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Surf Forecasts:

K38 and 39 surf break

K38 and 39 surfForecast / Rhode Island / USA

information circle48hr Weather and Surf, issued 1 am Wednesday 18 Mar 2026 EDT
Forecast 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
3.1° C
 (Which is 1.3°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 5AM is: 1.6m 10s primary swell from a South direction and 1.0m 10s secondary swell from a South-southwest direction, 0.4m 3s secondary swell from a Northwest direction (forecast issued at 01:00am March 18). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (18 Mar)5ft (1.5m)10s
Afternoon (18 Mar)4.5ft (1.3m)9s
Evening (18 Mar)4ft (1.2m)9s

Table - waves today at K38 and 39. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
0
0
2
1
1
2
0
0
1
0
2
1
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
S
1.4
SSE
1.6
S
1.5
S
1.4
SSE
1.3
SSE
1.3
SSE
1.2
SSE
1.2
SSE
1.1
SSE
1.1
SSE
0.8
SSE
1
SSE
0.9
SSE
0.9
SSE
0.8
SSE
0.6
SSE
0.5
S
0.5
SE
0.6
SE
0.5
SE
0.5
SE
0.5
SE
0.6
SE
Period(s) (?)101010101010999999988888888898
Wave
Graph
(?)Metric surfscale
Energy kJ (?)824418520450378283271222222184180103141111111885334334334353757
Wind
(km/h)
25
NW
20
NW
15
NW
10
NW
15
NW
5
S
20
S
10
SSW
10
S
10
SSE
5
ESE
5
E
10
SSE
15
S
15
S
10
SSW
10
SSW
15
SW
15
WSW
10
W
10
SW
20
SSW
20
SSW
20
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscrossglasscross-
on		cross-
on		cross-
on		crosscross-
off		glasscross-
on		cross-
on		cross-
on		cross-
on		ononcross-
on		cross-
on		onononcross-
on
High Tide
/ height (m)
8:00AM
1.01
8:18PM
1.09
8:42AM
1.03
9:01PM
1.14
9:25AM
1.02
Low Tide
/ height (m)
1:45AM
-0.15
1:58PM
-0.14
2:25AM
-0.20
2:34PM
-0.18
3:07AM
-0.22
3:12PM
-0.20
Wednesday
18
Thursday
19
Friday
20
Sunrise---6:52-------6:50-------6:50----
Sunset------6:54-------6:55-------6:57-
clear
clear
clear
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
clear
cloud
clear
clear
clear
part cloud
Rain (mm)
------------------------
Temp. °C0-2-3-3-20-1-2-1-1-1-1011112223544
Feels °C (?)-8-9-9-9-8-4-8-7-5-5-5-5-5-5-5-4-4-4-3-2-10-2-2
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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View detailed surf forecast for K38 and 39 at:
surf-forecast.com

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