Block Island surfForecast / Rhode Island / USA

information circle48hr Weather and Surf, issued 1 pm Tuesday 19 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
10.6° C
(Which is slightly cooler than normal)

How big are the waves at Block Island today?

The current surf forecast for Block Island at 8PM is: 2.1m 7s primary swell from a South-southwest direction and 0.5m 9s secondary swell from a Southeast direction, 0.1m 16s secondary swell from a South direction (forecast issued at 01:00pm May 19). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (19 May)5ft (1.5m)6s
Afternoon (19 May)5.5ft (1.7m)6s
Evening (19 May)7ft (2.1m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 31mm), heaviest during Wed night. Warm (max 24°C on Wed afternoon, min 9°C on Thu night). Winds decreasing (strong winds from the SW on Tue afternoon, calm by Thu night).

Tue
19
Wednesday
20
Thursday
21
Fri
22
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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)
1.5
SSW
6
1.6
SSW
6
1.8
SSW
6
2.1
SSW
7
2
SSW
7
1.9
SSW
7
1.8
SW
7
1.7
SSW
7
1.5
SSW
7
1.4
SSW
7
1.5
SSW
6
1.5
SSW
6
1.3
SSW
7
1.2
SSW
7
1.1
SSW
7
0.9
SSW
6
0.9
SSW
6
0.7
SSW
6
0.7
SSW
6
0.7
SSW
6
0.7
S
6
0.4
SE
9
0.4
SE
9
0.4
SE
9
Wave Graph
Metric surfscale
Energy kJ
154
173
241
362
353
323
303
251
199
165
181
193
154
125
99
75
57
40
41
41
39
28
26
29
Wind (km/h)
30
SW
30
SW
40
SW
30
SW
25
SW
25
WSW
30
SW
25
WSW
25
WSW
30
SW
30
SW
30
WNW
20
WNW
20
NW
20
N
30
NNE
20
NE
15
ESE
5
ESE
15
SSE
5
S
5
W
10
NNW
20
NE
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross-on
cross
cross-off
cross-off
off
off
cross-off
cross-off
cross-on
cross-on
on
on
glassy
off
cross-off
High Tide
10:30AM0.87m
10:54PM1.07m
11:28AM0.85m
11:51PM0.99m
12:31PM0.84m
00:51AM0.91m
Low Tide
4:09PM-0.06m
5:47AM-0.04m
5:15PM-0.00m
6:48AM-0.00m
6:36PM0.06m
7:49AM0.02m
clear
clear
clear
cloud
rain showers
part cloud
cloud
clear
clear
clear
rain showers
heavy rain
light rain
cloud
cloud
light rain
light rain
cloud
light rain
light rain
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:22
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:00
8:01
8:02
8:04
1
2
19
4
1
1
1
2
Temp °C
17
18
17
19
19
23
20
21
23
24
21
20
20
16
14
11
11
11
10
9
10
9
10
9
13
14
11
15
16
20
17
18
21
20
17
18
18
12
9
5
6
8
8
6
9
8
8
5
Swell 1
Height (m)
Direction
Period (s)
0.6
SE
8
0.6
SE
8
0.6
SE
8
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
1.3
SSW
7
1.2
SSW
7
1.1
SSW
7
0.9
SSW
6
0.9
SSW
6
0.7
SSW
6
0.7
SSW
6
0.7
SSW
6
0.7
S
6
0.6
S
6
0.6
S
6
0.5
S
6
Energy kJ
42
44
42
38
39
37
38
40
29
29
29
29
154
125
99
75
57
40
41
41
39
28
26
16
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
13
0.1
SE
13
0.1
SE
14
0.1
S
16
0.1
S
16
0.1
S
16
0.1
S
15
0.1
S
16
0.1
S
15
0.1
S
15
0.1
SE
12
0.1
SE
14
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
E
3
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
Energy kJ
7
7
7
5
5
5
5
5
4
4
6
8
29
29
29
29
29
28
28
3
29
21
21
29
Swell 3
Height (m)
Direction
Period (s)
0.1
S
16
0.1
SE
12
0.1
SE
12
0.1
S
15
0.1
S
15
0.1
SE
15
0.1
S
15
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.4
SE
9
0.3
E
3
0.3
E
4
0.1
SE
13
0.1
SE
13
Energy kJ
5
6
6
4
4
8
4
8
8
8
8
29
2
2
7
7
Wind waves
Height (m)
Direction
Period (s)
1.5
SSW
6
1.6
SSW
6
1.8
SSW
6
2.1
SSW
7
2
SSW
7
1.9
SSW
7
1.8
SW
7
1.7
SSW
7
1.5
SSW
7
1.4
SSW
7
1.5
SSW
6
1.5
SSW
6
0.4
NW
3
0.4
NW
3
0.6
NNE
3
0.8
NNE
4
0.6
NE
4
0.4
ENE
4
0.3
E
4
Energy kJ
154
173
241
362
353
323
303
251
199
165
181
193
2
2
8
19
11
6
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
24
24
195
24
24
24
195
211
219
219
201
24
24
0
24
24
24
54
24
645
24
24
24
689
Best forecast wave conditions in Rhode Island
Rating
(10 max)
1
1
1
2
2
2
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
2
2
2
2
2
2
1
1
2
2
2
1
3
1
1
1
1
2
2
2
2
Header Global
Rating
(10 max)
4
4
4
5
5
5
4
4
4
5
5
4
4
5
5
4
4
4
4
5
5
5
7
8
  • 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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