Surf Forecasts:
Black Rocks surf forecast from 8 Sep 2026:
- Best quality surf: Sunday 13 Sep, 7PM (local time) - 6.5ft (2.0m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 4AM (local time) - 15ft (4.5m), 19s period, SSW swell with 15,057 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 7PM (local time) - 6.5ft (2.0m), 16s period with SSW swell.
Best Forecast Surf Conditions for Black Rocks this week:
The surf forecast for Black Rocks over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 7PM. The primary swell is predicted to be 2.0m and 16s period with a secondary swell of 1.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Black Rocks in the next 16 days are 4.5m 19s and forecast to arrive on Wednesday (Sep 09) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 9s period and expected on Thursday (Sep 10) at 4PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 13th Sep) | 6.5ft (2.0m) 16s |
| Best Surf | 7PM (Sun 13th Sep) | 6.5ft (2.0m) 16s |
| Most Powerful | 4AM (Wed 9th Sep) | 15ft (4.5m) 19s |
Table - best surf conditions forecast for Black Rocks over the next 16 days.
The Lowdown
G’day, Rusty here, and I’ve been staring at the charts for Black Rocks. Honestly, it’s a bit of a waiting game. The first week or so is a write-off, but there’s a real light at the end of the tunnel if you can hold out.
Right now, and for the next several days, the wind is a mess. We’ve got strong cross-shore winds – 25 mph on Tuesday afternoon, 22 mph Wednesday morning – whipping up a lumpy cross-chop. The swell is actually big, with a solid 10 ft to 13 ft SSW groundswell with a very long period of 16 to 18 seconds, and the combined energy is cranking with a reading of 6615 on Tuesday, and a massive 10785 on Wednesday. But the quality is poor. It’s just a messy, blown-out situation. Not worth paddling out for. This messy cross-shore pattern sticks around through the weekend and into the following week. There’s a bit of swell, but the wind keeps it choppy and ugly. The best you’ll see is a marginal “maybe” on a few mornings, but nothing to get excited about.
A real shift happens on the morning of Wednesday the 16th. The wind backs off and turns cross-off from the East at 22 mph, and the wave face cleans right up. The swell is still a solid 8 ft from the SSW with a period of 14 seconds, and the combined energy is a strong 2523. This is a big, powerful wave, but with clean conditions. That being said, with that size and period, it’s going to be fast and heavy. This is expert-only territory over 8 ft. The crowd profile says Black Rocks is “often” busy, so expect a crew out for this one.
The real standout, the one you’ve been waiting for, is the morning of the 23rd of September. We’ve got a 7 ft SSW groundswell rolling in with a very long period of 21 seconds, and the combined energy is a solid 5011. The wind is a clean, light cross-off from the East at 12 mph. The water temperature is sitting at 76°F, which is a touch warmer than normal for this time of year. The waves will be clean, powerful, and with that long period, they’ll be lining up beautifully. It’s a long wait, but this is the session to target. Then the afternoon of the 23rd gets even better, with the swell jumping to 12 ft from the SSW with a 19-second period and 7885 energy. Again, this is big, powerful, and for experts only.
The setup looks more interesting for kite surfing than paddle surfing for most of the first week.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Wed morning, min 20°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 24°C on Sun morning, min 20°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 16 | SSW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 15 | SSE 15 | SSE 13 | S 12 | SSE 12 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3612 | 7343 | 10785 | 8498 | 4681 | 3099 | 1137 | 1363 | 584 | 761 | 817 | 1216 | 953 | 724 | 1966 | 1997 | 1825 | 1283 | 820 | 630 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 11:29PM0.67m | 12:19PM0.66m | 00:05AM0.71m | 12:45PM0.70m | 00:38AM0.73m | 1:08PM0.71m | 1:08AM0.72m | 1:30PM0.71m | 1:37AM0.69m | 1:49PM0.70m | 2:03AM0.64m | 2:07PM0.67m | 2:27AM0.59m | |||||||
Low Tide | 5:32PM0.21m | 5:54AM0.02m | 6:05PM0.16m | 6:25AM0.01m | 6:36PM0.12m | 6:54AM0.02m | 7:06PM0.10m | 7:20AM0.05m | 7:35PM0.09m | 7:44AM0.09m | 8:02PM0.09m | 8:05AM0.14m | 8:29PM0.11m | |||||||
 |  |  | |  | | | | | | | | | | | |  | | | | |
 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — |
 | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 21 | 21 | 22 | 22 | 20 | 22 | 22 | 21 | 22 | 22 | 21 | 23 | 22 | 21 | 24 | 23 | 22 | 23 | 23 | 21 |
Feels °C | 16 | 17 | 16 | 16 | 15 | 16 | 17 | 17 | 18 | 18 | 19 | 23 | 22 | 20 | 23 | 22 | 22 | 22 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSE 13 | S 12 | S 12 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 13 |
| kJ | 3612 | 7343 | 10785 | 8498 | 4681 | 3099 | 1080 | 929 | 584 | 546 | 817 | 1216 | 953 | 724 | 1966 | 1997 | 1825 | 1283 | 820 | 630 |
Swell 2 Height (m) Direction Period (s) | SW 22 | SW 20 | — | — | — | ENE 10 | SSE 15 | SW 14 | SW 13 | SW 13 | S 12 | ENE 10 | NE 8 | SSW 20 | SSW 12 | SSW 12 | — | — | NE 9 | SSW 20 |
| kJ | 2438 | 3676 | — | — | — | 65 | 1137 | 731 | 352 | 205 | 376 | 64 | 33 | 615 | 558 | 432 | — | — | 19 | 223 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 16 | ENE 10 | ENE 10 | ENE 10 | S 18 | SW 13 | SSE 11 | SSW 22 | NE 8 | — | — | — | — | S 22 | NE 8 |
| kJ | — | — | — | — | — | 81 | 88 | 86 | 92 | 232 | 136 | 40 | 47 | 30 | — | — | — | — | 9 | 14 |
Wind waves Height (m) Direction Period (s) | S 8 | — | — | — | ENE 10 | — | SE 9 | SSE 13 | ESE 9 | SSE 12 | — | — | — | — | — | — | — | — | S 4 | S 4 |
| kJ | 565 | — | — | — | 54 | — | 330 | 1363 | 88 | 761 | — | — | — | — | — | — | — | — | 9 | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 227 | 227 | 227 | 227 | 227 | 227 | 227 | 199 | 199 | 199 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 6 | 20 | 20 |
Best forecast wave conditions in Mauritius | ||||||||||||||||||||
Best forecast wave conditions in Mauritius | ||||||||||||||||||||
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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.
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