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Surf Forecasts:
K38 and 39 surfForecast / Rhode Island / USA
48hr Weather and Surf, issued 7 pm Friday 20 Mar 2026 EDTForecast update in hr min s Forecast update imminent
K38 and 39 surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's K38 and 39 sea temperature is
3.3° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at K38 and 39 today?
The current surf forecast for K38 and 39 at 4AM is: 1.9m 7s primary swell from a South-southwest direction and 0.5m 9s secondary swell from a Southeast direction, 0.2m 8s secondary swell from a East direction (forecast issued at 07:00pm March 20). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 5ft (1.5m) | 7s |
| Afternoon (21 Mar) | 3.5ft (1.1m) | 7s |
| Evening (21 Mar) | 3ft (0.9m) | 7s |
Table - waves today at K38 and 39. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 57 | 138 | 182 | 219 | 390 | 284 | 209 | 138 | 94 | 74 | 72 | 53 | 37 | 54 | 112 | 103 | 94 | 80 | 73 | 79 | 117 | 100 | 83 | 83 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- on | cross- on | cross- on | on | on | on | off | cross- off | off | off | cross- off | cross- off |
High Tide / height (m) | 9:45PM 1.16 | 10:09AM 0.98 | 10:31PM 1.15 | 10:57AM 0.92 | 11:21PM 1.11 | 11:49AM 0.86 | ||||||||||||||||||
Low Tide / height (m) | 3:12PM -0.20 | 3:50AM -0.21 | 3:52PM -0.19 | 4:37AM -0.17 | 4:36PM -0.15 | 5:28AM -0.11 | ||||||||||||||||||
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:48 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:45 | - | - |
| Sunset | 6:57 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:59 | - | - | - | - | - | - | - |
 |  |  |  | |  |  | | |  | | | | | | | | |  | | | | | | |
Rain (mm) | - | - | 4 | 7 | - | - | - | - | - | - | - | - | - | - | - | - | - | 4 | 12 | 4 | - | - | - | - |
| Temp. °C | 6 | 7 | 6 | 6 | 6 | 7 | 9 | 12 | 12 | 8 | 4 | 4 | 5 | 5 | 7 | 7 | 8 | 7 | 6 | 3 | 2 | 1 | 1 | 2 |
| Feels °C (?) | -2 | -1 | 0 | 0 | 3 | 4 | 4 | 8 | 7 | 5 | -1 | 0 | -1 | -2 | 1 | 1 | 4 | 4 | 2 | -4 | -6 | -7 | -6 | -5 |
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