with good winds and glassy or clean conditions. The combined energy is moderate. These are solid days for a cruiser session.

Thursday the 24th morning looks promising again with a 3ft SSW swell but an 18-second period - very long period groundswell. That'll wrap nicely into the reef, with glassy conditions. Combined energy is 747. Should be some quality lines.

Now, looking further ahead, Friday the 25th gets a bit of size back - 6ft to 7ft from the SW, but the wind turns onshore and cross-onshore, making the reports look marginal and choppy. Not worth the paddle.

But then Saturday the 26th and Sunday the 27th are looking like another real highlight. Saturday morning has 6ft SSW swell with a 12-second period and glassy conditions - combined energy of 1669. Saturday afternoon bumps the period up to 16 seconds with 6ft energy at 2217 - excellent, clean conditions for experienced surfers. Sunday morning is the biggest of the run: 7ft from the SSW, 14 seconds, glassy - combined energy of 1978. That's proper, solid surf. The crowd factor is "sometimes," so expect company at a spot this good.

After that, Monday the 28th and Tuesday the 29th trail off again into smaller, clean but weaker swells with the occasional cross-on wind.

Overall, the standout windows are Tuesday afternoon the 15th through Wednesday the 16th, and then Saturday the 26th to Sunday the 27th. Both offer good size, long-period groundswell, and glassy to clean winds at the reef. Black Rocks Jetty is an exposed reef, so it needs that SW to SSW swell, and it's getting it. The long period swell will really stand up and offer some proper waves, but on the biggest days (over 8ft), it's for experts only.

Crowds are a possibility here, but not a guarantee - it's not a total secret spot.

Rusty out.

Short Range Forecast

Mostly dry. Warm (max 23°C on Mon afternoon, min 20°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Sat afternoon. Warm (max 23°C on Fri morning, min 21°C on Thu night). Wind will be generally light.

Mon
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
4
5
5
5
4
4
3
1
2
2
2
3
2
2
2
3
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SW
13
2
SSE
8
1.4
SW
18
1.7
SSW
17
2.3
S
15
2.5
SSW
15
2.4
SSW
14
2.1
SSW
14
1.6
S
13
1.3
S
12
1.2
S
12
1
S
11
0.9
S
11
0.8
SW
16
0.8
SW
15
0.9
SW
15
1.1
SW
14
1.2
SW
14
1.2
SW
14
1.1
SW
13
Wave Graph
Metric surfscale
Energy kJ
711
477
1263
1533
2446
3221
2350
1587
878
488
418
257
189
306
276
365
466
581
540
437
Wind (km/h)
15
SSE
10
SSE
10
E
5
SW
5
SSE
5
NW
5
ENE
5
N
0
W
10
S
0
NE
5
WNW
5
SSW
5
NNE
5
W
5
S
0
SW
5
WNW
5
SE
0
WNW
Wind State
cross
cross-on
cross-off
glassy
glassy
glassy
glassy
glassy
glassy
cross-on
glassy
glassy
glassy
off
glassy
glassy
glassy
glassy
glassy
glassy
High Tide
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
1:28PM0.37m
11:59AM0.38m
10:09PM0.36m
Low Tide
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
5:36AM0.26m
4:17AM0.22m
5:07PM0.31m
part cloud
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clear
part cloud
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clear
part cloud
rain showers
rain showers
rain showers
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:15
6:13
6:13
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:13
6:13
6:13
6:13
6:13
6:14
6:14
 mm
1
1
1
1
Temp °C
23
22
22
21
21
21
21
21
22
22
22
23
22
22
23
23
22
22
22
22
Feels °C
22
22
22
21
22
21
22
22
23
22
23
24
23
23
25
25
24
24
23
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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