Surf Forecasts:
The Reef (Culebra) surf forecast from 26 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 11AM (local time) - 3.5ft (1.1m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 5PM (local time) - 3.5ft (1.1m), 11s period, ENE swell with 314 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 11AM (local time) - 3.5ft (1.1m), 10s period with ENE 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 Tuesday (Sep 01) at 11AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.2m and 10s. 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 1.1m 11s and forecast to arrive on Monday (Aug 31) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Saturday (Aug 29) at 8AM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Tue 1st Sep) | 3.5ft (1.1m) 10s |
| Best Surf | 11AM (Tue 1st Sep) | 3.5ft (1.1m) 10s |
| Most Powerful | 5PM (Mon 31st Aug) | 3.5ft (1.1m) 11s |
Table - best surf conditions forecast for The Reef (Culebra) over the next 16 days.
The Lowdown
Alright, let's get into it. Rusty here, with a look at what's coming our way for The Reef in Culebra.
Right off the bat, I've got to be honest with you – this 16-day window is a tough one for surfers. We're looking at a long, dry spell to kick things off. From now until the very end of August, it's pretty much a write-off. There's just no energy in the water for most of that time, with the combined swell energy barely ticking over, mostly well under 200. The wind is mostly cross or cross-on, keeping things messy.
Things start to look a little more interesting as we move into September. The standout window is shaping up to be the morning of Tuesday, the 1st of September. We've got a clean little pulse from the ENE, pushing in at 4ft with a period of 10 seconds. The combined swell energy hits 222 – a nice moderate kick – and we've got clean, cross-off winds from the SE at just 9 mph. That's the kind of glassy morning that makes a reef setup like The Reef (Culebra) light up.
Now, a quick heads-up: the reef itself is pretty exposed to the north, and while this ENE swell gets some wrap, it's not the perfect angle. But with those clean conditions and intermediate-friendly size, it's easily the best bet in the whole forecast. The water temp is sitting at a very warm 85° with a small positive anomaly of 1°, so it's a touch warmer than average for this time of year—nothing crazy, but you won't need a spring suit, that's for sure.
After that little burst, the swell drops off again real quick. The following days through to the 9th of September are back to tiny, weak conditions. There's a little bump mid-afternoon on the 31st of August with a longer-period 4ft swell from the ENE, but the wind is cross-on and the energy is only moderate (355). It's surfable, but it's not going to be the clean, lined-up session you'd want. For the rest of the second week, we're basically looking at flat, choppy, or just too weak to bother.
So to wrap it up: hold out for that Tuesday morning on the 1st. It's your best shot. The rest? A whole lot of waiting and watching.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed night. Warm (max 28°C on Tue afternoon, min 27°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sat morning. Warm (max 28°C on Fri afternoon, min 28°C on Fri afternoon). Mainly fresh winds. | |||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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) | NNE 6 | ENE 9 | E 8 | ENE 8 | NE 14 | E 8 | E 8 | NE 12 | NE 12 | E 6 | NE 11 | E 6 | E 7 | E 6 | E 7 | ENE 7 | ENE 6 | ENE 7 | ENE 11 | ENE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 4 | 25 | 105 | 85 | 73 | 99 | 93 | 71 | 87 | 106 | 57 | 144 | 145 | 121 | 117 | 88 | 82 | 91 | 314 | 201 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-on | cross-on | cross-on |
High Tide | 7:42PM0.38m | 6:36AM0.23m | 8:14PM0.39m | 7:32AM0.26m | 8:43PM0.39m | 8:24AM0.29m | 9:11PM0.38m | 9:15AM0.31m | 9:37PM0.36m | 10:05AM0.34m | 10:04PM0.33m | 10:56AM0.36m | 10:31PM0.30m | |||||||
Low Tide | 2:28AM0.17m | 1:02PM0.05m | 2:54AM0.16m | 1:48PM0.06m | 3:18AM0.15m | 2:34PM0.08m | 3:40AM0.13m | 3:21PM0.10m | 4:02AM0.10m | 4:12PM0.12m | 4:26AM0.08m | 5:07PM0.15m | 4:54AM0.05m | |||||||
 |  | | | |  | |  | | | | | |  | | | | | | | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — |
mm | — | 1 | — | — | 2 | 1 | — | — | — | — | — | 2 | — | 1 | — | — | 2 | — | — | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 |
Feels °C | 30 | 29 | 29 | 29 | 28 | 28 | 29 | 28 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 29 | 30 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | NNE 6 | ENE 9 | NE 16 | SE 5 | NE 14 | NE 13 | NE 13 | NE 12 | NE 12 | NE 11 | NE 11 | NE 10 | NE 10 | NE 10 | NE 10 | SE 6 | NE 9 | E 12 | ENE 11 | ENE 10 |
| kJ | 4 | 25 | 10 | 10 | 73 | 87 | 83 | 71 | 87 | 60 | 57 | 38 | 35 | 33 | 33 | 25 | 13 | 46 | 314 | 201 |
Swell 2 Height (m) Direction Period (s) | N 11 | NNE 6 | NE 12 | NE 16 | NNE 11 | N 6 | S 8 | S 8 | NE 12 | — | N 15 | N 13 | N 13 | NE 12 | SSE 6 | NE 9 | ESE 8 | NE 9 | NE 9 | NNE 10 |
| kJ | 2 | 4 | 6 | 38 | 11 | 1 | 1 | 1 | 6 | — | 4 | 3 | 3 | 6 | 15 | 31 | 6 | 12 | 12 | 10 |
Swell 3 Height (m) Direction Period (s) | S 8 | NE 11 | NE 6 | NE 12 | S 8 | — | N 6 | — | — | — | — | — | — | — | NNE 12 | NNE 12 | NNE 11 | NNE 11 | NNE 10 | N 13 |
| kJ | 1 | 5 | 1 | 5 | 1 | — | 1 | — | — | — | — | — | — | — | 14 | 13 | 12 | 12 | 10 | 3 |
Wind waves Height (m) Direction Period (s) | E 5 | ESE 4 | E 8 | ENE 8 | E 5 | E 8 | E 8 | E 5 | E 5 | E 6 | E 6 | E 6 | E 7 | E 6 | E 7 | ENE 7 | ENE 6 | ENE 7 | NNE 5 | NNE 5 |
| kJ | 37 | 25 | 105 | 85 | 52 | 99 | 93 | 87 | 92 | 106 | 101 | 144 | 145 | 121 | 117 | 88 | 82 | 91 | 19 | 11 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 105 | 77 | 270 | 270 | 139 | 105 | 825 | 74 | 79 | 454 | 98 | 79 | 204 | 98 | 69 | 78 | 74 | 78 | 78 | 30 |
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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