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Surf Forecasts:
Coastguards surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 6 am Wednesday 10 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Coastguards surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coastguards sea temperature is
8.4° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Coastguards today?
The current surf forecast for Coastguards at 1PM is: 3.0m 7s primary swell from a South-southwest direction and 0.2m 9s secondary swell from a East-southeast direction (forecast issued at 06:00am December 10). The wind direction is predicted to be onshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 6ft (1.9m) | 6s |
| Afternoon (10 Dec) | 10ft (3.0m) | 8s |
| Evening (10 Dec) | 8ft (2.5m) | 8s |
Table - waves today at Coastguards. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | 5 | 5 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 269 | 231 | 312 | 890 | 1109 | 933 | 809 | 643 | 324 | 251 | 153 | 100 | 97 | 141 | 136 | 177 | 156 | 61 | 53 | 51 | 29 | 20 | 14 | 9 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide / height (m) | 11:24AM 1.29 | 12:09AM 1.17 | 12:18PM 1.20 | 1:02AM 1.17 | 1:10PM 1.13 | |||||||||||||||||||
Low Tide / height (m) | 4:55AM 0.11 | 5:46PM 0.01 | 5:58AM 0.18 | 6:44PM 0.06 | 7:06AM 0.22 | 7:39PM 0.09 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| Sunrise | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:25 | - | - | - | - | - | - | - | 4:25 | - | - | - | - | - | - | - | 4:25 | - | - | - |
 | |  |  | |  |  | | |  | |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 3 | 3 | 5 | 8 | 8 | 7 | 6 | 6 | 5 | 2 | -1 | 0 | 1 | 0 | 0 | 0 | 0 | -1 | -1 | 0 | 1 | 1 | 1 | 0 |
| Feels °C (?) | -6 | -5 | -4 | -2 | -2 | -2 | -3 | -2 | -4 | -8 | -11 | -11 | -9 | -11 | -11 | -11 | -10 | -10 | -10 | -9 | -7 | -6 | -6 | -6 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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