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Surf Forecasts:

Block Island surfForecast / Rhode Island / USA

information circle48hr Weather and Surf, issued 6 am Friday 21 Nov 2025 EST
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
12.0° C
 (Which is slightly warmer than usual)

How big are the waves at Block Island today?

The current surf forecast for Block Island at 11AM is: 0.2m 6s primary swell from a South direction and 0.2m 5s secondary swell from a East direction, 0.3m 2s secondary swell from a Southwest direction (forecast issued at 06:00am November 21). The wind direction is predicted to be cross-shore.

Time (EST) & DateWave HeightWave Period
Morning (21 Nov)0.5ft (0.2m)6s
Afternoon (21 Nov)2.5ft (0.7m)3s
Evening (21 Nov)3ft (0.9m)5s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Friday
21
Saturday
22
Sunday
23
Mon
24
4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM
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
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.3
SSW
0.2
SSE
0.2
S
0.2
SSE
0.9
SW
1
SW
0.9
SW
0.8
SW
0.7
SW
0.5
SW
0.3
E
0.3
E
0.3
E
0.2
E
0.2
E
0.2
E
0.3
SSW
0.4
S
0.6
S
0.5
S
0.5
S
0.9
WSW
0.4
SSW
0.5
SSW
Period(s) (?)676644554466766778777476
Wave
Graph
(?)Metric surfscale
Energy kJ (?)753321403725209778333918382626241522
Wind
(km/h)
5
WNW
10
SW
20
SW
25
WSW
35
WSW
30
WSW
20
WSW
20
WSW
15
W
15
N
15
NNE
10
NNW
20
NW
30
NNW
25
NNW
20
NNW
10
N
5
NNW
10
WSW
20
WSW
25
WSW
30
WSW
35
W
35
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		crosscrosscrosscrosscrosscrosscrosscross-
off		offcross-
off		offoffoffoffoffoffoffcrosscrosscrosscrosscross-
off		cross-
off
High Tide
/ height (m)
8:08AM
0.92
8:21PM
0.68
8:40AM
0.89
8:56PM
0.66
9:12AM
0.86
9:33PM
0.64
Low Tide
/ height (m)
1:07AM
0.06
2:30PM
0.07
1:40AM
0.07
3:06PM
0.09
2:17AM
0.09
3:43PM
0.11
Friday
21
Saturday
22
Sunday
23
Mon
24
Sunrise-6:39-------6:41-------6:43------
Sunset----4:22-------4:22-------4:21---
clear
part cloud
cloud
cloud
clear
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
Rain (mm)
---------211------------
Temp. °C568910101110108779754334579107
Feels °C (?)2233347674344-1-2-2-200-1012-2
  • 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

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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.

View detailed surf forecast for Block Island at:
surf-forecast.com

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