Block Island surfForecast / Rhode Island / USA

information circle48hr Weather and Surf, issued 1 pm Friday 15 May 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Block Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Block Island sea temperature is
9.2° C
(Which is 1.6°C colder than average for this time of year)

How big are the waves at Block Island today?

The current surf forecast for Block Island at 5PM is: 1.0m 10s primary swell from a Southeast direction and 0.9m 9s secondary swell from a East-southeast direction (forecast issued at 01:00pm May 15). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (EDT) & DateWave HeightWave Period
Morning (15 May)6ft (1.8m)9s
Afternoon (15 May)4.5ft (1.4m)9s
Evening (15 May)3.5ft (1.0m)9s

Table - waves today at Block Island. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri afternoon. Warm (max 23°C on Sun afternoon, min 10°C on Fri night). Winds increasing (light winds from the NNW on Fri night, fresh winds from the SW by Sat night).

Fri
15
Saturday
16
Sunday
17
Mon
18
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
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
Rating
(10 max)
3
2
2
1
2
2
2
0
0
0
0
0
0
0
0
0
2
0
0
0
1
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)
1.5
SE
9
1.4
ESE
9
1
SE
10
1
SE
9
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
9
0.9
SSE
9
0.7
ESE
9
0.8
ESE
9
0.6
ESE
9
1.3
SSW
5
1.8
SW
6
1.7
SW
6
0.9
SSE
8
1.2
SW
7
1.2
SW
7
1.3
SSW
7
1.4
SSW
7
1.3
SSW
7
1.1
SW
7
1
SSW
7
0.8
SSW
7
Wave Graph
Metric surfscale
Energy kJ
382
313
185
170
154
154
154
119
126
86
88
58
95
229
223
94
125
135
159
180
154
103
85
51
Wind (km/h)
0
SSW
10
WSW
10
WNW
25
NNE
15
N
5
NNW
10
WSW
15
WSW
20
SW
25
SSW
30
SSW
30
SSW
30
SW
30
SW
25
WSW
20
SW
15
W
25
SW
25
SW
30
SW
15
W
15
N
15
NE
20
E
glassy
cross
cross-off
cross-off
cross-off
off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-off
cross-on
cross
cross
cross-off
cross-off
cross-off
cross
High Tide
7:24PM1.12m
7:52AM0.86m
8:14PM1.16m
8:43AM0.87m
9:06PM1.17m
Low Tide
12:41PM-0.09m
2:05AM-0.11m
1:29PM-0.12m
2:56AM-0.12m
2:19PM-0.12m
3:50AM-0.10m
clear
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:57
7:58
7:59
8:00
1
1
Temp °C
12
12
13
12
11
10
11
11
12
14
15
14
13
14
13
15
20
22
23
22
21
21
19
16
12
10
11
7
8
8
9
7
8
9
9
8
7
8
9
12
18
18
19
19
19
19
16
12
Swell 1
Height (m)
Direction
Period (s)
1.5
SE
9
1.4
ESE
9
1
SE
10
1
SE
9
0.9
ESE
10
0.9
ESE
10
0.9
SSE
9
0.9
ESE
9
0.9
SSE
9
0.7
SSE
8
0.7
SSE
8
0.6
SSE
8
0.6
SSE
8
0.6
SSE
8
0.6
SSE
8
1
SSW
7
1.2
SW
7
0.9
SSE
8
0.8
SSE
8
0.6
SE
8
1.3
SSW
7
1.1
SW
7
1
SSW
7
0.8
SSW
7
Energy kJ
382
313
185
170
154
154
137
119
126
75
73
54
54
55
54
93
124
105
75
54
154
103
85
51
Swell 2
Height (m)
Direction
Period (s)
0.9
S
9
0.9
S
9
0.9
ESE
9
0.8
E
9
0.8
SSE
9
0.8
SE
10
0.9
ESE
10
0.6
SSE
8
0.8
ESE
9
0.7
ESE
9
0.8
ESE
9
0.6
ESE
9
0.5
ESE
9
0.5
ESE
9
0.4
ESE
8
0.9
SSE
8
1
SSE
8
1
SSE
8
0.3
SSE
8
0.6
SSE
8
0.8
SSE
8
0.6
SSE
8
0.6
SSE
8
Energy kJ
130
130
144
106
106
115
154
53
108
86
88
58
44
43
28
94
125
128
11
43
67
39
40
Swell 3
Height (m)
Direction
Period (s)
0.8
E
9
0.8
S
8
0.7
S
8
0.7
SE
10
0.7
S
9
0.3
SW
4
0.5
SSE
10
0.2
SSE
10
0.3
ESE
8
0.3
S
7
Energy kJ
103
90
66
98
73
3
54
10
13
9
Wind waves
Height (m)
Direction
Period (s)
0.3
SW
4
0.3
SW
4
0.6
SSW
3
0.9
SW
4
1
SSW
5
1.3
SSW
5
1.8
SW
6
1.7
SW
6
1
WSW
6
1.2
SW
7
1.3
SSW
7
1.4
SSW
7
0.4
ENE
3
0.5
E
3
Energy kJ
3
3
7
24
44
95
229
223
75
135
159
180
3
6
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
2
2
2
2
2
1
1
1
1
1
1
2
1
2
1
1
1
2
1
1
1
Distance (km)
0
24
0
24
0
0
0
24
26
24
24
24
1148
133
24
24
0
26
24
217
24
24
24
24
Best forecast wave conditions in Rhode Island
Rating
(10 max)
3
2
2
2
2
2
2
2
1
1
1
2
2
2
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
2
2
2
3
3
3
2
2
3
4
3
3
4
4
2
2
3
4
3
3
4
Header Global
Rating
(10 max)
6
5
5
5
5
5
4
5
6
5
5
5
4
5
6
9
9
7
4
4
5
8
7
4
  • 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

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 Block Island 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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest