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Cupecoy surfForecast / Saint Martin / Netherlands Antilles
12 Day Weather and Surf, issued 1 pm Monday 13 Oct 2025 AST
Best Forecast Surf Conditions for Cupecoy this week:
The surf forecast for Cupecoy over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Oct 18) at 2PM. The primary swell is predicted to be 1.1m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cupecoy in the next 12 days are 1.8m 14s and forecast to arrive on Monday (Oct 20) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 7s period and expected on Monday (Oct 13) at 8PM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sat 18th Oct) | 3.5ft (1.1m) 10s |
| Best Surf | 2PM (Sat 18th Oct) | 3.5ft (1.1m) 10s |
| Most Powerful | 8AM (Mon 20th Oct) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for Cupecoy over the next 12 days.
Short Range Forecast Moderate rain (total 10mm), heaviest on Mon afternoon. Warm (max 28°C on Mon afternoon, min 27°C on Mon afternoon). Mainly fresh winds. | Days 3-6 Weather Summary Moderate rain (total 19mm), heaviest on Thu afternoon. Warm (max 29°C on Fri afternoon, min 28°C on Thu afternoon). Winds decreasing (fresh winds from the SSW on Thu afternoon, calm by Sat afternoon). | ||||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 3 | 12 | 16 | 15 | 13 | 11 | 10 | 10 | 9 | 13 | 12 | 12 | 14 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 26 | 28 | 26 | 30 | 28 | 27 | 26 | 15 | 3 | 14 | 95 | 86 | 133 | 340 | 223 | 172 | 185 | 1121 | 1080 | 736 | 1263 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | on | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | ||
High Tide / height (m) | 2:08PM 0.37 | 11:39PM 0.20 | 3:03PM 0.35 | 1:29AM 0.21 | 3:52PM 0.33 | 2:57AM 0.23 | 4:33PM 0.32 | 4:18AM 0.26 | 5:07PM 0.30 | 5:31AM 0.29 | 5:33PM 0.28 | 6:34AM 0.31 | 5:54PM 0.25 | 7:27AM 0.33 | |||||||||
Low Tide / height (m) | 10:43PM 0.20 | 6:45AM 0.05 | 10:41PM 0.20 | 8:00AM 0.08 | 10:52PM 0.19 | 9:21AM 0.12 | 11:10PM 0.18 | 10:37AM 0.15 | 11:31PM 0.17 | 11:47AM 0.17 | 11:54PM 0.15 | 12:52PM 0.18 | 12:18AM 0.12 | 1:54PM 0.19 | |||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||||
| Sunrise | - | - | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:07 | - | - | 6:07 | ||
| Sunset | 5:52 | - | - | 5:51 | - | - | 5:50 | - | - | 5:49 | - | - | 5:49 | - | - | 5:47 | - | - | 5:46 | - | - | ||
 |  | |  |  | | | |  | | | | | | |  |  | | | | | |||
Rain (mm) | 3 | 1 | 1 | - | 1 | - | - | 4 | - | 5 | 1 | 3 | 2 | 4 | 3 | - | - | 1 | - | 2 | - | ||
| Temp. °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | ||
| Feels °C (?) | 28 | 28 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 28 | 28 | 29 | 31 | 33 | 32 | 33 | 31 | 29 | 29 | 29 | 27 | ||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Saint Martin
The wind is still offshore at Cupecoy (light winds from the NE at St Maarten Juliana Airport 2 km from Cupecoy). 0.3m 9s swell from the N to make surfable waves.
2 h 35 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cupecoy surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Cupecoy Surf forecast
The above surf forecast table for Cupecoy provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cupecoy can be found by selecting the local surf guide option on the grey menu. Our Cupecoy 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 (Cupecoy) 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 Cupecoy 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.
Are you planning a holiday in Netherlands-Antilles - Saint Martin? If you are looking for accommodation near Cupecoy, camping, hotels and holiday cottages in Netherlands-Antilles - Saint Martin, consider staying in Marigot which is 6 km (4 miles) away. Other places in and around Netherlands-Antilles - Saint Martin where you can find information about places to rent, and car hire include Philipsburg which is 7 km (4 miles) away, The Valley, Gustavia and Basseterre.
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