Surf Forecasts:
The Reef (Culebra) surf forecast from 18 Aug 2026:
- Most powerful swell: Friday 21 Aug, 5PM (local time) - 3.5ft (1.1m), 8s period, E swell with 153 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 1.1m 8s and forecast to arrive on Friday (Aug 21) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Monday (Aug 24) at 8AM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Fri 21st Aug) | 3.5ft (1.1m) 8s |
Table - best surf conditions forecast for The Reef (Culebra) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on offer for The Reef in Culebra for the next couple of weeks.
Gotta be straight with you – we're looking at a pretty lean run. The pattern starts right now and it's a slow one. There's a solid gap of about 8 days, from now through the 24th of August, where it's just not worth paddling out. The wind is mostly cross or cross-off, which is okay, but the swell is small, weak, and the period is short. The combined energy is just limping along, mostly under 100 (like 56), telling you there's no push in the water. You'll be sitting there bobbing around, not catching anything.
The whole outlook is focused on one spot, The Reef (Culebra). It's a very consistent reef break, exposed to the north, so it needs the right angle. The water temperature is about average for this time of year, nothing weird there.
The first real glimmer comes on the morning of Monday the 26th of August. The swell bumps up to 4ft from the ENE with a period of 9 seconds, and the combined energy climbs to 268 - that's moderate energy, we're starting to talk. The wind is light from the ENE, just a light cross-shore with small ripples. It's still a "marginal" call, but it's the best we've seen in a while.
If you can wait, the standout moment arrives on the afternoon of Tuesday the 27th of August. We've got 4ft from the E, period holding at 6 seconds, and the energy is 147. The wind swings to a cross-off from the ESE, cleaning up the face. The call is "surfable but very ordinary," but it's clean, and that's the best combo we get. It's not epic, but it's the window to go get wet.
After that, it trails off again. The end of the month and into the first of September sees the swell drop back to under 3ft, and the energy falls away. The wind does turn offshore for a bit on the afternoon of the 31st of August, with a clean 2ft swell from the ENE, but it's tiny. That's a longboard or a flat day for sure.
The combination of easterly wind and small east swell just doesn't light up this north-facing reef. The whole 16-day window is a struggle. It's one of those stretches where you're better off looking at the tides and the sky, because the ocean isn't giving us much.
Stay patient,
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Wed morning. Warm (max 28°C on Tue morning, min 27°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Fri night. Warm (max 28°C on Fri afternoon, min 27°C on Fri morning). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | E 8 | E 8 | E 4 | E 8 | N 8 | ENE 9 | E 8 | NNE 7 | NNE 7 | E 6 | E 8 | E 5 | E 5 | E 5 | E 5 | NNE 8 | NNE 8 | E 5 | NNE 7 | E 7 | ENE 5 |
Wave Graph | |||||||||||||||||||||
23 | 99 | 37 | 12 | 5 | 25 | 21 | 10 | 10 | 100 | 153 | 55 | 62 | 58 | 59 | 6 | 6 | 90 | 5 | 134 | 81 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross |
High Tide | 1:22PM0.34m | 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 | — | — | 6:03 | — | — | 6:05 | — | — | |
— | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:42 | — | |
mm | — | — | 2 | 3 | — | 2 | — | — | — | — | — | 2 | — | 1 | 2 | 2 | 1 | 2 | — | — | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 |
Feels °C | 28 | 29 | 29 | 29 | 30 | 29 | 27 | 28 | 27 | 27 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | E 8 | NNE 9 | N 7 | E 8 | ESE 8 | ENE 9 | E 8 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | ENE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | ESE 8 |
21 | 8 | 4 | 12 | 7 | 25 | 21 | 10 | 10 | 10 | 5 | 11 | 13 | 11 | 6 | 6 | 6 | 6 | 5 | 5 | 14 | |
Swell 2 Height (m) Direction Period (s) | NNE 9 | N 8 | NE 9 | ESE 8 | N 8 | NNE 8 | NNE 7 | E 13 | E 13 | SE 12 | NE 8 | E 12 | NNE 8 | S 8 | NE 9 | N 9 | E 11 | — | — | E 18 | E 16 |
9 | 1 | 3 | 6 | 5 | 20 | 17 | 3 | 3 | 6 | 3 | 3 | 13 | 1 | 3 | 2 | 2 | — | — | 7 | 43 | |
Swell 3 Height (m) Direction Period (s) | N 9 | S 8 | S 8 | NNE 9 | NNW 7 | ESE 8 | E 14 | E 13 | E 13 | N 11 | SE 12 | N 10 | E 11 | NNE 8 | S 8 | — | — | — | — | — | SE 8 |
2 | 1 | 1 | 7 | 4 | 6 | 4 | 3 | 3 | 2 | 6 | 2 | 3 | 6 | 1 | — | — | — | — | — | 3 | |
Wind waves Height (m) Direction Period (s) | E 4 | E 8 | E 4 | E 5 | E 5 | ESE 4 | ESE 5 | ESE 6 | E 6 | E 6 | E 8 | E 5 | E 5 | E 5 | E 5 | E 5 | E 6 | E 5 | E 6 | E 7 | ENE 5 |
23 | 99 | 37 | 37 | 29 | 14 | 60 | 72 | 77 | 100 | 153 | 55 | 62 | 58 | 59 | 74 | 78 | 90 | 127 | 134 | 81 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 270 | 270 | 98 | 105 | 79 | 68 | 193 | 871 | 123 | 796 | 270 | 414 | 270 | 105 | 98 | 79 | 796 | 98 | 79 | 454 | 165 |
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.











