Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island 48 hour detailed Surf Forecast

Issued: 7 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
20.0°C
0.2° 

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 (14 Sep):

  • Morning surf: Morning surf (14 Sep, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (14 Sep, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Evening surf: Evening surf (14 Sep, local time) - 1.5ft (0.5m), 8s period with SE swell.

The current surf forecast for Block Island at 3PM is: 0.4m 9s primary swell from a Southeast direction and 0.5m 6s secondary swell from a South direction (forecast issued at 07:00am September 14). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (EDT) & DateWave HeightWave Period
Morning (14 Sep)1.5ft (0.4m)9s
Afternoon (14 Sep)1.5ft (0.4m)9s
Evening (14 Sep)1.5ft (0.5m)8s

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


Short Range Forecast

Some drizzle, heaviest during Mon morning. Warm (max 23°C on Mon afternoon, min 14°C on Tue morning). Winds decreasing (fresh winds from the NNW on Mon morning, calm by Tue night).

Monday
14
Tuesday
15
Wednesday
16
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.7
SSW
6
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.5
SE
8
0.5
SE
8
0.5
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
9
0.3
SE
9
0.3
SE
9
0.5
E
4
0.5
E
4
0.5
E
4
0.5
E
5
0.4
ESE
5
0.4
ESE
5
0.4
ESE
5
0.3
ESE
7
0.5
E
7
0.5
E
7
0.5
E
8
Wave Graph
Metric surfscale
Energy kJ
28
28
27
27
35
33
33
24
18
20
13
13
10
9
10
11
8
8
8
10
27
28
29
Wind (km/h)
20
WNW
30
NNW
30
NNW
20
NNW
20
N
25
N
25
NNE
25
NE
30
NE
25
NE
15
ENE
10
E
10
ESE
15
ESE
15
SE
5
S
5
SSW
5
SW
15
SSW
20
SW
20
SSW
20
SW
20
SW
Wind State
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
on
glassy
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
10:41AM1.01m
10:54PM0.80m
11:24AM0.95m
11:35PM0.73m
12:09PM0.88m
Low Tide
3:55AM0.06m
4:59PM0.09m
4:21AM0.11m
5:46PM0.16m
4:52AM0.16m
6:44PM0.22m
part cloud
light rain
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:55
6:53
 mm
1
Temp °C
22
19
20
23
23
21
18
16
15
14
15
15
16
16
15
16
16
16
16
17
18
18
19
Feels °C
23
15
15
18
18
16
12
10
10
9
12
13
14
14
13
16
16
16
14
15
16
15
16
  • 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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