Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island 48 hour detailed Surf Forecast

Issued: 1 am 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
21.0°C
0.6° 

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 (06 Sep):

  • Morning surf: Morning surf (06 Sep, local time) - 1.5ft (0.4m), 7s period with E swell.
  • Afternoon surf: Afternoon surf (06 Sep, local time) - 1.5ft (0.4m), 8s period with E swell.
  • Evening surf: Evening surf (06 Sep, local time) - 1.5ft (0.5m), 8s period with E swell.

The current surf forecast for Block Island at 6AM is: 0.6m 7s primary swell from a East direction and 0.2m 6s secondary swell from a South-southwest direction, 0.3m 9s secondary swell from a Southeast direction (forecast issued at 01:00am September 06). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (06 Sep)1.5ft (0.4m)7s
Afternoon (06 Sep)1.5ft (0.4m)8s
Evening (06 Sep)1.5ft (0.5m)8s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sun morning. Warm (max 24°C on Mon afternoon, min 17°C on Sun morning). Wind will be generally light.

Sunday
6
Monday
7
Tuesday
8
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
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
ENE
5
0.6
E
7
0.4
E
7
0.4
E
8
0.4
E
8
0.6
E
7
0.5
E
8
0.5
E
8
0.4
ENE
8
0.4
E
10
0.4
E
10
0.4
E
10
0.4
E
10
0.3
E
9
0.3
E
9
0.3
E
9
0.3
E
9
0.2
E
9
0.3
SE
8
0.3
SE
9
0.3
SE
9
0.2
SSE
9
0.6
WSW
4
0.7
WSW
4
Wave Graph
Metric surfscale
Energy kJ
28
34
15
20
18
40
33
34
24
28
30
30
29
16
15
15
15
7
11
12
12
8
8
12
Wind (km/h)
15
NE
20
NNE
25
NNE
15
NE
10
E
5
SE
10
S
20
SW
20
WNW
20
NW
20
NW
15
NW
10
W
10
WSW
20
W
20
NW
15
NW
10
WNW
15
NW
15
WNW
15
WSW
20
SW
20
WSW
15
W
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross-on
on
cross
cross-off
off
off
off
cross-off
cross
cross-off
off
off
cross-off
off
cross-off
cross
cross
cross
cross-off
High Tide
3:50AM0.73m
4:30PM0.96m
5:02AM0.80m
5:35PM0.99m
6:03AM0.88m
6:31PM1.01m
Low Tide
9:43AM0.11m
11:29PM0.10m
11:08AM0.07m
00:20AM0.05m
12:13PM0.02m
cloud
cloud
light rain
rain showers
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:08
7:07
 mm
1
1
Temp °C
18
18
17
17
18
18
19
19
19
18
17
20
23
24
24
24
22
21
20
21
23
24
24
24
Feels °C
16
16
14
14
17
17
18
16
16
14
13
17
20
22
20
20
19
19
18
19
20
21
21
23
  • 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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