Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island 48 hour detailed Surf Forecast

Issued: 7 pm 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
20.5° C
1.4° 

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 (07 Aug):

  • Morning surf: Morning surf (07 Aug, local time) - 3.5ft (1.0m), 6s period with SSW swell.
  • Afternoon surf: Afternoon surf (07 Aug, local time) - 2.5ft (0.8m), 6s period with SSW swell.
  • Evening surf: Evening surf (07 Aug, local time) - 3ft (0.9m), 6s period with SSW swell.

The current surf forecast for Block Island at 2AM is: 1.1m 6s primary swell from a South-southwest direction and 0.4m 7s secondary swell from a Southeast direction, 0.1m 10s secondary swell from a East direction (forecast issued at 07:00pm August 06). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (07 Aug)3.5ft (1.0m)6s
Afternoon (07 Aug)2.5ft (0.8m)6s
Evening (07 Aug)3ft (0.9m)6s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sat morning. Warm (max 28°C on Fri afternoon, min 24°C on Sat morning). Mainly fresh winds.

Thu
6
Friday
7
Saturday
8
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
5
1
SSW
6
1
SSW
6
1.1
SSW
6
1.3
SSW
6
1.2
SSW
6
1
SW
6
0.8
SSW
6
0.8
SSW
6
0.9
SSW
6
0.9
SSW
6
1
SSW
6
1.1
SW
6
1.1
SW
6
0.9
SSW
6
0.9
SSW
6
1
SSW
6
1.3
SSW
6
1.5
SSW
6
Wave Graph
Metric surfscale
Energy kJ
46
58
58
77
112
90
61
40
40
49
53
63
72
77
51
51
68
104
159
Wind (km/h)
25
SW
20
SW
20
SW
20
WSW
15
WSW
15
WSW
15
WSW
20
SW
25
SW
25
SW
25
SW
25
WSW
15
WSW
20
SW
20
WSW
25
SW
30
SW
25
SW
15
S
Wind State
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross
cross-on
High Tide
2:09PM0.95m
2:40AM0.71m
3:20PM0.97m
3:52AM0.71m
4:35PM1.00m
Low Tide
9:20PM0.16m
8:19AM0.08m
10:36PM0.14m
9:31AM0.06m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
rain showers
clear
clear
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:57
7:55
7:54
 mm
1
1
Temp °C
26
26
25
25
27
27
27
28
28
28
26
25
25
24
24
24
24
24
24
Feels °C
26
26
26
27
28
29
28
29
28
27
26
25
27
24
25
24
22
24
26
  • 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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