Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 9 pm 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
24.8° C
1.7° 

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 31 Jul 2026:

  • Best quality surf: Saturday 1 Aug, 4AM (local time) - 5.5ft (1.7m), 15s period, SSW swell with glassy winds.
  • Most powerful swell: Saturday 1 Aug, 7AM (local time) - 5.5ft (1.7m), 15s period, SSW swell with 1,314 kJ wave energy.
  • Next surfable swell (1★+): Saturday 1 Aug, 4AM (local time) - 5.5ft (1.7m), 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 Saturday (Aug 01) at 4AM. The primary swell is predicted to be 1.7m and 15s period. 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 1.7m 15s and forecast to arrive on Saturday (Aug 01) at 7AM. 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 10s period and expected on Thursday (Aug 06) at 7AM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 1st Aug)5.5ft (1.7m) 15s
Best Surf 4AM (Sat 1st Aug)5.5ft (1.7m) 15s
Most Powerful 7AM (Sat 1st Aug)5.5ft (1.7m) 15s

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


The Lowdown

Alright folks, Rusty here. Let’s get into it.

We’ve got a solid run of winter swell on the way for Black Rocks Jetty, and it’s all about the timing. The first few days are the real deal for experienced surfers, with a proper groundswell and glassy conditions. The water temp is sitting about average for this time of year, so you’ll need a decent wetsuit.

The standout window kicks off Saturday morning, August 1st. We’re looking at a clean 6ft SSW groundswell with a period of 15 seconds, and the wind is dead glassy from the NE. The combined energy is strong (1314), and the waves will have serious push. This is a reef break, so it’s an advanced-only affair. The sets will be long and lined up, but that long period (15 seconds) means it’s going to hold up beautifully on the take-off. Sunday morning, August 2nd, is almost a carbon copy: 5ft SSW groundswell, 14 seconds, glassy WSW wind, and energy at 1084. Beautiful, clean conditions.

The best of the whole run, though, is shaping up for Tuesday morning, August 11th. It’s a couple of weeks out, so keep an eye on it, but the forecast is mouthwatering. Calm, glassy conditions with a 5ft SW groundswell, a very long 18-second period, and combined energy hitting 1724. That’s a powerful, long-period groundswell that will hump up nicely. Because it’s a reef, that long period is a massive plus – it’ll wall up perfectly. It’s a true standout for the experts.

Saturday morning, August 15th, also looks like a cracker for the experienced crew. Clean, calm conditions with a 5ft SSW groundswell, 14 seconds, and energy at 1254. The afternoon session on the 15th is even bigger, with 5ft SSW groundswell, 16 seconds, and energy at 1484. Both sessions are glassy.

There are a few smaller days in the middle of the run, like the 5th through the 7th, with waves around 2ft to 3ft – still rideable on a log, but nothing to get worked up about. The 8th has a very long 18-second period but only 2ft of swell, so it’s a bit of a tease. The 14th afternoon gets a bit choppy with a cross-onshore wind, so that’s a pass.

To wrap it up: the first weekend (August 1st and 2nd) and the mornings of August 11th and 15th are your best bets. Crowds are just a possibility at Black Rocks, so it shouldn’t be too hectic. This is a reef break for advanced surfers looking for a proper, powerful wave.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Warm (max 25°C on Sat morning, min 23°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Mon night. Warm (max 24°C on Tue morning, min 22°C on Wed night). Wind will be generally light.

Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
4
3
4
3
4
3
2
2
1
1
1
2
2
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)
1.6
SW
14
1.7
SSW
15
1.7
SSW
14
1.5
SSW
14
1.6
SSW
14
1.6
SSW
16
1.4
SW
14
1.2
SW
14
1.1
SW
13
0.8
SW
13
0.7
SW
13
0.8
S
13
0.7
S
12
0.7
SW
15
0.9
SW
15
0.9
SW
14
0.9
SW
14
0.9
SW
13
0.9
SW
13
Wave Graph
Metric surfscale
Energy kJ
1031
1314
1191
921
1072
1225
752
557
392
246
173
212
141
226
318
280
264
249
241
Wind (km/h)
5
SE
5
NE
5
SW
10
SSE
5
WSW
10
NW
5
SE
5
SW
5
SSW
5
NNE
10
SSW
10
W
10
S
5
SE
10
NNW
5
NE
5
NNW
5
SW
5
W
Wind State
glassy
glassy
glassy
cross
glassy
cross
glassy
glassy
on
glassy
on
cross-on
cross-on
glassy
cross-off
off
cross-off
glassy
glassy
High Tide
1:57AM0.56m
2:43PM0.53m
2:27AM0.55m
3:09PM0.53m
3:00AM0.53m
3:39PM0.52m
3:37AM0.48m
4:14PM0.50m
4:25AM0.43m
4:58PM0.47m
5:43AM0.37m
6:08PM0.43m
Low Tide
8:26AM0.06m
8:32PM0.17m
8:52AM0.08m
9:04PM0.18m
9:19AM0.12m
9:42PM0.19m
9:50AM0.16m
10:30PM0.20m
10:28AM0.20m
11:42PM0.22m
11:27AM0.26m
1:48AM0.21m
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:50
6:48
6:48
6:48
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:00
6:00
6:00
6:01
 mm
2
1
Temp °C
23
25
23
23
25
24
24
24
24
23
24
23
23
24
24
23
24
24
23
Feels °C
25
27
25
25
27
25
26
26
26
25
25
24
25
26
25
23
27
26
25
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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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