Block Island (Old Harbor) Sea Conditions and Tide Table

Block Island (Old Harbor) 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 05:11 AM and sunset is at 08:21 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 21°C on Tue morning, min 15°C on Sun morning). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Fri afternoon. Warm air temperatures (max 26°C on Fri afternoon, min 20°C on Fri night). Winds decreasing (fresh winds from the SW on Thu afternoon, calm by Fri night).

Days 7–9 Weather Summary

Light rain (total 9mm), mostly falling on Mon morning. Warm (max 22°C on Sat night, min 16°C on Sun night). Winds increasing (light winds from the E on Sat morning, strong winds from the SW by Mon night).

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Tue afternoon. Warm (max 25°C on Tue night, min 20°C on Tue night). Winds decreasing (strong winds from the SW on Tue afternoon, light winds from the WSW by Thu night).

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
4:20PM0.85m
4:30AM0.68m
5:08PM0.90m
5:23AM0.69m
5:53PM0.95m
6:11AM0.72m
6:37PM1.00m
6:55AM0.77m
7:20PM1.05m
7:39AM0.81m
8:03PM1.09m
8:24AM0.85m
8:48PM1.10m
9:11AM0.88m
Low Tide
9:39AM0.19m
10:54PM0.20m
10:16AM0.17m
11:45PM0.16m
10:58AM0.14m
00:35AM0.12m
11:42AM0.11m
1:21AM0.09m
12:29PM0.07m
2:05AM0.05m
1:16PM0.04m
2:47AM0.03m
2:03PM0.02m
3:27AM0.01m
2:50PM0.01m
Wave
height (m) 
direction
period (s) 
0.6
SSE
8
0.6
SSE
8
0.5
SSE
7
0.6
SSE
7
0.6
SSE
7
0.7
S
5
0.7
SSW
4
0.7
SSW
4
0.6
S
6
0.5
S
4
0.7
SSW
4
0.6
S
5
0.7
S
5
0.9
S
6
0.7
S
6
0.7
SE
8
0.7
SE
8
0.6
SSE
7
0.5
SE
7
0.4
SSE
7
0.4
SSE
7
0.7
ESE
4
0.9
SE
5
0.8
SE
5
0.6
S
6
0.7
S
6
1.5
S
7
1.2
S
8
1.3
S
7
0.8
S
7
0.7
S
7
0.7
S
7
0.6
S
7
0.6
S
7
0.6
SSE
6
0.5
SSE
7
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
rain showers
part cloud
part cloud
rain showers
part cloud
clear
rain showers
light rain
part cloud
rain showers
cloud
rain showers
clear
clear
clear
part cloud
part cloud
cloud
rain showers
clear
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain shwrs
rain shwrs
some clouds
some clouds
rain shwrs
some clouds
clear
rain shwrs
light rain
some clouds
rain shwrs
cloudy
rain shwrs
clear
clear
clear
some clouds
some clouds
cloudy
rain shwrs
 km/h
10
ENE
15
SSE
20
S
20
SSW
25
SSW
25
SW
25
SW
25
SW
20
SW
25
SW
25
SW
20
SW
30
SW
30
SW
25
WSW
25
WSW
25
SW
15
SW
5
E
15
S
15
SW
30
NE
35
E
20
ESE
20
SSW
25
SSW
40
SW
30
SW
40
SW
15
WNW
15
WSW
25
SW
15
SSW
20
SSW
15
SW
20
SW
 mm 
1.0
3
2.0
1.0
3
3
1.0
1.0
max°C
16
18
17
19
20
20
21
21
21
21
22
22
22
24
23
24
26
23
20
21
22
20
18
18
21
21
22
21
23
25
22
23
23
22
22
22
Moonrise
3:09
4:13
5:19
6:28
7:36
8:40
9:36
10:23
11:00
11:30
11:56
Moonset
1:44
2:04
2:27
2:56
3:32
4:17
5:14
6:22
7:37
8:54
10:10
11:25
Sunrise
5:11
5:13
5:13
5:13
5:13
5:13
5:13
5:13
5:13
5:13
5:15
5:15
Sunset
8:21
8:21
8:21
8:22
8:22
8:22
8:22
8:22
8:22
8:22
8:22
8:22
Today's sea temperature in Block Island (Old Harbor) is 16.0 °C (Statistics for 16 Jun 1981-2005 – mean: 16.7 max: 18.4 min: 14.5°C)
Nearest