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 07:03 AM and sunset is at 04:13 PM.

Days 1–3 Weather Summary

A dusting of snow turning to light rain (total 6mm) on Tue afternoon. Icy conditions (max 4°C on Tue afternoon, min -3°C on Sun night). Winds increasing (light winds from the W on Mon night, near gales from the NW by Wed morning).

Days 4–6 Weather Summary

A dusting of new snow. Icy conditions (max 4°C on Thu afternoon, min -4°C on Fri afternoon). Winds increasing (light winds from the WNW on Wed night, strong winds from the NE by Fri night).

Days 7–9 Weather Summary

Moderate rain (total 11mm), heaviest on Sun afternoon. Freeze-thaw conditions (max 7°C on Sun afternoon, min -8°C on Mon night). Winds increasing (light winds from the ESE on Sat night, near gales from the WNW by Sun night).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Fri afternoon, min -6°C on Tue night). Winds increasing (moderate winds from the WNW on Wed afternoon, strong winds from the WNW by Thu afternoon).

Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Fri
2
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
Wave Height Map
High Tide
2:17PM0.91m
2:58AM0.79m
2:58PM0.91m
3:38AM0.80m
3:41PM0.90m
4:21AM0.81m
4:27PM0.88m
5:05AM0.83m
5:17PM0.87m
5:53AM0.86m
6:11PM0.85m
6:44AM0.89m
7:09PM0.84m
7:37AM0.93m
8:10PM0.83m
8:33AM0.97m
9:11PM0.84m
9:29AM1.01m
10:10PM0.84m
10:24AM1.04m
11:10PM0.87m
11:21AM1.07m
Low Tide
8:05AM0.11m
8:41PM-0.01m
8:47AM0.10m
9:22PM-0.01m
9:31AM0.10m
10:04PM-0.01m
10:18AM0.09m
10:48PM-0.00m
11:08AM0.09m
11:35PM0.01m
12:03PM0.07m
00:26AM0.02m
1:00PM0.04m
1:20AM0.02m
2:00PM0.00m
2:16AM0.02m
3:00PM-0.04m
3:13AM0.01m
4:00PM-0.09m
4:08AM0.01m
4:56PM-0.12m
5:05AM-0.02m
5:52PM-0.15m
Wave
height (m) 
direction
period (s) 
0.9
NW
4
0.5
NW
3
0.5
W
3
0.4
WSW
3
0.4
SE
4
0.7
WSW
4
1.3
NW
4
1.3
NNE
6
0.8
ENE
9
0.8
ENE
10
1.1
SSE
6
0.9
NNE
5
0.6
E
11
0.8
ENE
4
1.4
ENE
5
1.3
ENE
6
1
ENE
5
0.6
E
8
0.8
ESE
5
1.1
SSE
4
1.5
WNW
5
1.6
W
5
1.5
W
5
1.4
W
5
1.4
W
5
1.2
WNW
4
0.8
WNW
4
0.6
WNW
3
0.5
WNW
3
0.7
W
4
1.1
NW
4
1.2
W
4
0.9
WNW
4
0.6
WNW
3
0.4
NW
3
clear
clear
cloud
cloud
light snow
rain showers
light rain
cloud
part cloud
cloud
part cloud
part cloud
cloud
light snow
light snow
part cloud
cloud
part cloud
cloud
heavy rain
clear
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
cloudy
cloudy
light snow
rain shwrs
light rain
cloudy
some clouds
cloudy
some clouds
some clouds
cloudy
light snow
light snow
some clouds
cloudy
some clouds
cloudy
heavy rain
clear
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
clear
some clouds
some clouds
clear
 km/h
35
NW
20
NW
20
W
15
WSW
20
SSE
25
W
55
NW
35
N
15
WNW
25
WSW
30
W
35
NW
25
NNE
25
ENE
40
NE
35
NE
25
NE
10
ESE
25
SSE
35
S
55
WNW
45
W
45
WNW
40
W
45
W
35
WNW
30
WNW
25
NW
20
WNW
25
W
40
WNW
40
WNW
30
WNW
30
NW
20
WNW
 mm 
3
2
1
11
max°C
-2
0
2
2
4
4
2
2
1
3
4
2
-1
-3
0
0
0
0
4
7
4
-5
-6
-5
-5
-5
-6
-4
-2
-1
-1
0
-2
0
1
Moonrise
9:15
9:45
10:11
10:34
10:55
11:16
11:39
12:05
12:37
1:19
2:12
3:19
Moonset
6:36
7:43
8:51
9:59
11:07
12:18
1:32
2:49
4:10
5:29
6:40
Sunrise
7:03
7:05
7:05
7:05
7:05
7:05
7:05
7:07
7:07
7:07
7:07
7:07
Sunset
4:13
4:14
4:15
4:15
4:15
4:16
4:16
4:17
4:19
4:20
4:21
4:22
Today's sea temperature in South Yarmouth is
5.5° C
(Statistics for 22 Dec 1981-2005 – mean: 7.7 max: 9.5 min: 6.2°C)
Issued (local time): 12 am Monday 22 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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