South Yarmouth Sea Conditions and Tide Table

South Yarmouth 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 — and sunset is at 06:39 PM.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 17°C on Mon night, min 13°C on Tue night). Mainly strong winds.

Days 5–7 Weather Summary

Heavy rain (total 47mm), heaviest during Fri night. Cool air temperatures (max 17°C on Sat night, min 13°C on Thu night). Winds increasing (strong winds from the NE on Thu night, gales from the NNE by Fri night).

Days 8–10 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Very mild (max 17°C on Wed afternoon, min 14°C on Mon morning). Winds decreasing (strong winds from the N on Sun night, calm by Tue night).

Days 11–13 Weather Summary

Moderate rain (total 13mm), heaviest on Thu morning. Warm (max 20°C on Thu afternoon, min 12°C on Fri morning). Winds increasing (light winds from the N on Thu afternoon, near gales from the NNE by Sat afternoon).

Days 14–17 Weather Summary

Mostly dry. Very mild (max 14°C on Sat night, min 12°C on Sun morning). Winds decreasing (strong winds from the NE on Sat night, light winds from the N by Wed afternoon).

Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
Wed
7
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
9:59PM0.83m
10:41AM0.75m
10:51PM0.85m
11:27AM0.80m
11:39PM0.88m
12:09PM0.84m
00:22AM0.91m
12:47PM0.90m
1:04AM0.94m
1:24PM0.94m
1:44AM0.95m
2:01PM0.98m
2:26AM0.96m
2:40PM1.01m
3:09AM0.95m
3:22PM1.03m
3:56AM0.92m
4:07PM1.02m
4:46AM0.89m
4:57PM1.01m
5:41AM0.85m
5:53PM0.98m
6:42AM0.82m
6:56PM0.95m
7:48AM0.80m
8:04PM0.93m
8:56AM0.81m
Low Tide
4:22AM0.12m
4:31PM0.16m
5:10AM0.09m
5:21PM0.12m
5:53AM0.05m
6:06PM0.06m
6:32AM0.01m
6:50PM0.01m
7:11AM-0.02m
7:32PM-0.04m
7:51AM-0.03m
8:15PM-0.07m
8:31AM-0.04m
8:58PM-0.10m
9:13AM-0.03m
9:44PM-0.10m
9:58AM-0.01m
10:33PM-0.09m
10:46AM0.02m
11:27PM-0.06m
11:40AM0.05m
00:25AM-0.03m
12:39PM0.09m
1:28AM-0.00m
1:44PM0.11m
2:34AM0.01m
2:52PM0.10m
Wave
Height (m)
Direction
Period (s)
1
ENE
5
1.3
ENE
5
1.3
ENE
6
1.3
E
6
1.7
E
7
1.7
E
8
1.9
E
10
1.9
E
10
1.9
E
11
1.9
E
12
2
E
12
2
E
12
2.5
ENE
12
2.3
NE
8
2.1
ENE
12
1.8
NE
7
1.8
NE
7
1.7
NE
6
1.4
NE
6
1.3
NE
6
1.1
NE
6
0.9
ENE
8
0.7
ENE
8
0.6
ENE
8
0.6
E
9
0.5
E
8
0.5
E
8
0.6
ESE
4
0.6
SE
5
0.4
ENE
8
0.7
N
4
0.5
NE
4
0.4
E
12
0.9
N
4
1.8
NE
6
2.1
NE
7
1.7
ENE
10
1.6
ENE
11
1.6
E
11
1.6
ENE
10
1.4
ENE
11
1.4
ENE
10
1.5
ENE
10
1.6
NE
6
1.4
ENE
11
1.1
ENE
11
0.9
ENE
11
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
light rain
heavy rain
mod rain
light rain
light rain
light rain
cloud
light rain
cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
light rain
clear
clear
clear
part cloud
rain showers
light rain
light rain
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
cloudy
cloudy
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
some clouds
cloudy
light rain
heavy rain
mod rain
light rain
light rain
light rain
cloudy
light rain
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
clear
clear
some clouds
light rain
clear
clear
clear
some clouds
rain shwrs
light rain
light rain
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
some clouds
cloudy
cloudy
some clouds
some clouds
km/h
25
NE
35
NE
35
NE
35
ENE
40
NE
35
NE
40
ENE
40
NE
40
NE
45
NE
50
NNE
50
NNE
65
NNE
60
N
55
N
55
N
55
N
50
N
45
N
40
N
35
NNE
25
N
20
N
10
NE
0
SW
10
ESE
15
SSE
20
S
20
NW
5
N
25
N
25
NNW
15
NNE
40
N
55
NNE
55
NNE
40
NE
45
NNE
40
NNE
40
NNE
40
NNE
40
NNE
40
N
40
NNE
35
NNE
25
N
25
N
 mm
5
30
8
1
1
2
2
3
3
3
4
max °C
17
15
14
14
14
13
14
14
14
15
15
14
14
13
15
17
14
15
16
14
14
16
16
16
15
16
17
17
17
20
19
13
14
14
14
13
14
13
12
14
13
13
14
12
13
14
14
Moonrise
4:48
5:13
5:35
5:56
6:18
6:41
7:09
7:42
8:24
9:16
10:20
11:33
12:49
2:04
3:17
Moonset
1:54
3:00
4:07
5:14
6:23
7:34
8:47
10:03
11:20
12:34
1:40
2:34
3:17
3:51
4:19
Sunrise
6:26
6:28
6:28
6:30
6:31
6:31
6:33
6:33
6:35
6:37
6:37
6:39
6:39
6:41
6:41
6:43
Sunset
6:39
6:37
6:37
6:35
6:32
6:30
6:30
6:28
6:25
6:24
6:22
6:21
6:19
6:17
6:15
6:14
Today's sea temperature in South Yarmouth is
20.6°C
(Statistics for 21 Sep 1981-2005 – mean: 17.9 max: 19.6 min: 14.7°C)
Issued (local time): 7 pm Monday 21 Sep 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest