Surf Forecasts:
The Reef (Culebra) surf forecast from 6 Sep 2026:
- Most powerful swell: Thursday 10 Sep, 8PM (local time) - 5ft (1.5m), 8s period, E swell with 266 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 1.5m 8s and forecast to arrive on Thursday (Sep 10) 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 1.5m 6s period and expected on Wednesday (Sep 09) at 8AM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Thu 10th Sep) | 5ft (1.5m) 8s |
Table - best surf conditions forecast for The Reef (Culebra) over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s be straight—this is a rough 16-day stretch for The Reef in Culebra. Don’t get your hopes up.
The whole period is mostly flat, with weak swell and wind that won’t cooperate. The best pulse shows up Wednesday the 9th and Thursday the 10th, when the combined energy gets into moderate territory (233 to 291), but it’s short-period (6 to 7 seconds) and from the east, not the north this reef really wants. Swell runs 4.9 to 5.2 ft, but it’s messy and lumpy with a fresh cross or cross-off breeze at 18 to 22 mph. It’s a battle, not a session.
Water temp is 85°F—right on average for the season.
After that, it’s all downhill. From the 11th onward, swell drops below 1.6 ft, with energy barely reaching triple digits. Wind stays moderate and mostly cross-off, but there’s no power. Late in the window, period stretches out (9 to 12 seconds) but with height at just 0.6 ft to 1 ft, it’s dead flat. This break is consistent, but the ocean is taking a nap. A blank run like this isn’t unusual for the area.
No standouts. If you’re desperate, maybe paddle out the afternoon of the 10th, but it’s more frustration than fun. Save your energy.
Short Range ForecastModerate rain (total 13mm), heaviest on Sun night. Warm (max 29°C on Sun afternoon, min 28°C on Sun night). Mainly fresh winds. | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Thu morning. Warm (max 29°C on Wed afternoon, min 28°C on Wed night). Mainly fresh winds. | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 7 | E 8 | E 8 | NE 11 | NE 11 | NE 10 | NE 12 | NNE 11 | NE 11 | E 6 | E 6 | E 7 | E 7 | E 8 | E 8 | E 7 | ENE 8 | E 8 | E 9 | ENE 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 69 | 74 | 55 | 43 | 55 | 52 | 36 | 47 | 31 | 202 | 191 | 250 | 239 | 247 | 34 | 110 | 20 | 32 | 24 | 31 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross |
High Tide | 5:21PM0.41m | 3:50AM0.22m | 6:18PM0.42m | 5:17AM0.24m | 7:06PM0.42m | 6:31AM0.28m | 7:49PM0.41m | 7:36AM0.32m | 8:26PM0.39m | 8:34AM0.36m | 9:00PM0.37m | 9:27AM0.39m | 9:31PM0.34m | |||||||
Low Tide | 00:31AM0.18m | 10:39AM0.01m | 1:10AM0.17m | 11:50AM0.03m | 1:44AM0.16m | 12:57PM0.05m | 2:17AM0.14m | 1:58PM0.07m | 2:48AM0.12m | 2:56PM0.09m | 3:18AM0.10m | 3:53PM0.12m | 3:47AM0.09m | |||||||
 |  | | |  | | | | | | | | | |  | |  | | |  | |
 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — |
mm | 1 | 3 | 1 | 1 | — | 1 | 1 | 2 | 3 | 1 | 3 | 4 | 3 | 2 | — | — | — | — | 1 | 1 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 28 |
Feels °C | 32 | 31 | 30 | 30 | 30 | 27 | 29 | 28 | 27 | 29 | 27 | 26 | 29 | 28 | 29 | 28 | 27 | 28 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | E 7 | NNE 9 | NE 12 | ENE 7 | NE 11 | NE 10 | NE 10 | NNE 11 | NE 11 | NE 11 | NE 11 | NNE 9 | N 10 | N 8 | E 8 | NNE 8 | ENE 8 | SE 6 | SE 6 | SE 6 |
| kJ | 69 | 8 | 22 | 43 | 55 | 52 | 24 | 47 | 31 | 30 | 19 | 29 | 48 | 23 | 34 | 24 | 20 | 22 | 19 | 9 |
Swell 2 Height (m) Direction Period (s) | N 8 | NE 14 | NNE 8 | NE 11 | N 9 | N 8 | NE 12 | N 7 | N 7 | N 7 | N 10 | N 6 | NE 10 | NE 10 | NNE 9 | ESE 8 | N 8 | E 8 | E 9 | NNE 9 |
| kJ | 1 | 7 | 6 | 30 | 1 | 5 | 36 | 4 | 4 | 1 | 7 | 1 | 4 | 4 | 25 | 7 | 11 | 32 | 24 | 9 |
Swell 3 Height (m) Direction Period (s) | S 8 | N 11 | S 8 | NNE 8 | S 8 | — | N 8 | — | — | — | N 6 | — | — | SE 7 | — | N 12 | ESE 8 | N 8 | N 8 | N 7 |
| kJ | 1 | 2 | 1 | 13 | 1 | — | 4 | — | — | — | 1 | — | — | 2 | — | 3 | 7 | 10 | 10 | 4 |
Wind waves Height (m) Direction Period (s) | SE 4 | E 8 | E 8 | SE 4 | ESE 7 | ESE 5 | ESE 6 | E 5 | E 6 | E 6 | E 6 | E 7 | E 7 | E 8 | ESE 5 | E 7 | E 5 | ENE 4 | ENE 4 | ENE 4 |
| kJ | 4 | 74 | 55 | 9 | 93 | 98 | 108 | 94 | 160 | 202 | 191 | 250 | 239 | 247 | 87 | 110 | 57 | 18 | 16 | 31 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 105 | 68 | 193 | 79 | 68 | 878 | 878 | 98 | 1191 | 878 | 414 | 79 | 79 | 98 | 79 | 79 | 79 | 193 | 796 | 422 |
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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