Block Island surfForecast / Rhode Island / USA

information circle48hr Weather and Surf, issued 7 pm Monday 11 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
8.6° C
(Which is 1.5°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 12AM is: 0.9m 7s primary swell from a Southeast direction and 0.3m 10s secondary swell from a Southeast direction, 0.7m 6s secondary swell from a South-southwest direction (forecast issued at 07:00pm May 11). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (12 May)2.5ft (0.8m)8s
Afternoon (12 May)2.5ft (0.7m)8s
Evening (12 May)3ft (0.9m)4s

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 Thu afternoon. Very mild (max 14°C on Wed night, min 9°C on Mon night). Winds decreasing (fresh winds from the S on Wed afternoon, light winds from the SSE by Thu afternoon).

Mon
11
Tuesday
12
Wednesday
13
Thu
14
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
0
0
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)
1
SE
8
0.9
SE
8
0.9
SE
7
0.6
ESE
8
0.6
ESE
8
0.8
ESE
8
0.7
ESE
8
0.7
ESE
8
0.5
ESE
7
0.9
SW
4
1
SW
4
0.9
SW
4
0.8
SW
4
0.9
SW
4
0.9
SSW
5
1.2
SSW
5
1.5
SSW
5
1.6
SSW
6
1.7
S
6
1.6
S
6
1.5
S
6
0.9
SSW
6
1.1
S
6
0.9
SSW
6
Wave Graph
Metric surfscale
Energy kJ
113
82
77
49
54
76
51
50
31
30
40
31
26
32
39
69
121
154
193
175
148
61
75
43
Wind (km/h)
20
SSW
20
S
15
SSW
25
NNW
25
NW
20
N
10
NNW
20
SW
25
SW
30
SW
30
WSW
25
SW
25
SW
30
SSW
30
S
35
S
35
S
35
S
30
S
25
SSE
25
SSE
20
SSE
10
SE
10
SE
cross-on
cross-on
cross-on
off
off
off
off
cross
cross
cross
cross
cross
cross-on
cross-on
on
cross-on
cross-on
on
on
on
on
on
cross-on
cross-on
High Tide
4:06PM0.78m
4:19AM0.72m
4:57PM0.87m
5:17AM0.76m
5:45PM0.97m
6:10AM0.80m
Low Tide
10:43PM0.14m
10:26AM0.06m
11:36PM0.06m
11:10AM0.01m
00:26AM-0.01m
11:55AM-0.04m
cloud
cloud
clear
cloud
part cloud
clear
clear
part cloud
clear
clear
cloud
clear
part cloud
cloud
cloud
cloud
clear
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
5:30
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:52
7:53
7:54
7:55
2
Temp °C
12
10
10
10
9
9
12
12
13
13
11
11
10
11
11
11
12
13
13
13
14
14
12
12
6
5
6
3
2
3
8
6
6
5
4
5
4
5
4
3
5
6
7
8
9
10
10
11
Swell 1
Height (m)
Direction
Period (s)
1
SE
8
0.9
SE
8
0.9
SE
7
0.6
ESE
8
0.6
ESE
8
0.8
ESE
8
0.7
ESE
8
0.7
ESE
8
0.5
ESE
7
0.5
ESE
7
0.5
ESE
7
0.4
ESE
7
0.4
ESE
7
0.4
ESE
7
0.3
ESE
7
0.3
ESE
7
0.3
ESE
7
0.3
ESE
7
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.9
SSW
6
0.2
ESE
10
0.5
ESE
5
Energy kJ
113
82
77
49
54
76
51
50
31
30
29
19
16
16
9
9
9
9
10
10
10
61
9
14
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
15
0.1
SE
15
0.3
SE
10
0.5
SE
7
0.5
SE
7
0.3
SSW
6
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
E
7
0.3
ESE
6
0.2
ESE
10
0.2
ESE
10
0.6
ESE
5
0.2
ESE
10
Energy kJ
8
8
17
24
26
7
17
17
17
17
17
16
16
16
16
16
16
16
8
8
10
10
20
10
Swell 3
Height (m)
Direction
Period (s)
0.1
S
15
0.3
SE
11
0.1
SE
14
0.4
SSW
4
0.4
SSW
6
0.3
SE
11
0.3
S
6
0.2
NNE
3
0.1
NE
4
0.1
E
11
0.1
E
11
0.2
ESE
10
0.1
E
7
0.2
E
7
0.2
ESE
10
0.2
ESE
10
Energy kJ
4
20
8
5
13
18
6
1
1
2
2
10
1
4
10
10
Wind waves
Height (m)
Direction
Period (s)
0.5
S
7
0.6
S
7
0.7
SSW
6
0.5
SW
3
0.6
NW
3
0.6
NNW
3
0.5
N
3
0.3
W
3
0.6
SW
3
0.9
SW
4
1
SW
4
0.9
SW
4
0.8
SW
4
0.9
SW
4
0.9
SSW
5
1.2
SSW
5
1.5
SSW
5
1.6
SSW
6
1.7
S
6
1.6
S
6
1.5
S
6
0.9
SE
5
1.1
S
6
0.9
SSW
6
Energy kJ
23
33
40
6
6
8
6
1
9
28
40
31
26
32
39
69
121
154
193
175
148
42
75
43
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
24
24
24
26
26
26
24
36
152
198
195
160
160
161
198
1095
1008
1084
397
608
340
217
178
152
Best forecast wave conditions in Rhode Island
Rating
(10 max)
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
1
1
2
2
2
2
2
2
1
2
2
2
3
3
2
1
1
1
2
2
3
3
2
Header Global
Rating
(10 max)
9
9
9
5
8
8
9
9
9
9
6
9
9
7
7
6
9
8
9
5
5
5
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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