Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 3 pm 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
24.4° 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 17 Jul 2026:

  • Best quality surf: Monday 20 Jul, 4AM (local time) - 4.5ft (1.4m), 16s period, SSW swell with glassy winds.
  • Most powerful swell: Monday 20 Jul, 1PM (local time) - 7.5ft (2.3m), 14s period, SSW swell with 1,973 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 10AM (local time) - 3ft (0.9m), 16s 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 Sunday (Jul 19) at 10AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.6m and 10s. 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 2.3m 14s and forecast to arrive on Monday (Jul 20) at 1PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Thursday (Jul 23) at 1AM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 19th Jul)3ft (0.9m) 16s
Best Surf 4AM (Mon 20th Jul)4.5ft (1.4m) 16s
Most Powerful 1PM (Mon 20th Jul)7.5ft (2.3m) 14s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s coming down the pipe for Black Rocks Jetty. It’s a bit of a slow start, but once this southern ocean gets cranking, it’s going to be a wild ride for the crew that knows what they’re doing.

We’re looking at a pretty quiet few days to kick things off. Friday the 17th and Saturday the 18th are a write-off, honestly. The swell is small and the wind is a messy cross-onshore, making for poor conditions. You’d be better off waxing your board at home. There’s a bit of a gap here until we see something worthwhile.

The first real glimmer of hope comes Sunday morning, the 19th. The wind goes glassy, and we’ve got a clean 3ft swell rolling in from the SW. It’s small, but it’s clean. The combined energy is moderate (496), and with that glassy surface, it’ll be a fun session for a longboard or a fish. The water temp is sitting at 76°, which is about average for this time of year, so no surprises there.

Then, Monday the 20th is where it starts to get interesting. The swell jumps up to 7ft in the morning and 8ft in the afternoon from the SSW, with a solid 13-14 second period. The energy is strong (1753-1859), and it’s glassy. This is where the reef comes into play. That’s a proper groundswell. For a reef break like this, that long period means the waves will have real shape and power, but it’s getting into expert territory. Beginners, stay on the beach.

Tuesday the 21st is still solid first thing, with 5ft and clean cross-offshore winds, but the afternoon turns into a bit of a mess with a cross-on breeze. The surf quality drops off after that until the end of the week.

Now, look ahead. The real standout is Sunday the 26th afternoon. We’ve got a 3ft swell, but the period is a massive 20 seconds. That’s a very long period groundswell. The combined energy is strong (1072). For a reef, this is a dream. Those waves will be lined up, with plenty of time between sets to paddle out. It’s glassy, too. This is a gem.

But the absolute king of this forecast is Wednesday the 29th. The morning session is hitting a solid 12ft from the SSW, with a period of 18 seconds. The combined energy is a massive 7068. That is exceptional, powerful surf. The wind is glassy. This is for experts only. If you’re not comfortable in big, heavy reef waves, this is a serious spectator sport. The afternoon gets a bit onshore, so the morning is the window.

The first of August sees another big pulse, with 12ft and glassy conditions, but it’s the same story: big, powerful, and for the experienced crew only.

So, to sum it up: the first few days are a wash. The best on offer for the average surfer is that Sunday the 26th afternoon session. But for the big-wave chargers, circle Wednesday the 29th morning. It’s a long way out, so don’t lock it in, but it looks like a proper event.

Stay safe out there.

Rusty

Short Range Forecast

Mostly dry. Warm (max 24°C on Fri afternoon, min 21°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Mon afternoon. Warm (max 23°C on Tue morning, min 21°C on Mon night). Wind will be generally light.

Fri
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
1
2
0
3
4
4
4
3
1
2
1
0
3
2
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
S
16
1.1
S
14
1
S
13
0.8
SSW
11
0.6
SW
16
0.9
SW
16
0.9
SW
15
1.1
SW
14
2.1
SSW
14
2.3
SSW
13
2
SSW
12
1.5
SSW
12
1.6
SSW
12
1.5
S
11
1.3
S
12
1.2
S
12
1.4
S
12
1.3
S
12
0.8
S
11
0.9
SW
15
Wave Graph
Metric surfscale
Energy kJ
590
501
334
167
214
411
360
475
1735
1859
1154
666
694
596
449
387
547
461
166
314
Wind (km/h)
20
SSW
15
S
10
SSW
15
SSW
10
SSE
5
SSW
10
SW
5
ENE
5
NNW
5
NNE
5
NE
5
NNW
10
W
10
SSE
10
SSE
15
SSE
5
ENE
5
SSW
5
S
5
E
Wind State
cross-on
cross-on
cross-on
on
cross-on
glassy
on
glassy
glassy
glassy
off
cross-off
cross-on
cross
cross-on
cross-on
glassy
on
glassy
glassy
High Tide
3:12AM0.53m
4:16PM0.48m
3:48AM0.48m
4:45PM0.46m
4:23AM0.42m
5:12PM0.43m
5:06AM0.37m
5:44PM0.41m
7:30AM0.32m
6:52PM0.39m
11:33AM0.34m
9:13PM0.38m
Low Tide
9:19PM0.21m
9:46AM0.10m
9:59PM0.23m
10:19AM0.16m
10:44PM0.25m
10:48AM0.22m
11:42PM0.27m
11:16AM0.27m
1:22AM0.27m
12:07PM0.31m
3:32AM0.24m
2:59PM0.32m
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
part cloud
rain showers
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
6:54
6:54
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:54
5:54
5:54
5:55
5:55
5:57
 mm
1
Temp °C
24
22
23
23
22
23
22
21
23
22
22
23
23
22
23
22
22
23
22
21
Feels °C
23
22
23
23
23
24
22
23
25
24
24
24
23
22
22
21
21
23
23
22
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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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