Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island 48 hour detailed Surf Forecast

Issued: 1 pm 29 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
20.4° 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 (29 Jul):

  • Morning surf: Morning surf (29 Jul, local time) - 6ft (1.9m), 6s period with SSE swell.
  • Afternoon surf: Afternoon surf (29 Jul, local time) - 4.5ft (1.3m), 6s period with SSE swell.
  • Evening surf: Evening surf (29 Jul, local time) - 4.5ft (1.4m), 7s period with SSE swell.

The current surf forecast for Block Island at 8PM is: 1.3m 7s primary swell from a South-southeast direction and 0.5m 6s secondary swell from a East direction (forecast issued at 01:00pm July 29). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (29 Jul)6ft (1.9m)6s
Afternoon (29 Jul)4.5ft (1.3m)6s
Evening (29 Jul)4.5ft (1.4m)7s

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


Short Range Forecast

Moderate rain (total 11mm), heaviest on Thu morning. Warm (max 23°C on Sat morning, min 18°C on Thu afternoon). Winds decreasing (fresh winds from the N on Thu afternoon, light winds from the WNW by Fri morning).

Wed
29
Thursday
30
Friday
31
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
2
1
1
2
1
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
SSE
6
1.3
SSE
6
1.2
SSE
6
1.3
SSE
7
1.4
SSE
7
1.4
SSE
7
1.4
SSE
8
1.2
S
7
1.3
SSE
8
1.3
S
8
1.2
S
8
1.1
S
8
1
S
8
1
S
8
0.9
S
8
0.8
S
8
0.9
SSE
9
0.9
SSE
8
0.8
S
8
0.9
S
8
0.9
S
8
Wave Graph
Metric surfscale
Energy kJ
272
118
121
152
181
208
204
159
252
228
190
157
130
130
102
80
126
118
84
105
108
Wind (km/h)
35
SE
20
SSE
15
SSE
15
ESE
15
ENE
15
NNE
15
NNE
15
NNE
20
N
25
N
30
N
30
N
25
N
25
NNW
20
N
15
N
5
WNW
15
WSW
20
SSW
20
SW
20
SW
Wind State
on
on
on
cross-on
cross
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
off
off
off
off
cross-off
cross
cross-on
cross-on
cross-on
High Tide
8:42AM0.79m
8:52PM0.93m
9:17AM0.82m
9:22PM0.93m
9:50AM0.84m
9:54PM0.92m
Low Tide
2:24PM0.11m
3:15AM0.05m
3:01PM0.11m
3:42AM0.04m
3:37PM0.11m
rain showers
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
light rain
cloud
cloud
cloud
cloud
cloud
cloud
clear
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:06
8:05
8:04
 mm
13
2
2
1
1
2
3
Temp °C
21
22
21
21
20
20
20
19
19
19
18
18
18
18
18
19
20
21
21
22
22
Feels °C
17
22
21
21
21
21
20
19
18
17
14
14
15
15
16
19
21
20
19
21
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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