K38 and 39 surf break

K38 and 39 surfForecast / Rhode Island / USA

information circle48hr Weather and Surf, issued 7 pm Thursday 21 May 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
12.5° C
(Which is 1.1°C warmer than normal for this time of year)

How big are the waves at K38 and 39 today?

The current surf forecast for K38 and 39 at 2AM is: 0.5m 6s primary swell from a South direction and 0.3m 9s secondary swell from a Southeast direction (forecast issued at 07:00pm May 21). The wind direction is predicted to be offshore.

Time (EDT) & DateWave HeightWave Period
Morning (22 May)1ft (0.3m)9s
Afternoon (22 May)1ft (0.3m)9s
Evening (22 May)1ft (0.3m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 37mm), heaviest during Sun afternoon. Very mild (max 14°C on Thu night, min 9°C on Sat night). Winds increasing (calm on Thu night, strong winds from the E by Sun afternoon).

Thu
21
Friday
22
Saturday
23
Sun
24
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.6
S
6
0.6
S
6
0.6
S
6
0.5
S
6
0.5
S
6
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.2
S
7
0.1
S
13
0.1
S
13
0.1
S
13
1.3
SE
7
1.6
SE
7
1.7
SE
8
1.8
SE
8
2.1
SE
9
2.3
SE
9
2.5
SE
8
2.5
SE
9
Wave Graph
Metric surfscale
Energy kJ
28
28
28
19
18
13
13
14
14
14
15
15
4
4
4
4
155
226
320
408
625
777
848
1017
Wind (km/h)
10
SSE
5
SSE
5
ESE
10
NE
25
NNE
30
NE
25
ENE
25
E
20
ESE
20
E
15
ESE
15
E
15
ENE
20
ENE
20
E
20
ESE
20
ESE
20
SE
20
SE
20
ESE
25
E
35
E
40
E
40
E
cross
cross-on
glassy
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
00:46AM1.02m
1:23PM0.92m
1:47AM0.94m
2:24PM0.92m
2:48AM0.88m
Low Tide
6:26PM0.02m
7:19AM-0.01m
7:44PM0.06m
8:25AM0.03m
9:04PM0.08m
9:27AM0.05m
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
cloud
light rain
light rain
mod rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:20
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:02
8:04
8:05
8:06
2
1
2
5
10
15
Temp °C
14
13
13
14
11
10
13
14
13
11
11
11
11
11
12
12
12
10
9
10
10
9
9
10
12
11
12
12
5
3
7
8
7
6
7
7
7
6
6
7
7
6
5
6
5
2
1
3
Swell 1
Height (m)
Direction
Period (s)
0.6
S
6
0.6
S
6
0.6
S
6
0.5
S
6
0.5
S
6
0.4
S
6
0.4
S
6
0.3
SSW
6
0.3
SSE
6
0.3
S
6
0.3
SSE
6
0.3
SE
5
0.2
S
7
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
S
13
0.1
S
6
Energy kJ
28
28
28
19
18
11
10
6
7
6
6
4
4
4
4
4
3
1
Swell 2
Height (m)
Direction
Period (s)
0.4
ENE
4
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
10
0.3
SE
10
0.2
S
6
0.1
SE
10
0.1
SE
9
0.1
S
13
0.1
S
13
Energy kJ
5
13
12
12
13
13
13
14
14
14
15
3
4
3
3
3
Swell 3
Height (m)
Direction
Period (s)
0.3
SE
9
0.3
E
4
0.2
E
4
0.2
E
4
0.1
S
14
0.1
S
13
0.1
S
13
0.2
SSE
7
0.1
SW
6
0.1
SE
13
0.1
SE
13
0.3
SE
10
0.1
SE
8
0.1
S
13
Energy kJ
13
3
1
1
4
3
3
5
1
7
7
15
2
4
Wind waves
Height (m)
Direction
Period (s)
0.8
ENE
4
0.9
ENE
4
1
E
5
1
E
5
0.8
E
4
0.7
E
4
0.5
ESE
4
0.6
ESE
5
0.7
SE
5
0.9
ESE
5
1.1
SE
6
1.3
SE
7
1.6
SE
7
1.7
SE
8
1.8
SE
8
2.1
SE
9
2.3
SE
9
2.5
SE
8
2.5
SE
9
Energy kJ
14
31
48
47
26
17
10
17
29
44
86
155
226
320
408
625
777
848
1017
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
2
2
2
2
4
3
Distance (km)
158
120
56
180
750
697
690
754
754
768
754
669
638
628
611
1119
1119
611
611
611
398
398
294
290
Best forecast wave conditions in Rhode Island
Rating
(10 max)
Best forecast wave conditions in United States
Rating
(10 max)
1
1
2
2
2
2
2
1
1
1
1
2
2
2
2
1
1
1
2
2
3
3
4
3
Header Global
Rating
(10 max)
5
4
5
7
7
7
6
5
7
5
5
6
7
8
7
6
5
5
5
5
5
6
5
5
  • 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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