Block Island surfForecast / Rhode Island / USA

information circle48hr Weather and Surf, issued 7 am Monday 23 Mar 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Block Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Block Island sea temperature is
3.6° C
(Which is 1.3°C colder than average for this time of year)

How big are the waves at Block Island today?

The current surf forecast for Block Island at 1PM is: 1.1m 7s primary swell from a South direction and 0.6m 9s secondary swell from a Southeast direction (forecast issued at 07:00am March 23). An open ocean swell of 1.2m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (23 Mar)3ft (0.9m)7s
Afternoon (23 Mar)3.5ft (1.0m)8s
Evening (23 Mar)3.5ft (1.0m)8s

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


Updates in  hr  min  s Forecast update imminent
Monday
23
Tuesday
24
Wednesday
25
Thu
26
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
0
0
0
0
0
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.1
SSW
0.9
SSW
1.1
S
1
S
1
S
1
S
0.9
S
0.8
S
0.8
SSW
0.7
SSW
0.6
SSW
0.5
E
0.7
E
0.6
E
0.5
E
0.5
E
1.2
WSW
0.4
E
0.4
E
0.3
E
0.3
E
0.9
SW
0.9
SSW
0.9
SSW
Period(s) (?)777888888889999959101010444
Wave
Graph
(?)Metric surfscale
Energy kJ (?)121821271101131161038281674739856242516128291718313535
Wind
(km/h)
35
NE
40
NE
40
NNE
35
NNE
30
N
25
N
20
NNW
35
NNW
35
NNW
35
NNW
25
N
10
E
20
S
25
SSW
35
SW
35
SW
30
W
15
WNW
10
WSW
15
SW
20
SSW
25
SSW
25
SSW
25
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffcross-
off
cross-
on
oncross-
on
cross-
on
cross-
on
cross-
off
cross-
off
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
11:43AM
0.75
12:07AM
0.93
12:41PM
0.69
1:11AM
0.86
1:50PM
0.65
Low Tide
/ height (m)
5:49AM
-0.05
5:17PM
-0.06
7:03AM
0.01
6:14PM
-0.01
8:28AM
0.05
7:30PM
0.05
Monday
23
Tuesday
24
Wednesday
25
Thu
26
Sunrise-6:45-------6:43-------6:41------
Sunset----7:00-------7:01-------7:02---
light rain
heavy rain
light snow
cloud
cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
clear
cloud
cloud
cloud
cloud
part cloud
clear
cloud
cloud
cloud
cloud
cloud
Rain (mm)
211----------------------
Temp. °C32221221-1-113223333445567
Feels °C (?)-5-7-7-6-7-5-4-8-10-10-6-1-5-6-6-6-5-2-1-2-2-2-11
  • 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

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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