Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Issued: 1 am 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
15.7° C

1.2°C colder than average for this time of year

Block Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Block Island today (18 Jun):

  • Morning surf: Morning surf (18 Jun, local time) - 4.5ft (1.4m), 6s period with S swell.
  • Afternoon surf: Afternoon surf (18 Jun, local time) - 6ft (1.9m), 6s period with S swell.
  • Evening surf: Evening surf (18 Jun, local time) - 8ft (2.5m), 7s period with SSW swell.

The current surf forecast for Block Island at 10AM is: 1.5m 6s primary swell from a South direction and 0.1m 8s secondary swell from a East direction, 0.1m 15s secondary swell from a Southeast direction (forecast issued at 01:00am June 18). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (18 Jun)4.5ft (1.4m)6s
Afternoon (18 Jun)6ft (1.9m)6s
Evening (18 Jun)8ft (2.5m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 23°C on Thu night, min 17°C on Sat night). Winds decreasing (strong winds from the S on Thu afternoon, light winds from the W by Fri night).

Thursday
18
Friday
19
Saturday
20
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
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
S
7
1
S
7
1.3
S
6
1.6
S
6
1.9
S
6
2.4
SSW
7
2.5
SSW
7
2.5
SSW
8
2.2
SSW
8
1.8
SSW
7
1.6
SSW
7
1.7
SSW
7
1.6
SSW
8
1.8
SSW
8
2
SSW
8
1.8
SSW
8
1.6
SSW
8
1.3
SSW
8
1.1
SSW
8
1
SSW
7
1.5
SW
7
1.9
SW
6
1.9
SW
6
1.6
SSW
6
Wave Graph
Metric surfscale
Energy kJ
73
92
141
181
256
488
651
746
572
363
273
286
298
446
524
432
323
206
155
117
231
252
303
203
Wind (km/h)
20
S
25
S
30
S
40
SSE
50
S
45
SW
45
SW
40
WSW
30
W
30
WNW
30
W
30
WSW
30
SW
40
SW
35
WSW
20
W
30
W
35
W
40
W
30
W
40
WSW
30
WSW
20
WNW
20
NW
Wind State
cross-on
on
cross-on
on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
High Tide
11:16AM0.93m
11:35PM0.99m
12:15PM0.92m
00:29AM0.90m
1:14PM0.91m
Low Tide
5:27AM-0.05m
5:19PM0.01m
6:21AM-0.02m
6:31PM0.07m
7:14AM0.01m
7:42PM0.12m
cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:21
8:21
8:22
 mm
Temp °C
19
19
19
19
20
20
21
23
22
20
19
19
20
20
21
21
19
18
18
20
21
23
23
20
Feels °C
15
16
15
14
13
14
16
18
18
15
14
14
15
14
16
18
14
12
11
15
14
18
19
16
Swell 1
Height (m)
Direction
Period (s)
0.1
E
6
0.1
SE
15
0.1
E
8
0.1
E
8
0.1
E
8
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
1.8
SSW
7
1.6
SSW
7
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
1.8
SSW
8
1.6
SSW
8
1.3
SSW
8
1.1
SSW
8
1
SSW
7
0.2
S
10
0.1
SE
12
0.1
SE
12
1.6
SSW
6
Energy kJ
1
8
1
1
1
8
8
8
8
363
273
7
7
7
7
432
323
206
155
117
8
6
6
203
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
15
0.1
E
6
0.1
SE
15
0.1
SE
14
0.1
SE
14
0.1
E
8
0.1
E
7
0.1
E
7
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
13
0.1
E
7
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
12
Energy kJ
9
1
8
8
8
1
1
1
8
8
7
7
1
7
7
7
7
7
7
6
Swell 3
Height (m)
Direction
Period (s)
0.1
E
12
0.1
E
7
0.1
E
11
0.1
E
7
0.1
E
7
Energy kJ
3
1
2
1
1
Wind waves
Height (m)
Direction
Period (s)
0.9
S
7
1
S
7
1.3
S
6
1.6
S
6
1.9
S
6
2.4
SSW
7
2.5
SSW
7
2.5
SSW
8
2.2
SSW
8
1.7
SSW
7
1.6
SSW
8
1.8
SSW
8
2
SSW
8
0.8
W
4
1.2
W
5
1.2
W
5
1.5
SW
7
1.9
SW
6
1.9
SW
6
0.6
W
6
Energy kJ
73
92
141
181
256
488
651
746
572
286
298
446
524
21
63
71
231
252
303
21
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
3
2
1
1
1
2
2
2
2
1
1
1
1
1
2
1
Distance (km)
670
642
24
843
1541
397
195
152
25
25
26
26
204
219
26
24
25
29
228
26
227
228
25
25
Best forecast wave conditions in Rhode Island
Rating
(10 max)
1
3
2
1
1
2
3
2
1
1
2
1
Best forecast wave conditions in United States
Rating
(10 max)
4
3
3
3
4
1
3
2
3
4
3
3
2
4
3
3
3
3
4
4
1
3
2
3
Header Global
Rating
(10 max)
9
9
9
5
5
5
5
6
6
6
6
7
4
4
4
4
4
5
5
9
9
4
9
9
  • 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
How to use the Wavefinder

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.


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