Surf Forecasts:
The Reef (Culebra) surf forecast from 9 Aug 2026:
- Most powerful swell: Friday 14 Aug, 11AM (local time) - 8ft (2.4m), 8s period, E swell with 728 kJ wave energy.
Best Forecast Surf Conditions for The Reef (Culebra) this week:
The most powerful waves expected at The Reef (Culebra) in the next 16 days are 2.4m 8s and forecast to arrive on Friday (Aug 14) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Thursday (Aug 13) at 8AM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Fri 14th Aug) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for The Reef (Culebra) over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s be honest – this forecast for The Reef (Culebra) is a rough one. We’ve got a big stretch of nothing, and it’s going to test your patience. The first week is a bust. Don’t bother waxing up.
Through Sunday the 9th and into Monday, it’s all cross-shore wind and lumpy chop. Swell is around 5ft to 5ft from the east, but with a short period of 6 seconds, it’s just weak, messy windswell. The combined energy is weak to moderate, and the wind is a fresh 19 mph cross-shore. It’s ugly. That continues into Tuesday, with the swell dropping and the wind staying nasty.
Wednesday the 12th is flat – we’re talking 1.0ft swell with a combined energy of 14. Not worth a thought. Thursday the 13th sees a bump to 6ft, but the easterly wind is still fresh and cross, making a mess. The energy climbs to 269, but it’s still poor quality.
The weekend of the 14th and 15th brings the biggest swell of the run – 7ft to 8ft from the east with an 8-second period. The combined energy hits strong levels (742 and 677), but the wind is a strong breeze at 25 mph, cross-shore, creating messy cross-chop. That’s expert-only, and even then, it’s a battle. For most, this looks more like a kite-surfing day than a paddle session.
Then it drops off again. The only real hope comes on Tuesday the 18th. The morning shows a light southerly wind shifting offshore, with a clean 3ft east swell, period 10 seconds, and combined energy of 206. The forecast calls for “good surf conditions.” That’s the highlight. The wave will be a bit small, but that offshore wind and clean face will make it rideable. The Reef is consistent, so it’ll hold. The afternoon sees the wind pick up to 16 mph, still offshore, but the quality drops.
After that, it’s tiny, weak swells through the end of the month. Wednesday the 19th has a trace, but it’s barely worth a paddle. By the 20th onward, it’s flat and poor.
So, if you’re keen, the only window is the morning of Tuesday the 18th. The rest of this 16-day outlook is a long, quiet gap.
– Rusty
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 29°C on Sun morning, min 28°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Tue night. Warm (max 28°C on Tue night, min 27°C on Tue night). Mainly strong winds. | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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) | ENE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 5 | ENE 6 | ENE 6 | E 5 | NE 8 | NNE 9 | NNE 8 | E 6 | E 7 | E 7 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 126 | 193 | 156 | 175 | 148 | 120 | 47 | 52 | 55 | 62 | 11 | 8 | 7 | 259 | 329 | 493 | 728 | 699 | 699 |
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-off | cross-off | cross-off | cross | cross-off | cross | cross | cross | cross | cross |
High Tide | 3:32AM0.18m | 6:41PM0.41m | 4:54AM0.19m | 7:34PM0.43m | 6:13AM0.20m | 8:22PM0.43m | 7:24AM0.23m | 9:04PM0.42m | 8:30AM0.27m | 9:42PM0.41m | 9:32AM0.30m | 10:17PM0.37m | |||||||
Low Tide | 1:02AM0.17m | 10:41AM-0.06m | 1:51AM0.16m | 11:48AM-0.06m | 2:30AM0.15m | 12:51PM-0.05m | 3:07AM0.14m | 1:52PM-0.02m | 3:41AM0.12m | 2:50PM0.01m | 4:13AM0.11m | 3:47PM0.05m | 4:45AM0.09m | ||||||
 |  |  |  |  | |  | | |  | | | | | |  |  | | | |
 | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — |
 | 6:52 | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:49 | — |
mm | — | 1 | — | — | — | — | 3 | — | — | 4 | 1 | 1 | 2 | — | — | — | — | — | — |
Temp °C | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 27 | 29 | 29 | 28 | 27 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 26 | 27 | 27 | 25 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | SE 5 | NE 9 | NE 8 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 12 | NNE 12 | NNE 12 | NNE 11 |
| kJ | 19 | 20 | 12 | 21 | 21 | 20 | 19 | 18 | 7 | 12 | 11 | 8 | 7 | 6 | 6 | 15 | 14 | 26 | 25 |
Swell 2 Height (m) Direction Period (s) | NE 12 | E 12 | NNE 11 | — | — | — | SE 6 | ESE 8 | NE 9 | N 8 | N 7 | NE 8 | N 15 | N 14 | NE 13 | N 8 | — | — | NE 13 |
| kJ | 6 | 3 | 12 | — | — | — | 9 | 6 | 19 | 1 | 1 | 3 | 4 | 4 | 7 | 1 | — | — | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 10 | E 10 | E 9 | N 11 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 2 | 2 | 2 | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 5 | ENE 6 | ENE 6 | E 5 | E 5 | E 6 | E 6 | E 6 | E 7 | E 7 | E 8 | E 8 | E 8 |
| kJ | 126 | 193 | 156 | 175 | 148 | 120 | 47 | 52 | 55 | 62 | 97 | 77 | 139 | 259 | 329 | 493 | 728 | 699 | 699 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 455 | 671 | 853 | 98 | 371 | 270 | 79 | 878 | 871 | 74 | 193 | 871 | 139 | 193 | 200 | 196 | 878 | 878 | 520 |
Best forecast wave conditions in Puerto Rico | |||||||||||||||||||
Best forecast wave conditions in Puerto Rico | |||||||||||||||||||
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Information about the The Reef (Culebra) Surf forecast
The above surf forecast table for The Reef (Culebra) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Reef (Culebra) can be found by selecting the local surf guide option on the grey menu. Our The Reef (Culebra) 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 (The Reef (Culebra)) 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 The Reef (Culebra) 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.
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