Black Rocks Jetty Surf Break

Lat Long: 21.04° S 55.23° E

Black Rocks Jetty Surf Forecast and Surf Report

Issued: 9 am 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Black Rocks Jetty sea temperature is
24.5° 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 20 Jul 2026:

  • Best quality surf: Monday 20 Jul, 1PM (local time) - 7.5ft (2.3m), 14s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Monday 27 Jul, 10AM (local time) - 11ft (3.5m), 16s period, SSW swell with 6,832 kJ wave energy.
  • Next surfable swell (1★+): Monday 20 Jul, 1PM (local time) - 7.5ft (2.3m), 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 Monday (Jul 20) at 1PM. The primary swell is predicted to be 2.3m 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 3.5m 16s and forecast to arrive on Monday (Jul 27) 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 0.3m 9s period and expected on Sunday (Jul 26) at 1AM.

Wave TypeTime (+04) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Mon 20th Jul)7.5ft (2.3m) 14s
Best Surf 1PM (Mon 20th Jul)7.5ft (2.3m) 14s
Most Powerful10AM (Mon 27th Jul)11ft (3.5m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s get straight into it. We’ve got one spot on the radar for the next couple of weeks, and it’s a ripper of a wave when things line up.

This is a proper reef break, very consistent, built for advanced surfers. The water is sitting at 76°F, which is a touch warmer than usual for this time of year – not a drastic shift, but noticeably pleasant.

The opening play is Monday the 20th of July. We’re looking at a solid 7ft of swell from the SSW, with a period of 14 seconds. That’s a nice, long-period groundswell with proper energy (1987 combined energy). The wind is a light NNE cross-off at 6 mph, keeping things clean. This is an excellent session for experienced surfers. Monday afternoon turns glassy with a 8ft SSW swell – that’s a standout window. The wave energy is still high (1859), and that glassy wind is a major positive. You’ll be getting some beautiful, lined-up waves.

Tuesday the 21st keeps the good times rolling. Morning glass, 6ft of SSW swell at 12 seconds, and the energy is still very solid (1112). This is clean, powerful surf. The afternoon is also glassy, same size, staying excellent for the crew that knows what they’re doing.

Things back off a bit on Wednesday the 22nd. The swell drops to 5ft, wind shifts to a light cross-on, and the quality dips. It’s marginal. By Thursday the 23rd, the swell is down to 4ft and the wind gets messy, especially in the afternoon with a 12 mph cross-on. That’s a write-off.

Friday the 24th sees a pulse of cleaner, longer-period swell. The morning is glassy with 4ft of SW swell at 15 seconds. That long period means the sets will be spaced out, but the shape at this reef will be quality. Saturday the 25th also starts glassy with a 4ft SW swell – a nice, clean morning session.

Sunday the 26th is a mess. Rain showers, building wind, and a strong onshore that blows out the afternoon. The swell jumps to 5ft with a very long 20-second period, but the wind is just too strong at 16 mph. The combined energy is pumping (3891), but the quality is poor. This is a day to stay on the beach.

Now, here’s the big one. Monday the 27th of July. The swell jumps to 12ft from the SSW, with a 16-second period. The combined energy is massive (7236). This is a serious, powerful groundswell. The wind is a light cross-on, so it’s not completely blown out, but at this size, this is strictly for experts only. Paddling out will be a mission, and the reef will be heavy. Tuesday the 28th drops a bit but is still a solid 8ft on the afternoon, with strong energy (4279). Still an expert-only game.

The end of the month and into August looks good. Wednesday the 29th of July is a standout for the second week. Glassy morning, 7ft of S swell at 13 seconds, excellent conditions for experienced surfers. The energy is strong (2567). Thursday the 30th has a glassy morning with 5ft of SSE swell, very clean. Friday the 31st is smaller but glassy again.

The first weekend of August is a proper run. Saturday the 1st of August is glassy all day, with 6ft to 7ft of SW groundswell, energy in the 1800-2200 range. That’s a fantastic, clean swell for the experienced crew. Sunday the 2nd of August stays glassy in the morning with 6ft of SW swell, and the afternoon is clean at 5ft. That whole weekend is a winner.

The best of the whole forecast? The glassy Monday afternoon on the 20th of July, and the glassy Saturday on the 1st of August. Both are clean, powerful, and lined up.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Sat morning, min 20°C on Fri night). Wind will be generally light.

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
AM
PM
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
4
4
2
4
2
3
2
0
3
3
2
3
3
3
3
3
1
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.2
SSW
14
2.3
SSW
13
2.1
SSW
13
1.8
SSW
12
1.8
SSW
12
1.7
S
12
1.5
S
13
1.5
S
13
1.4
S
12
1.2
S
12
1.1
S
12
0.9
SSW
16
1.1
SW
15
1.1
SW
14
1.1
SW
14
1.1
SW
13
1.1
SW
13
1.2
SSW
13
0.6
SW
21
1.1
SW
20
3.5
SW
17
Wave Graph
Metric surfscale
Energy kJ
1969
1859
1362
986
916
898
737
734
600
400
325
436
503
536
478
437
437
472
351
979
6323
Wind (km/h)
5
N
0
NW
5
NE
0
N
0
NW
5
SE
5
SSW
15
S
5
SE
5
SE
15
SSE
5
NE
0
ENE
10
S
5
S
5
SSE
5
NNW
5
NE
15
NNW
15
SSW
15
SSW
Wind State
cross-off
glassy
off
glassy
glassy
cross
glassy
cross-on
cross-off
cross
cross-on
glassy
glassy
cross-on
glassy
glassy
cross-off
glassy
cross-off
cross-on
cross-on
High Tide
5:12PM0.43m
5:06AM0.37m
5:44PM0.41m
7:30AM0.32m
6:52PM0.39m
11:33AM0.34m
9:13PM0.38m
11:57AM0.37m
10:24PM0.40m
12:15PM0.39m
11:05PM0.43m
12:34PM0.42m
11:38PM0.46m
Low Tide
10:48AM0.22m
11:42PM0.27m
11:16AM0.27m
1:22AM0.27m
12:07PM0.31m
3:32AM0.24m
2:59PM0.32m
4:38AM0.20m
4:29PM0.30m
5:15AM0.15m
5:13PM0.27m
5:46AM0.11m
5:46PM0.24m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
6:54
6:54
6:52
6:52
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:54
5:55
5:55
5:57
5:57
5:57
5:58
 mm
1
Temp °C
23
22
22
24
23
22
23
23
22
22
22
22
22
22
21
23
22
21
23
21
20
Feels °C
24
24
24
26
25
23
24
23
24
23
20
22
23
22
22
23
22
22
22
20
18
  • 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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