Surf Forecasts:
The Reef (Culebra) surf forecast from 18 Aug 2026:
- Most powerful swell: Monday 24 Aug, 11PM (local time) - 4.5ft (1.3m), 6s period, E swell with 143 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 1.3m 6s and forecast to arrive on Monday (Aug 24) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Monday (Aug 24) at 5AM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 24th Aug) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for The Reef (Culebra) over the next 16 days.
The Lowdown
Alright, folks. Rusty here. Let’s talk about what’s on the table for The Reef in Culebra. Don’t get too excited just yet – we’re looking at a long stretch of time where the waves are gonna be pretty average, and the wind is a constant problem. The first real surfable moment doesn’t show up until Thursday, 27 August, and even then, it’s nothing to write home about.
The pattern starts with a whole lot of nothing. From Tuesday 18 August right through to Wednesday 26 August, the surf is basically non-existent. We’re talking tiny, messy waves with cross-shore winds that are just killing any chance of a clean line. The only exception is a quick spike of moderate energy (124) on Friday 21 August morning, but it’s paired with a lumpy cross-chop, so you’d be fighting it. That’s a week of barely rideable slop.
Now, the first real chance for a wave comes on Thursday 27 August. The Reef (Culebra) finally sees a bit of life. The morning offers a gentle cross-shore wind with slight chop, but the afternoon is the better shout. The wind swings cross-offshore from the ESE at a gentle breeze, giving us clean conditions. The swell is small, about 3ft from the E with a 9-second period. The combined energy is moderate (135). The water is a warm 84°F, which is about average for the time of year. It’s not gonna be a classic, but it’s surfable and clean. For a spot that’s been dead for over a week, it’s a welcome sight.
Friday 28 August is the best of the bunch. The morning is clean again with a light ESE breeze, cross-offshore. The swell is 3ft from the ENE, with an 8-second period and moderate energy (105). It’s small, but the conditions are right. The reef will be working, and the waves will be clean. The crowds are listed as “sometimes”, so you might have a few others out, but it won’t be a circus.
The rest of the forecast is a real letdown. Saturday 29 August is clean but the swell drops off, and by Sunday 30 August, we’re back to tiny, weak waves. There’s a pulse of long-period groundswell (12 seconds) on 30 August, but it’s only 0.3ft, so it’s a total tease. The first week of September sees a bit more energy, like on Tuesday 1 September (270) and Wednesday 2 September (303), but the wind is cross-shore and messy, ruining the quality. The swell is around 3ft to 3ft, but it’s not gonna be the clean, peeling waves you want on a reef.
So, the standout is Friday 28 August. It’s not gonna be a big day, but the clean, cross-offshore wind and the consistent little pulses from the E to ENE will give you some fun, clean lines at The Reef. Get it while you can, because it’s a short window before the wind and the chop come back to spoil the party.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue night. Warm (max 28°C on Tue afternoon, min 27°C on Thu morning). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Mon morning. Warm (max 28°C on Fri afternoon, min 27°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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) | E 8 | E 4 | E 8 | E 8 | NNE 8 | E 8 | NNE 7 | NNE 7 | E 6 | E 6 | E 5 | E 5 | E 5 | ENE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | E 18 |
Wave Graph | ||||||||||||||||||||
103 | 36 | 11 | 12 | 20 | 21 | 10 | 10 | 112 | 106 | 71 | 64 | 41 | 13 | 13 | 6 | 6 | 5 | 5 | 6 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross-off | cross |
High Tide | 00:10AM0.24m | 2:22PM0.34m | 00:39AM0.22m | 3:26PM0.33m | 1:15AM0.20m | 4:31PM0.33m | 2:05AM0.20m | 5:32PM0.34m | 3:14AM0.20m | 6:23PM0.35m | 4:27AM0.20m | 7:05PM0.37m | ||||||||
Low Tide | 7:55PM0.17m | 6:57AM0.04m | 9:13PM0.19m | 7:40AM0.03m | 10:35PM0.19m | 8:32AM0.03m | 11:51PM0.19m | 9:30AM0.03m | 00:46AM0.18m | 10:29AM0.03m | 1:26AM0.18m | 11:25AM0.03m | 1:59AM0.18m | |||||||
— | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | |
6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:42 | — | |
mm | — | 1 | 2 | 1 | 1 | — | — | — | — | 1 | — | 1 | — | 3 | — | — | — | 3 | 1 | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 27 | 28 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 9 | N 7 | E 8 | E 8 | NNE 8 | E 8 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | NNE 8 | ENE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | NE 7 |
8 | 4 | 11 | 12 | 20 | 21 | 10 | 10 | 10 | 5 | 11 | 12 | 6 | 11 | 13 | 6 | 6 | 5 | 5 | 2 | |
Swell 2 Height (m) Direction Period (s) | N 8 | NE 9 | NNE 9 | ESE 8 | NW 6 | NNE 7 | E 13 | SE 13 | SE 12 | NE 8 | E 12 | E 12 | ESE 8 | NNE 8 | S 8 | SE 11 | — | — | — | E 18 |
1 | 3 | 7 | 7 | 1 | 18 | 3 | 7 | 6 | 3 | 3 | 3 | 6 | 13 | 1 | 4 | — | — | — | 6 | |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | ESE 9 | N 8 | S 8 | E 14 | E 13 | N 5 | N 11 | E 12 | N 10 | S 8 | NE 9 | S 8 | E 9 | E 11 | — | — | — | N 12 |
1 | 1 | 8 | 5 | 1 | 4 | 3 | 1 | 2 | 3 | 2 | 1 | 3 | 1 | 2 | 2 | — | — | — | 3 | |
Wind waves Height (m) Direction Period (s) | E 8 | E 4 | ESE 4 | ESE 4 | E 4 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 5 | E 5 | E 5 | E 5 | E 5 | E 6 | E 5 | E 6 | ESE 6 | E 6 |
103 | 36 | 27 | 20 | 36 | 65 | 82 | 91 | 112 | 106 | 71 | 64 | 41 | 66 | 74 | 72 | 80 | 110 | 112 | 110 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 270 | 82 | 268 | 79 | 82 | 193 | 270 | 344 | 796 | 796 | 98 | 863 | 105 | 487 | 878 | 796 | 98 | 79 | 105 | 83 |
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.











