
Surf Forecasts:
Black Rocks surf forecast from 2 Sep 2026:
- Best quality surf: Saturday 5 Sep, 1AM (local time) - 5ft (1.6m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 10AM (local time) - 11ft (3.5m), 18s period, SSW swell with 8,305 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 1AM (local time) - 5ft (1.6m), 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 Saturday (Sep 05) at 1AM. The primary swell is predicted to be 1.6m and 16s period. 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 3.5m 18s and forecast to arrive on Wednesday (Sep 09) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Friday (Sep 04) at 4PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 5th Sep) | 5ft (1.6m) 16s |
| Best Surf | 1AM (Sat 5th Sep) | 5ft (1.6m) 16s |
| Most Powerful | 10AM (Wed 9th Sep) | 11ft (3.5m) 18s |
Table - best surf conditions forecast for Black Rocks over the next 16 days.
The Lowdown
Alright, let’s talk about what’s brewing. The first couple of days are pretty much a bust. We’ve got rain and a stiff cross-breeze out of the ESE at 15 mph making a mess of the surface at Black Rocks. The water’s sitting at 25°, which feels a touch warmer than usual for this time of year.
You’re looking at a few days where it’s not worth the effort. Thursday morning, the swell drops to a tiny 1 ft with a long period, but that fresh cross-shore wind will ruin any chance of a clean wave. Even Friday is a mix of rain and a moderate breeze, leaving things poor.
The first real chance to get out comes on Saturday the 5th. We’ve got a SSW swell pushing 6 ft in the morning with a period around 14 seconds. The wind goes light from the SE, so it’s cross-shore with just a few ripples. The combined wave energy is moderate at 1142. It’s not perfect—there’s a bit of cross-chop and the tide might be tricky—but it’s the best we’ve seen so far. That size is okay for intermediates, but beginners might find it a handful.
Sunday the 6th is a bit smaller, around 4 ft, with a light cross-onshore wind. It’s rideable, but nothing special.
Here’s the standout. Monday the 7th morning, the swell jumps to a solid 7 ft from the SSW with a long period of 15 seconds. That’s proper groundswell, and for a reef like Black Rocks, that long period will wrap in nicely. The combined energy is strong at 1785, and the wind is a gentle cross-onshore, so it stays fairly clean. This is the pick of the whole window. It’s getting up there for intermediates, so know your limits. Crowds are often here, so expect some company.
The afternoon of Monday the 7th gets bigger at 8 ft, but the wind swings more onshore and starts to chop things up, so aim for the morning.
Tuesday the 8th and Wednesday the 9th see the swell get proper chunky—12 ft by Wednesday with a very long period of 18 seconds. That’s expert territory, and the wind is a fresh cross-shore, so it’s going to be lumpy and challenging. The combined energy is very strong (8305), so this is for the hardcore crew only. Most of us will be watching from the beach.
After that, the swell backs off. Thursday the 10th morning has a cleaner 6 ft with a cross-off breeze, but the energy is still up there. The rest of the second week tails off into smaller, less consistent waves with moderate winds. By the 15th, we get a short-period 5 ft from the S that looks messy and blown out, and the 16th sees another big pulse of 12 ft but with fresh cross-shore winds again. That one is a couple of weeks out, so keep an eye on it but don’t count on it.
So, in short: get your skates on for Monday the 7th morning at Black Rocks. That’s the one. The long period SSW groundswell with light winds is your best bet for a clean, solid session.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed afternoon. Warm (max 24°C on Wed afternoon, min 21°C on Wed night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sat afternoon, min 21°C on Sat night). Winds increasing (calm on Sun afternoon, fresh winds from the SE by Tue morning). | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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) | SE 10 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SW 12 | SSW 18 | SSW 16 | SSW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph | ||||||||||||||||||||
204 | 42 | 73 | 74 | 57 | 51 | 553 | 1305 | 1142 | 822 | 599 | 444 | 388 | 1029 | 1785 | 2938 | 3448 | 3283 | 4618 | 5100 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross |
High Tide | 3:52AM0.50m | 3:55PM0.57m | 5:01AM0.41m | 4:50PM0.51m | 10:18AM0.41m | 7:48PM0.47m | 10:55AM0.48m | 9:51PM0.53m | 11:24AM0.55m | 10:47PM0.60m | 11:52AM0.62m | 11:29PM0.67m | ||||||||
Low Tide | 9:51PM0.17m | 9:34AM0.25m | 10:53PM0.22m | 10:05AM0.33m | 1:18AM0.25m | 1:38PM0.39m | 3:41AM0.19m | 4:07PM0.34m | 4:39AM0.11m | 4:55PM0.27m | 5:19AM0.06m | 5:32PM0.21m | ||||||||
— | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | |
6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | |
mm | 2 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 22 | 24 | 24 | 22 | 24 | 24 | 22 | 24 | 24 | 22 | 24 | 23 | 22 | 23 | 24 | 22 | 22 | 21 | 20 |
Feels °C | 21 | 19 | 20 | 20 | 20 | 23 | 21 | 21 | 24 | 24 | 22 | 25 | 24 | 24 | 23 | 22 | 19 | 17 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | NE 10 | ENE 10 | NE 10 | NE 10 | NE 10 | NE 9 | SSW 18 | SSW 16 | SSW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | SSW 15 | SSW 14 |
108 | 133 | 106 | 110 | 98 | 88 | 553 | 1305 | 1142 | 822 | 599 | 444 | 388 | 1029 | 1785 | 2938 | 3448 | 3283 | 4618 | 5100 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 8 | SSW 14 | SSW 14 | SW 12 | SW 12 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | E 10 | SSW 17 | SW 13 | ENE 10 | ENE 10 | ENE 10 | SW 24 | SW 22 | SW 20 |
75 | 34 | 73 | 74 | 55 | 51 | 108 | 110 | 81 | 81 | 50 | 50 | 325 | 87 | 20 | 20 | 20 | 666 | 1200 | 2840 | |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SW 14 | SW 13 | SSW 13 | SSE 6 | SSE 6 | — | — | NE 10 | NE 10 | SSW 18 | E 10 | ENE 10 | — | — | SW 26 | W 24 | — | — |
51 | 42 | 46 | 44 | 57 | 21 | 16 | — | — | 4 | 4 | 120 | 53 | 40 | — | — | 27 | 11 | — | — | |
Wind waves Height (m) Direction Period (s) | SE 10 | E 3 | SE 4 | SE 5 | SE 4 | ESE 3 | ESE 8 | — | — | — | ESE 10 | ESE 10 | ESE 10 | — | ESE 10 | S 3 | — | S 7 | — | — |
204 | 3 | 18 | 22 | 10 | 2 | 161 | — | — | — | 75 | 75 | 64 | — | 38 | 8 | — | 267 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 227 | 6 | 227 | 227 | 6 | 6 | 227 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 199 | 227 | 227 | 227 |
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.










