Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 3 pm 27 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 27 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 4AM (local time) - 11ft (3.5m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 10AM (local time) - 13ft (4.0m), 16s period, SSW swell with 8,820 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 4AM (local time) - 11ft (3.5m), 16s 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 29) at 4AM. The primary swell is predicted to be 3.5m and 16s 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 4.0m 16s and forecast to arrive on Friday (Aug 28) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 7s period and expected on Monday (Aug 31) at 1PM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 29th Aug)11ft (3.5m) 16s
Best Surf 4AM (Sat 29th Aug)11ft (3.5m) 16s
Most Powerful10AM (Fri 28th Aug)13ft (4.0m) 16s

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 coming our way at Black Rocks Jetty. This is a reef break that’s very consistent and exposed to the south-west, so when there’s swell, it usually shows. We’ve got a classic run of events, but it’s not all plain sailing – there’s a bit of a wait for the top-shelf stuff.

We kick off Thursday the 27th of August with a solid 10ft south-south-west swell, but the wind is a cross-onshore 12 mph and the water’s a notably warm 77°, which is much warmer than normal for this time of year. Still, the 4914 combined energy is strong, but it’s messy – only one for the die-hards with a shortboard and a thick skin. Friday the 28th gets bigger, up to 13ft south-south-west, with that energy climbing to 9362, but it’s lumpy and cross-onshore. Honestly, that’s a kite-surfing day unless you’re a hellman. Saturday the 29th eases back to 12ft with a light cross-shore, but the period is a long 15 seconds, which can make a reef break a bit walled. It’s still marginal.

The standout window opens Sunday the 30th. The morning is pure glass – zero wind, 8ft south-south-west swell with a 14-second period and 2048 energy. The afternoon stays glassy at 7ft. This is clean, solid for experienced surfers, and the reef will be handling that long-period groundswell beautifully. It’s the best wave of the first week, no contest. Monday the 31st glassy again but smaller, 4ft from the south, 497 energy – nice for a cruiser session on a log but not the main event.

After that, we hit a dry spell. Tuesday the 1st of September and Wednesday the 2nd are tiny (3ft dropping to 1ft) with weak energy in the double digits – a gap of several days with nothing worth paddling for. Thursday the 3rd and Friday the 4th are similarly small and ordinary, around 2ft to 2ft.

Then, the real gold shows up on Saturday the 5th of September. Saturday morning is glassy with a 4ft south-west swell, but the period is a massive 18 seconds, hitting 1444 energy. That’s very long-period groundswell. It’s not huge, but that pulse on a reef means perfect, lined-up waves for a good surfer. The afternoon picks up to 6ft but gets a cross-onshore, so hit the dawn patrol.

Sunday the 6th and Monday the 7th stay in the 4ft to 3ft range, with glassy periods on Monday morning (3ft, 17 seconds, 776 energy) – clean but not as punchy. Tuesday the 8th of September is another standout morning: 5ft south-south-west, 13 seconds, 1058 energy, and glassy. The afternoon holds at 5ft from the south. Wednesday the 9th and Thursday the 10th continue that lovely pattern – 5ft in the mornings, glassy, with 1237 energy dropping to 840. This run from the 8th through the 10th is consistent, clean, and just solid. Friday the 11th is the last day in the window, and it finishes with the afternoon going glassy at 4ft south-west, 13 seconds, 657 energy – a nice wind-down.

Bottom line: you wait through the early blowout and the mid-week flat spell, but the reward at the end is sweet. The absolute top call is Sunday the 30th of August for that glassy 8ft south-west groundswell, followed closely by Tuesday the 8th of September for the clean, consistent 5ft. Don’t sleep on those.

Stay frothy,
Rusty

Short Range Forecast

Some drizzle, heaviest during Thu night. Warm (max 23°C on Thu afternoon, min 20°C on Fri night). Winds decreasing (fresh winds from the SSE on Thu night, calm by Sun morning).

Days 5-7 Weather Summary

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

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
6
0
0
4
4
4
4
4
4
4
2
1
2
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SSW
17
3.5
SSW
17
4
SSW
16
4
SSW
16
3.5
SSW
16
3.5
SSW
15
3
SSW
15
2.5
SSW
14
2.3
SSW
14
2.1
SSW
13
1.7
SSW
13
1.3
S
12
1.2
S
12
1
S
12
0.8
S
11
0.7
S
11
0.5
S
10
0.4
SSE
10
0.4
SW
14
0.5
SW
14
Wave Graph
Metric surfscale
Energy kJ
4873
7795
8820
8605
6831
4900
3932
2948
2048
1512
1026
497
418
266
149
112
51
33
73
96
Wind (km/h)
20
SSW
15
S
30
SSE
25
SSE
20
SSE
5
SE
10
SE
5
ESE
0
ESE
5
SW
5
E
0
NW
5
SW
5
ESE
5
WNW
10
SSW
0
SE
5
NW
10
SSW
5
S
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
glassy
glassy
cross-off
glassy
on
glassy
glassy
cross-on
glassy
cross
cross-on
cross-on
High Tide
00:43AM0.58m
1:22PM0.56m
1:11AM0.59m
1:44PM0.57m
1:40AM0.59m
2:08PM0.58m
2:11AM0.56m
2:33PM0.57m
2:44AM0.53m
3:00PM0.54m
3:22AM0.47m
3:30PM0.50m
Low Tide
6:48PM0.15m
7:07AM0.03m
7:14PM0.13m
7:31AM0.04m
7:42PM0.12m
7:56AM0.06m
8:11PM0.11m
8:22AM0.09m
8:43PM0.12m
8:49AM0.13m
9:19PM0.13m
9:17AM0.18m
10:04PM0.16m
clear
rain showers
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:31
6:30
6:28
6:28
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:08
6:08
6:08
6:08
6:09
 mm
1
Temp °C
23
22
23
22
21
21
21
20
22
22
21
23
23
22
24
24
22
24
23
23
Feels °C
22
22
19
18
19
21
20
20
23
22
20
24
23
23
25
24
24
25
24
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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