
Surf Forecasts:
Black Rocks surf forecast from 15 Sep 2026:
- Most powerful swell: Wednesday 16 Sep, 1PM (local time) - 10ft (3.0m), 15s period, SSW swell with 4,456 kJ wave energy.
Best Forecast Surf Conditions for Black Rocks this week:
The most powerful waves expected at Black Rocks in the next 16 days are 3.0m 15s and forecast to arrive on Wednesday (Sep 16) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Sunday (Sep 20) at 10PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 16th Sep) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Black Rocks over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks. It’s a bit of a slow burner, but there’s a couple of windows that are going to make it all worth it.
The big news is that a serious, long-period groundswell is going to roll in from the SSW, and it brings some serious energy with it. The combined energy at times is strong, hitting a peak of over 5000 (5172). But here's the thing: we've got a rough start with strong cross-shore winds making a mess of things, so we have to wait for the right conditions to line up with this swell.
The first real standout comes in a bit over a week. On Thursday the 24th, Black Rocks is looking prime. The swell out of the S is 4 ft with a period of 17 seconds—that’s proper groundswell, but at that size it’s manageable and the long period will push through with real shape. The wind swings around light and offshore. Come Thursday afternoon, it goes glassy with an ENE breeze of just 3 mph and surf conditions are expected to be very good. That’s the one you circle on the calendar. Water temps are sitting around 76°F, which is a touch warmer than normal for this time of year, so you won't need the thick rubber.
Now, if you’re an experienced surfer wanting a bit more punch, hang in there. On Saturday the 26th, the swell builds to 6 ft from the SSW with a 12-second period, and we get a glassy morning with no wind at all. Conditions look excellent for experienced surfers then. The combined energy is solid at 1587. It's a bit bigger, but the clean, glassy surface will make it a special session. Be aware that afternoon the wind swings onshore a bit, so get on it early.
After that, it holds some decent size into Sunday the 27th with 7 ft to 7 ft SSW swell, but the wind turns cross and cross-onshore, so it gets a bit lumpy. Not the best for paddle surfing, but if you’re into kite surfing, that combo of big swell and side wind could be interesting.
Looking further out, there's another solid pulse on Tuesday the 29th. Morning sees 4 ft SSW with a 18-second period and a light ENE breeze—clean and very promising. The afternoon gets a little bigger at 6 ft with cleaner conditions again, so that’s another top pick for the experienced crew. And on Wednesday the 30th, the wind goes glassy again with a nice 6 ft SSW swell. A great way to wrap up the run.
Remember, Black Rocks is an inconsistent reef break, so it doesn’t fire every day, but when it lines up like this, it’s a proper wave. Just know that it can get crowded often, so get out there early.
A lot of the first week is pretty average with messy seas, so don’t get frustrated. The second half of the outlook is where the magic sits. Keep an eye on the 24th and the 26th as the true standouts.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Thu morning, min 20°C on Tue night). Winds decreasing (fresh winds from the SE on Tue morning, light winds from the E by Thu morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Fri morning, min 21°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 18 | SSW 17 | S 16 | SSW 16 | SSW 15 | SSW 14 | S 13 | S 12 | S 12 | S 12 | SSE 11 | S 11 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 14 |
Wave Graph | |||||||||||||||||||||
854 | 1383 | 3741 | 4234 | 3716 | 2376 | 1561 | 566 | 657 | 472 | 512 | 229 | 306 | 269 | 365 | 407 | 456 | 465 | 341 | 620 | 553 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross |
High Tide | 2:23PM0.63m | 2:48AM0.52m | 2:39PM0.59m | 3:09AM0.46m | 2:54PM0.54m | 3:28AM0.39m | 3:06PM0.49m | 3:45AM0.33m | 2:53PM0.44m | 12:04PM0.43m | 9:41PM0.43m | 11:29AM0.47m | 10:19PM0.49m | ||||||||
Low Tide | 8:54PM0.15m | 8:32AM0.23m | 9:18PM0.19m | 8:33AM0.27m | 9:44PM0.24m | 8:13AM0.30m | 10:29PM0.29m | 6:54AM0.32m | 4:10AM0.27m | 4:47PM0.38m | 4:29AM0.22m | 4:41PM0.33m | |||||||||
6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — |
Temp °C | 22 | 22 | 21 | 21 | 22 | 21 | 24 | 23 | 21 | 24 | 24 | 22 | 24 | 24 | 21 | 23 | 23 | 21 | 24 | 23 | 22 |
Feels °C | 15 | 16 | 15 | 15 | 17 | 16 | 22 | 20 | 19 | 21 | 22 | 19 | 21 | 21 | 20 | 19 | 19 | 19 | 20 | 19 | 20 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | S 10 | S 16 | SSW 16 | SSW 15 | SSW 14 | S 13 | S 12 | S 12 | S 12 | S 11 | S 11 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 14 |
854 | 1066 | 3741 | 4234 | 3716 | 2376 | 1561 | 566 | 657 | 472 | 354 | 229 | 306 | 269 | 365 | 407 | 456 | 465 | 341 | 620 | 553 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 17 | SSW 16 | S 14 | ENE 7 | ENE 7 | ENE 7 | SSW 13 | NE 10 | ENE 10 | NE 10 | SSW 17 | S 10 | S 10 | NE 8 | ENE 8 | ENE 8 | ENE 8 | SSW 16 | SSW 12 | S 10 |
289 | 1383 | 1555 | 928 | 36 | 37 | 37 | 421 | 77 | 68 | 84 | 195 | 96 | 65 | 28 | 23 | 23 | 39 | 240 | 158 | 47 | |
Swell 3 Height (m) Direction Period (s) | S 12 | SW 12 | — | ENE 7 | — | — | — | NE 7 | — | SSW 20 | SW 17 | ENE 10 | ENE 10 | ENE 8 | SSE 13 | SSE 8 | SSE 9 | — | SSE 7 | SSE 8 | SSE 7 |
67 | 23 | — | 20 | — | — | — | 44 | — | 37 | 77 | 67 | 65 | 44 | 17 | 23 | 15 | — | 35 | 71 | 26 | |
Wind waves Height (m) Direction Period (s) | S 9 | SSE 9 | ENE 7 | ESE 4 | — | — | — | — | — | ESE 3 | SSE 11 | ESE 3 | SE 4 | SE 4 | SSE 9 | SSE 6 | SSE 6 | SE 6 | ENE 8 | SE 8 | NE 9 |
663 | 1207 | 19 | 10 | — | — | — | — | — | 1 | 512 | 2 | 13 | 17 | 138 | 45 | 41 | 58 | 75 | 201 | 77 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 227 | 227 | 227 | 199 | 227 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 199 | 199 | 6 | 199 | 199 | 6 | 227 | 227 | 6 |
Best forecast wave conditions in Mauritius | |||||||||||||||||||||
Best forecast wave conditions in Mauritius | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Information about the Black Rocks Surf forecast
The above surf forecast table for Black Rocks 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 can be found by selecting the local surf guide option on the grey menu. Our Black Rocks 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) 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 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 is 12 km (7 miles) from the city of Vacoas. If you plan a holiday in Mauritius, look for hotels and other accommodation in Vacoas. Vacoas has rooms for a wide range of budgets as well as car hire and transport links.










