Block Island surfForecast / Rhode Island / USA

information circle48hr Weather and Surf, issued 7 pm Sunday 22 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
3.1° C
(Which is 1.7°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 1AM is: 1.6m 7s primary swell from a South direction and 0.1m 7s secondary swell from a East direction (forecast issued at 07:00pm March 22). The wind direction is predicted to be offshore and the swell rating is 2.

Time (EDT) & DateWave HeightWave Period
Morning (23 Mar)3.5ft (1.1m)7s
Afternoon (23 Mar)3.5ft (1.0m)8s
Evening (23 Mar)3ft (0.9m)8s

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


Updates in  hr  min  s Forecast update imminent
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
Rating
(10 max)
0
1
1
2
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.4
S
1.2
SSE
0.7
SE
1.6
S
1.3
SSE
1.1
SSW
1.1
S
1.1
S
1
S
0.9
S
0.9
S
0.9
S
0.7
SSW
0.7
SSW
0.6
SSW
0.6
ENE
0.6
E
0.6
E
0.5
E
1.2
SW
1.3
WSW
1.1
SW
0.9
SW
0.8
SW
Period(s) (?)668787778888888910101055555
Wave
Graph
(?)Metric surfscale
Energy kJ (?)13810975247186108127131111909095616750656765446083603633
Wind
(km/h)
20
SSW
5
S
5
ESE
15
NE
35
NE
35
NNE
40
NNE
35
NNE
30
N
20
N
15
N
20
NNW
35
NNW
30
NNW
20
NNE
10
E
20
SSE
25
SSW
35
SW
35
SW
35
WSW
20
W
10
WSW
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
glassglasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffcross-
off
cross-
on
oncross-
on
cross-
on
cross-
on
crosscross-
off
crosscross-
on
High Tide
/ height (m)
11:13PM
0.98
11:43AM
0.75
12:07AM
0.93
12:41PM
0.69
1:11AM
0.86
1:50PM
0.65
Low Tide
/ height (m)
4:30PM
-0.11
5:49AM
-0.05
5:17PM
-0.06
7:03AM
0.01
6:14PM
-0.01
8:28AM
0.05
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Sunrise-----6:45-------6:43-------6:41--
Sunset7:00-------7:00-------7:01-------
cloud
cloud
light rain
light rain
light rain
light snow
light snow
cloud
cloud
clear
cloud
part cloud
clear
clear
part cloud
part cloud
clear
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
Rain (mm)
--433-------------------
Temp. °C778732221211-1-11222233335
Feels °C (?)2674-6-7-8-7-6-4-4-5-10-10-5-3-4-5-7-6-5-3-20
  • 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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