Surf Forecasts:
The Reef (Culebra) surf forecast from 15 Aug 2026:
- Best quality surf: Thursday 20 Aug, 2PM (local time) - 1.5ft (0.5m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Saturday 15 Aug, 8PM (local time) - 8ft (2.4m), 8s period, E swell with 759 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2PM (local time) - 1.5ft (0.5m), 8s period with E swell.
Best Forecast Surf Conditions for The Reef (Culebra) this week:
The surf forecast for The Reef (Culebra) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 2PM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.3m and 7s. Another secondary swell of 0.5m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Reef (Culebra) in the next 16 days are 2.4m 8s and forecast to arrive on Saturday (Aug 15) at 8PM. 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 17) at 5AM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Thu 20th Aug) | 1.5ft (0.5m) 8s |
| Best Surf | 2PM (Thu 20th Aug) | 1.5ft (0.5m) 8s |
| Most Powerful | 8PM (Sat 15th Aug) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for The Reef (Culebra) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s coming up for The Reef (Culebra). Straight up, I gotta be honest with you – this 16-day window is a tough one. We’ve got a real dry spell on our hands, so don’t go clearing your schedule just yet. The first recommendation is for Saturday the 15th, but it’s a no-go from the start.
Right out of the gate on Saturday morning, we’ve got a 8ft swell coming from the east, but the wind is howling at 25 mph straight out of the east too, putting it right in the cross position. The water temp is about average for this time of year, so nothing weird there, but the combined energy is a strong 636 – you can feel that power – but it’s all messy cross-chop. You’d be battling just to get a half-decent wave. That afternoon and into Sunday, the swell drops to 6ft, but the cross-wind stays stiff, keeping everything lumpy. The energy drops to 447 (still moderate), but the quality is gone. We’re looking at a real poor surf situation for the whole opening weekend.
Through the middle of next week, Monday into Tuesday (the 17th and 18th), the swell fades fast. We’re talking chest-high at best, dropping to 3ft by Tuesday morning, but the cross-wind from the east just won’t let up. The energy falls to a pretty weak 93 on Tuesday morning. It’s just not worth paddling out for. Wednesday and Thursday (the 19th and 20th) see the swell bottom out completely, with the wave energy hitting as low as 53. We get a brief moment on Thursday afternoon with a light cross-offshore breeze, but the swell is only 2ft – barely a ripple.
Now, there’s a stretch from about Saturday the 22nd through to the end of the month where things get a little more interesting, but we’re still not looking at anything to shout about. The swell tries to pick up on Monday the 24th with a 5ft swell from the ENE, and the energy jumps to 247. It’s still cross-shore wind, though. By Monday afternoon, we see a 6ft swell with a 10-second period making the energy 611, but the wind is still cross-shore, so it’s choppy. That’s a strong showing of energy, but it’s wasted. There’s a brief window on Tuesday the 25th afternoon where the wind goes cross-offshore, but the swell is only 5ft, and the energy is 282. It’s clean, but it’s not the kind of swell that will get you out of bed.
Looking further out to the 28th and 29th, the swell just disappears. We’re talking 1.0ft, 0.3ft – it’s flat. The energy on the 29th afternoon is a pitiful 6. There’s just nothing on the table here.
To be straight with you, there are zero standout days in this entire forecast. The wind and swell are constantly out of sync. The best look is probably that Monday afternoon the 24th, with a 6ft, 10-second swell from the ENE, but the cross-shore wind means it’ll be a messy affair. If you’re desperate, that’s your only shot, but don’t expect perfection. This is a real blank run for The Reef – it happens. Forecasts can change, but right now, save your energy.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Sat night. Warm (max 29°C on Sun night, min 27°C on Sat night). Winds decreasing (strong winds from the E on Sat night, moderate winds from the E by Mon afternoon). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu afternoon. Warm (max 28°C on Mon night, min 27°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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 7 | E 7 | E 8 | E 8 | E 8 | E 7 | E 5 | E 8 | ENE 8 | E 5 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 8 | ENE 8 | N 6 |
Wave Graph | |||||||||||||||||||
461 | 602 | 675 | 639 | 418 | 246 | 108 | 137 | 109 | 33 | 84 | 105 | 21 | 66 | 22 | 24 | 35 | 70 | 7 | |
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 | cross-on | cross-off | cross-off |
High Tide | 10:17PM0.37m | 10:30AM0.32m | 10:48PM0.34m | 11:28AM0.34m | 11:17PM0.30m | 12:24PM0.34m | 11:44PM0.27m | 1:22PM0.34m | 00:10AM0.24m | 2:22PM0.34m | 00:39AM0.22m | 3:26PM0.33m | 1:15AM0.20m | ||||||
Low Tide | 4:45AM0.09m | 4:45PM0.09m | 5:16AM0.08m | 5:44PM0.12m | 5:47AM0.06m | 6:47PM0.16m | 6:20AM0.05m | 7:55PM0.17m | 6:57AM0.04m | 9:13PM0.19m | 7:40AM0.03m | 10:35PM0.19m | |||||||
— | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
6:49 | — | 6:47 | — | — | 6:46 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | |
mm | — | — | — | 5 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | 3 | 7 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 28 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 28 | 28 | 30 | 29 | 29 | 30 | 30 | 29 | 31 | 33 | 29 |
Swell 1 Height (m) Direction Period (s) | NNE 11 | NE 12 | NE 11 | NNE 11 | NE 10 | NE 10 | NNE 10 | SSE 7 | SSE 6 | E 8 | NNE 9 | NNE 9 | E 8 | NNW 7 | E 8 | E 9 | E 8 | ENE 8 | N 6 |
25 | 34 | 31 | 47 | 28 | 26 | 20 | 29 | 26 | 33 | 9 | 8 | 21 | 10 | 22 | 24 | 35 | 70 | 7 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | S 9 | N 6 | ESE 9 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | S 8 | N 9 | N 8 | SSE 5 | NNW 8 | N 7 | N 7 | N 7 | E 13 |
— | — | — | 6 | 1 | 17 | 10 | 20 | 10 | 9 | 1 | 2 | 5 | 3 | 21 | 17 | 8 | 8 | 3 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SE 8 | NNE 10 | — | S 8 | NNE 9 | NE 9 | NE 9 | ESE 9 | SE 4 | N 9 | S 8 |
— | — | — | — | — | — | — | — | 3 | 9 | — | 1 | 8 | 3 | 3 | 8 | 1 | 1 | 1 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | E 7 | E 8 | E 8 | E 8 | E 7 | E 5 | E 8 | ENE 8 | E 5 | E 8 | E 8 | E 4 | E 8 | E 4 | ENE 4 | ENE 4 | SE 3 | E 4 |
461 | 602 | 675 | 639 | 418 | 246 | 108 | 137 | 109 | 30 | 84 | 105 | 19 | 66 | 15 | 11 | 10 | 3 | 37 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 569 | 487 | 817 | 763 | 200 | 270 | 487 | 105 | 270 | 68 | 105 | 270 | 79 | 193 | 371 | 268 | 77 | 39 | 68 |
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.











