Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 9 pm 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
25.2°C
2.3° 

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 29 Aug 2026:

  • Best quality surf: Sunday 30 Aug, 4AM (local time) - 8ft (2.5m), 14s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Sunday 30 Aug, 4AM (local time) - 8ft (2.5m), 14s period, SSW swell with 2,634 kJ wave energy.
  • Next surfable swell (1★+): Sunday 30 Aug, 4AM (local time) - 8ft (2.5m), 14s 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 (Aug 30) at 4AM. The primary swell is predicted to be 2.5m and 14s 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 2.5m 14s and forecast to arrive on Sunday (Aug 30) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Thursday (Sep 03) at 7PM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 30th Aug)8ft (2.5m) 14s
Best Surf 4AM (Sun 30th Aug)8ft (2.5m) 14s
Most Powerful 4AM (Sun 30th Aug)8ft (2.5m) 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 proper look at what’s heading our way.

The opening salvos are a bit of a mixed bag. We kick off on Saturday afternoon (August 29) with a solid pulse of groundswell rolling in. The ocean is pumping with a massive 3932 combined swell energy. We’re looking at 10ft of SSW swell with a very long 15 second period. The water is sitting at 77°, which is 4° warmer than normal for this time of year – that’s notably warm. The wind is dead calm and the surface is glassy. This is absolutely serious; it’s a powerful, long-period groundswell and this break needs a south-westerly direction, which this swell nails. At 10ft, this is strictly for the experienced crew. The crowd factor here is listed as "sometimes", so you might get a bit of company, but with waves like these, it’s a price worth paying. This is a standout.

The swell does start winding down. Sunday morning has 8ft SSW with a 14 second period blowing 6 mph onshore from the SSW, making things a bit hairy. The afternoon cleans up with a light cross-shore breeze. By Monday, the swell drops to 4ft and 4ft with some glassy windows, but the energy is fading.

Tuesday September 1 and Wednesday are poor. Swell bottoms out to 1ft and 2ft with very weak combined energy in the 100s. There’s a gap of a few days with no genuine surfing here. We are looking at a three-day lull from Tuesday September 1 right through to Thursday September 3 where the waves are barely worth a paddle. You’d be better off doing a gear check.

Things start to get interesting again come Friday afternoon (September 4). The swell lifts a touch to 2ft with a 14 second period and clean cross-offshore winds from the NNW. The energy is still modest at 230, but it’s a step in the right direction.

The real second pulse arrives on Saturday September 5 through Sunday September 6. Saturday morning has 5ft of SW swell with a 14 second period, but with a light cross-onshore wind, it’s a bit ordinary. The real standout of this stretch hits Sunday afternoon (September 6). Dead calm, glassy conditions, and 5ft of SW swell with a 15 second period. The combined energy is a strong 1248. It’s big enough to be fun, and the wind is perfect. This is a beauty.

Then we get the big one for the experts. Monday morning September 7 is pumping: 7ft of SSW swell with a very long 16 second period and glassy winds. The energy is 1880. This is primo for the experienced surfer. Tuesday September 8 morning is similar: 8ft, glassy, and a 13 second period with 2587 energy. That’s big. The afternoon gets a little messy with a cross-onshore breeze.

Further out, the swell tries to stay alive. Thursday September 10 afternoon sees a lovely glassy window with 8ft of S swell (16 second period) and a massive 4273 combined energy. That’s another serious pulse for the experienced surfer.

By Friday September 11 morning, it’s at its peak again: 10ft SSW swell, 16 seconds, glassy, energy of 4430. That is the biggest and best of the lot for the second week. You’ll want your biggest board and your best wetsuit for this one. The crowd situation is "sometimes," but on a Friday morning, you might have a chance.

The weekend of September 12 and 13 settles down into clean but smaller waves, with 4ft to 3ft of S swell and glassy conditions. Good for a longboard, but nothing special compared to the week prior.

Overall, there are two true standouts here. The first is Saturday afternoon (August 29) – big, clean, powerful. The second is Friday morning (September 11) – even bigger, clean, and with the kind of energy that makes your heart race. Both are for experienced surfers only. Beginners should stay well clear of the 10ft days.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Tue afternoon, min 20°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Wed afternoon. Warm (max 24°C on Wed morning, min 22°C on Tue night). Wind will be generally light.

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
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
2
2
2
2
0
1
1
0
1
0
0
0
1
1
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SSW
14
2.3
SSW
14
2
SSW
13
1.6
SSW
13
1.3
S
12
1.2
S
12
1
S
12
0.8
S
11
0.7
S
11
0.6
S
10
0.4
SW
14
0.7
SE
10
0.5
SW
14
0.5
SW
13
0.6
SW
13
0.6
SW
12
0.5
SW
20
1.1
SW
18
1.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
2948
2048
1377
915
497
418
266
149
112
73
47
90
95
85
103
126
186
719
1239
Wind (km/h)
5
E
5
SW
10
SW
10
SSE
5
SW
5
N
5
S
5
NW
5
N
0
E
10
SW
5
NE
5
S
5
SW
5
NW
5
NNE
5
W
5
NW
5
W
Wind State
glassy
on
on
cross
glassy
glassy
glassy
cross
glassy
glassy
on
glassy
cross-on
on
cross
glassy
cross-on
glassy
cross-on
High Tide
1:40AM0.59m
2:08PM0.58m
2:11AM0.56m
2:33PM0.57m
2:44AM0.53m
3:00PM0.54m
3:22AM0.47m
3:30PM0.50m
4:10AM0.40m
4:07PM0.46m
5:46AM0.34m
5:11PM0.40m
Low Tide
7:56AM0.06m
8:11PM0.11m
8:22AM0.09m
8:43PM0.12m
8:49AM0.13m
9:19PM0.13m
9:17AM0.18m
10:04PM0.16m
9:47AM0.24m
11:16PM0.19m
10:26AM0.30m
1:58AM0.20m
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
rain showers
rain showers
clear
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:28
6:28
6:28
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:08
6:08
6:08
6:09
6:09
6:09
 mm
1
1
Temp °C
21
21
22
22
22
23
22
23
24
23
24
22
23
24
23
23
24
23
23
Feels °C
21
21
22
22
22
24
23
23
26
23
25
24
25
25
24
26
25
25
25
  • Map Icons:
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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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