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 07:05 AM and sunset is at 04:15 PM.

Days 1–3 Weather Summary

A dusting of new snow. Icy conditions (max 3°C on Sun afternoon, min -5°C on Thu night). Winds decreasing (strong winds from the NNW on Thu night, light winds from the NE by Fri night).

Days 4–6 Weather Summary

Heavy rain (total 20mm), heaviest during Sun night. Icy conditions (max 9°C on Mon afternoon, min -2°C on Tue afternoon). Winds increasing (light winds from the SSW on Sun night, near gales from the W by Tue morning).

Days 7–9 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Wed night, min -6°C on Fri night). Mainly fresh winds.

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 4°C on Sun night, min -6°C on Sat night). Winds increasing (light winds from the W on Sun morning, strong winds from the N by Tue night).

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tue
6
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
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
00:07AM0.89m
12:17PM1.08m
1:02AM0.91m
1:11PM1.08m
1:55AM0.91m
2:04PM1.06m
2:46AM0.92m
2:57PM1.03m
Low Tide
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
6:00AM-0.03m
6:46PM-0.17m
6:55AM-0.05m
7:38PM-0.17m
7:48AM-0.05m
8:28PM-0.15m
8:40AM-0.04m
Wave
height (m) 
direction
period (s) 
0.8
N
4
0.5
ENE
10
0.4
ENE
10
0.8
E
12
0.8
NE
5
0.5
E
12
0.6
N
5
0.3
ENE
12
0.5
SW
3
0.9
SSE
4
1
SSW
4
1.9
WSW
5
2
WSW
6
1.9
WSW
6
1.6
WSW
5
1.3
WSW
5
1.1
WSW
4
0.7
WSW
4
0.7
W
4
0.9
WNW
4
0.9
W
4
0.7
W
4
0.7
W
4
0.6
WNW
4
0.5
WNW
3
0.6
W
4
0.6
WNW
3
0.2
E
10
0.2
WSW
2
0.7
SW
4
0.9
SW
4
0.8
W
4
0.8
NW
4
1.2
NNE
4
1.3
NNE
5
cloud
cloud
light snow
cloud
clear
clear
clear
part cloud
mod rain
mod rain
light rain
rain showers
part cloud
cloud
part cloud
part cloud
clear
cloud
cloud
part cloud
clear
clear
part cloud
clear
clear
cloud
clear
clear
clear
cloud
part cloud
clear
part cloud
cloud
cloud
cloudy
cloudy
light snow
cloudy
clear
clear
clear
some clouds
mod rain
mod rain
light rain
rain shwrs
some clouds
cloudy
some clouds
some clouds
clear
cloudy
cloudy
some clouds
clear
clear
some clouds
clear
clear
cloudy
clear
clear
clear
cloudy
some clouds
clear
some clouds
cloudy
cloudy
 km/h
30
N
15
N
15
NE
25
NNE
25
N
15
NW
20
WNW
10
W
15
WSW
30
SSE
30
SSW
45
WSW
55
W
50
W
45
W
35
W
30
WSW
25
W
20
WNW
30
WNW
30
W
25
W
25
W
25
WNW
25
WNW
25
W
25
WNW
10
W
15
SW
25
SW
30
WSW
30
WNW
35
NNW
45
N
45
N
 mm 
9
7
2
2
max°C
-5
-4
-2
-1
-2
-2
1
3
5
8
9
7
-1
-1
-1
1
1
1
-2
-2
-3
-3
-2
-4
-4
-2
-3
-5
-2
4
4
3
-1
-5
-5
Moonrise
10:55
11:16
11:39
12:05
12:37
1:19
2:12
3:19
4:35
5:55
7:12
8:25
Moonset
11:07
12:18
1:32
2:49
4:10
5:29
6:40
7:39
8:24
8:59
9:26
Sunrise
7:05
7:05
7:05
7:07
7:07
7:07
7:07
7:07
7:07
7:07
7:07
7:07
Sunset
4:15
4:16
4:16
4:17
4:19
4:20
4:21
4:22
4:22
4:22
4:23
4:24
Today's sea temperature in South Yarmouth is
4.8° C
(Statistics for 26 Dec 1981-2005 – mean: 7.3 max: 9.2 min: 5.3°C)
Issued (local time): 12 am Friday 26 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest