Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island 48 hour detailed Surf Forecast

Issued: 7 am 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
20.8°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 (24 Aug):

  • Morning surf: Morning surf (24 Aug, local time) - 2.5ft (0.7m), 7s period with SSW swell.
  • Afternoon surf: Afternoon surf (24 Aug, local time) - 3ft (0.9m), 6s period with S swell.
  • Evening surf: Evening surf (24 Aug, local time) - 3.5ft (1.0m), 6s period with S swell.

The current surf forecast for Block Island at 3PM is: 0.9m 6s primary swell from a South direction and 0.3m 11s secondary swell from a Southeast direction, 0.2m 6s secondary swell from a East direction (forecast issued at 07:00am August 24). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (24 Aug)2.5ft (0.7m)7s
Afternoon (24 Aug)3ft (0.9m)6s
Evening (24 Aug)3.5ft (1.0m)6s

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


Short Range Forecast

Some drizzle, heaviest during Mon afternoon. Warm (max 25°C on Mon afternoon, min 18°C on Tue night). Mainly fresh winds.

Monday
24
Tuesday
25
Wednesday
26
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)
1
S
6
0.7
SSW
7
0.9
S
6
0.8
S
6
0.9
S
6
1
S
6
1
S
6
1
SSW
6
0.7
S
6
0.6
SSW
6
0.4
SE
11
0.7
SW
6
0.9
SW
4
1.1
SW
5
0.9
SW
5
0.8
SW
5
0.4
SE
9
0.5
SE
9
0.6
SE
9
0.6
ESE
8
0.7
SE
9
0.8
ESE
9
0.7
SE
8
Wave Graph
Metric surfscale
Energy kJ
84
47
64
50
64
78
73
68
34
25
29
30
29
47
37
26
31
41
64
46
83
96
72
Wind (km/h)
20
WSW
15
WSW
15
SW
15
SSW
25
SSW
25
SSW
15
WSW
20
WNW
20
WNW
25
W
25
WSW
25
WSW
30
WSW
20
WSW
20
NW
20
NW
15
NW
15
NW
15
W
25
WSW
25
SW
25
SW
20
WSW
Wind State
cross
cross
cross
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross
cross
cross
cross
High Tide
6:12AM0.69m
6:36PM0.86m
6:56AM0.76m
7:13PM0.89m
7:35AM0.82m
7:47PM0.91m
Low Tide
12:06PM0.18m
00:57AM0.14m
12:50PM0.15m
1:31AM0.09m
1:30PM0.11m
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:31
7:30
7:29
 mm
1
Temp °C
23
23
23
24
25
25
23
21
20
19
20
21
22
23
21
20
18
18
20
22
23
23
23
Feels °C
21
22
21
22
22
22
21
18
17
15
16
17
18
21
19
18
16
16
19
19
19
19
21
  • 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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