Block Island (Great Salt Pond) Sea Conditions and Tide Table

Block Island (Great Salt Pond) 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 07:07 AM and sunset is at 04:20 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 7°C on Sat night, min -4°C on Sun night). Winds decreasing (strong winds from the SW on Sat night, light winds from the W by Mon night).

Days 4–6 Weather Summary

Moderate rain (total 12mm) heaviest on Tue morning, then becoming colder with a dusting of snow on Tue night. Icy conditions (max 7°C on Thu night, min 0°C on Wed afternoon). Mainly strong winds.

Days 7–9 Weather Summary

Light rain (total 6mm), mostly falling on Fri morning. Freeze-thaw conditions (max 9°C on Fri afternoon, min -7°C on Sat night). Winds decreasing (strong winds from the NW on Fri night, light winds from the NW by Sun morning).

Days 10–12 Weather Summary

Moderate rain (total 16mm), heaviest on Mon night. Freeze-thaw conditions (max 7°C on Mon night, min 0°C on Tue night). Winds decreasing (near gales from the SSW on Mon night, light winds from the ESE by Thu morning).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
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
7:41AM0.87m
8:03PM0.70m
8:22AM0.87m
8:45PM0.70m
9:02AM0.85m
9:27PM0.69m
9:44AM0.82m
10:09PM0.69m
10:27AM0.78m
10:55PM0.69m
11:13AM0.74m
11:45PM0.71m
12:04PM0.71m
00:39AM0.73m
1:01PM0.69m
1:38AM0.77m
2:01PM0.68m
2:38AM0.83m
3:02PM0.68m
3:37AM0.89m
4:03PM0.71m
4:35AM0.95m
5:00PM0.75m
5:30AM1.01m
Low Tide
1:41PM0.02m
1:26AM0.00m
2:14PM0.01m
2:05AM0.00m
2:48PM0.01m
2:45AM0.01m
3:25PM0.01m
3:28AM0.02m
4:04PM0.01m
4:15AM0.03m
4:47PM0.01m
5:08AM0.04m
5:35PM0.01m
6:07AM0.05m
6:29PM0.00m
7:14AM0.06m
7:28PM-0.01m
8:26AM0.04m
8:31PM-0.03m
9:40AM0.01m
9:36PM-0.06m
10:48AM-0.03m
10:40PM-0.09m
Wave
height (m) 
direction
period (s) 
1.4
SSE
11
1
S
10
1.4
SSW
5
1.6
S
8
1.2
S
8
1.1
W
4
0.7
NW
4
0.6
WNW
3
0.5
SSW
5
0.5
SW
3
0.5
S
7
0.6
SSW
7
1.2
ENE
5
0.7
SE
8
0.7
ESE
9
0.9
SW
4
0.7
SE
11
0.6
SE
12
0.7
SE
12
0.9
SSE
8
1.5
SW
7
0.9
S
9
0.8
NNW
4
0.5
N
3
0.3
S
8
0.2
SSE
7
0.4
SW
4
0.4
WSW
3
0.4
SW
3
0.7
SSW
3
1.9
S
6
1.2
S
7
0.8
SSW
8
0.7
WNW
4
0.7
NE
4
0.6
ESE
13
clear
part cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
mod rain
light rain
light snow
cloud
clear
part cloud
part cloud
cloud
cloud
light rain
light rain
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
heavy rain
light rain
part cloud
clear
part cloud
cloud
part cloud
clear
some clouds
some clouds
clear
clear
clear
some clouds
cloudy
cloudy
mod rain
light rain
light snow
cloudy
clear
some clouds
some clouds
cloudy
cloudy
light rain
light rain
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
heavy rain
light rain
some clouds
clear
some clouds
cloudy
some clouds
 km/h
30
WNW
25
WSW
45
SW
40
W
40
NW
45
WNW
30
NW
25
WNW
20
W
25
SSW
15
W
20
NNW
35
NNE
15
N
20
WSW
35
WSW
20
WSW
15
SSW
20
SW
30
WSW
50
NW
30
NNW
30
NNW
25
N
10
NW
15
WNW
20
W
20
W
20
WSW
30
SSW
50
SW
30
WNW
25
NNW
30
NNE
35
NNE
20
NE
 mm 
8
4
5
1
11
5
max°C
1
2
7
5
2
0
0
1
3
4
3
2
1
1
2
4
6
7
8
9
7
-3
-3
-7
-5
-2
0
2
3
7
7
5
3
2
3
4
Moonrise
7:58
8:42
9:19
9:50
10:16
10:39
11:00
11:22
11:45
12:12
12:44
1:26
Moonset
4:35
5:37
6:43
7:50
8:58
10:05
11:13
12:23
1:37
2:54
4:14
Sunrise
7:07
7:07
7:07
7:09
7:09
7:09
7:09
7:09
7:09
7:11
7:11
7:11
Sunset
4:20
4:20
4:21
4:21
4:22
4:22
4:22
4:23
4:23
4:24
4:25
4:27
Today's sea temperature in Block Island (Great Salt Pond) is
7.9° C
(Statistics for 20 Dec 1981-2005 – mean: 8.6 max: 10.3 min: 7.1°C)
Issued (local time): 12 pm Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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