Surf Forecasts:
Black Rocks Jetty surf forecast from 28 Aug 2026:
- Best quality surf: Saturday 29 Aug, 10AM (local time) - 11ft (3.5m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 4PM (local time) - 13ft (4.0m), 16s period, SSW swell with 8,605 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 10AM (local time) - 11ft (3.5m), 15s 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 10AM. The primary swell is predicted to be 3.5m and 15s 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 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 7s period and expected on Monday (Aug 31) at 4PM.
| Wave Type | Time (+04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sat 29th Aug) | 11ft (3.5m) 15s |
| Best Surf | 10AM (Sat 29th Aug) | 11ft (3.5m) 15s |
| Most Powerful | 4PM (Fri 28th Aug) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Black Rocks Jetty over the next 16 days.
The Lowdown
Alright, let’s get into it for Black Rocks Jetty.
First thing – the water is sitting at 77°F right now, which is a lot warmer than usual for late August. That’s a bonus.
The real stuff starts this Saturday, August 29th. Saturday morning brings a solid 12ft SSW groundswell with a 15-second period and clean conditions thanks to a light east-southeast cross-off breeze. That’s a heap of energy – around 4900 (moderate to strong). This is a long-period groundswell, so the sets will be powerful, well-spaced, and drawn out. The reef setup at the jetty handles that direction well. It’s very consistent here, but it’s advanced-only at that size. Afternoon gets even better – wind goes glassy from the east, swell drops a touch to 10ft, and it’s as clean as you’ll see. That Saturday afternoon is the best of the whole run. Crowds can be an issue here sometimes, so plan accordingly.
Sunday the 30th still has size – 8ft SSW in the morning with a light south cross-on. The afternoon cleans right up with a light west-northwest glassy wind, swell at 7ft and a 13-second period. Still excellent for experienced surfers.
Monday the 31st offers 4ft south swell, 12-second period, glassy both morning and afternoon. It’s smaller, but clean and fun.
Then it goes quiet. From Tuesday, September 1st through Friday the 4th, the swell drops to ankle-to-waist high, some days with poor wind. Not worth the paddle.
Friday afternoon the 4th sees a weird spike in period – a 20-second groundswell, but only 2ft. Glassy, but tiny.
Next real pulse hits Saturday, September 5th. Morning is a bit bumpy with 6ft SW swell and a cross-on breeze, but by afternoon the wind drops glassy and the swell cleans up to 7ft SW, 16-second period. Another excellent session for advanced surfers.
Sunday the 6th keeps 7ft SSW swell rolling, glassy afternoon with 16-second period. Monday the 7th is excellent – 7ft SSW swell, glassy, 14-second period, with afternoon energy climbing to 2503.
Tuesday the 8th jumps to 10ft SSW, 18-second period, but winds are 12 mph from the south, making it choppy and cross-onshore. This is big, raw, and messy – more of a kite day. Only for the toughest experts.
Wednesday the 9th is the second-week gem. Morning is dead calm, glassy, 8ft SSW groundswell at 15 seconds, energy at 3931. Big, clean, and powerful. Excellent for experienced surfers. Afternoon gets a light cross-onshore but stays clean.
From Thursday the 10th through Saturday the 12th, it fades fast – 5ft down to 3ft, shorter periods, and increasing onshore wind. Quality drops off hard.
Bottom line: the absolute best windows are Saturday afternoon, August 29th, Sunday afternoon the 30th, Saturday afternoon September 5th, and Wednesday morning September 9th. If you can get out for one, make it Saturday the 29th afternoon – glassy, 10ft SSW, 15-second groundswell, clean and powerful. That’s the one to clear your schedule for.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Fri morning, min 20°C on Fri night). Winds decreasing (fresh winds from the SSE on Fri morning, calm by Sun night). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Mon morning, min 21°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 12 | S 12 | S 12 | S 11 | S 11 | S 10 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8820 | 8605 | 7163 | 4900 | 3932 | 2749 | 2106 | 1512 | 1026 | 497 | 418 | 266 | 149 | 112 | 73 | 33 | 73 | 96 | 109 | 108 | 120 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-off | glassy | glassy | cross-on | glassy | glassy | glassy | glassy | glassy | on | on | cross | glassy | cross-off | cross-on | glassy | glassy | glassy |
High Tide | 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 | 4:10AM0.40m | 4:07PM0.46m | ||||||||
Low Tide | 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 | 9:47AM0.24m | 11:16PM0.19m | ||||||||
 |  |  | | | | | |  | | | | | | | | | | | | | |
 | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — |
 | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 22 | 22 | 23 | 23 | 22 | 23 | 23 | 23 | 24 | 23 | 23 |
Feels °C | 18 | 18 | 17 | 21 | 21 | 21 | 22 | 22 | 23 | 23 | 22 | 22 | 23 | 24 | 23 | 24 | 24 | 24 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 12 | S 12 | S 12 | S 11 | S 11 | S 10 | NE 9 | NE 8 | NE 12 | NE 12 | NE 12 | SW 12 |
| kJ | 8820 | 8605 | 7163 | 4900 | 3932 | 2749 | 2106 | 1512 | 1026 | 497 | 418 | 266 | 149 | 112 | 73 | 46 | 35 | 110 | 86 | 87 | 120 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | NE 7 | NE 7 | NE 7 | NE 8 | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | SSE 10 | SW 14 | SW 14 | SW 13 | SW 13 | NE 6 |
| kJ | — | — | — | — | — | — | 16 | 37 | 42 | 36 | 51 | 40 | 40 | 51 | 42 | 33 | 73 | 96 | 109 | 108 | 12 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | ENE 11 | NE 11 | NE 11 | NE 11 | NE 11 | NE 11 | SW 14 | SSE 10 | SSW 15 | SSW 14 | SSW 12 | SSW 13 |
| kJ | — | — | — | — | — | — | — | — | — | 11 | 18 | 30 | 19 | 30 | 20 | 29 | 18 | 42 | 36 | 31 | 31 |
Wind waves Height (m) Direction Period (s) | S 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 501 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 3 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
Best forecast wave conditions in Réunion Island | |||||||||||||||||||||
Best forecast wave conditions in Reunion | |||||||||||||||||||||
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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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