Block Island (SW end), Block Island Sound Sea Conditions and Tide Table

Block Island (SW end), Block Island Sound Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 06:56 AM and sunset is at 04:16 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 5°C on Sat morning, min -8°C on Fri morning). Winds increasing (calm on Fri night, strong winds from the NNW by Sun night).

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Wed afternoon. Icy conditions (max 11°C on Wed afternoon, min -6°C on Mon night). Winds increasing (light winds from the N on Mon night, near gales from the SW by Wed afternoon).

Days 7–9 Weather Summary

Light rain (total 6mm), mostly falling on Fri morning. Freeze-thaw conditions (max 10°C on Fri morning, min -4°C on Fri night). Winds decreasing (near gales from the WSW on Fri morning, light winds from the NW by Sat morning).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Sun morning, min -6°C on Wed morning). Winds decreasing (strong winds from the WNW on Sun morning, light winds from the NW by Tue morning).

Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
7:29AM1.16m
7:52PM0.85m
8:22AM1.13m
8:46PM0.84m
9:14AM1.07m
9:42PM0.83m
10:08AM0.98m
10:40PM0.80m
11:02AM0.89m
11:42PM0.78m
11:59AM0.80m
00:46AM0.77m
1:00PM0.72m
1:49AM0.77m
2:02PM0.66m
2:49AM0.77m
3:02PM0.62m
3:44AM0.79m
3:58PM0.61m
4:33AM0.81m
4:48PM0.61m
5:18AM0.84m
5:33PM0.62m
6:00AM0.85m
Low Tide
2:11PM-0.12m
1:32AM-0.17m
3:05PM-0.10m
2:27AM-0.13m
4:00PM-0.07m
3:27AM-0.07m
4:58PM-0.04m
4:36AM0.01m
5:56PM-0.01m
5:56AM0.08m
6:53PM0.02m
7:12AM0.12m
7:48PM0.04m
8:21AM0.14m
8:39PM0.06m
9:21AM0.14m
9:25PM0.08m
10:14AM0.12m
10:07PM0.08m
11:01AM0.09m
10:44PM0.08m
11:44AM0.07m
11:17PM0.06m
Wave
height (m) 
direction
period (s) 
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
9
0.3
SE
9
0.5
SSE
8
0.6
SSE
7
0.6
SE
8
0.7
S
5
1.1
NNW
4
0.8
N
4
0.3
SE
8
0.2
ESE
9
0.9
SSW
4
1.3
SW
5
1.3
SSW
5
1.8
S
6
1.5
SSW
5
1.6
SSE
9
1.5
S
9
0.9
SSE
9
1.6
SSW
5
1.9
S
9
1.3
S
9
0.7
S
10
0.6
S
9
0.6
S
8
1
WSW
4
0.9
W
4
0.5
WNW
3
0.4
SSW
5
0.4
SSW
5
0.4
SE
10
0.3
SE
10
0.3
SE
10
0.4
SE
10
part cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
light rain
clear
part cloud
clear
part cloud
light rain
light rain
clear
part cloud
cloud
cloud
cloud
clear
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
cloudy
cloudy
some clouds
clear
clear
some clouds
some clouds
cloudy
some clouds
cloudy
light rain
clear
some clouds
clear
some clouds
light rain
light rain
clear
some clouds
cloudy
cloudy
cloudy
clear
some clouds
cloudy
some clouds
clear
clear
some clouds
some clouds
 km/h
5
E
5
SW
10
NNE
10
ESE
15
WSW
20
NW
10
NW
10
SW
30
W
40
NNW
35
N
15
N
20
SW
40
SSW
40
WSW
40
SSW
50
S
45
WSW
45
W
50
WNW
25
WNW
50
SSW
45
WSW
35
NW
15
NNW
15
W
20
WSW
40
W
35
NW
25
WNW
25
WNW
25
NW
15
NW
15
NW
15
WNW
20
NNW
 mm 
2
4
2
max°C
-5
-1
1
5
5
4
3
5
5
-4
-4
-4
1
6
8
10
11
8
3
2
4
10
8
1
-1
1
2
1
-1
-2
-2
-1
-3
-2
-1
-3
Moonrise
4:43
5:56
7:13
8:29
9:42
10:50
11:54
12:57
1:59
3:01
4:03
Moonset
8:01
9:06
9:58
10:37
11:07
11:32
11:53
12:13
12:32
12:53
1:15
1:42
Sunrise
6:56
6:56
6:58
6:58
7:00
7:00
7:01
7:01
7:03
7:03
7:03
7:05
Sunset
4:16
4:16
4:16
4:16
4:16
4:16
4:16
4:16
4:16
4:17
4:17
4:17
Today's sea temperature in Block Island (SW end), Block Island Sound is
10.9° C
(Statistics for 05 Dec 1981-2005 – mean: 10.1 max: 13.1 min: 8.5°C)
Issued (local time): 12 pm Friday 05 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest