Southwest Harbor Sea Conditions and Tide Table

Southwest 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 07:07 AM and sunset is at 03:57 PM.

Days 1–3 Weather Summary

A light covering of new snow, mostly falling on Tue night. Air temperatures will be below freezing (max 0°C on Wed night, min -12°C on Thu night). Winds decreasing (strong winds from the E on Tue night, light winds from the N by Wed night).

Days 4–6 Weather Summary

Light rain (total 8mm), mostly falling on Mon morning. Icy conditions (max 7°C on Mon morning, min -11°C on Fri night). Winds increasing (light winds from the WNW on Sun afternoon, strong winds from the W by Mon afternoon).

Days 7–9 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Wed night, min -10°C on Thu morning). Winds decreasing (strong winds from the W on Tue morning, light winds from the NNW by Thu morning).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Sun night, min -20°C on Fri night). Winds decreasing (strong winds from the NW on Thu night, calm by Sat night).

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sun
4
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
1:11PM3.21m
1:51AM2.89m
1:56PM3.16m
2:36AM2.97m
2:46PM3.11m
3:23AM3.06m
3:41PM3.04m
4:15AM3.17m
4:41PM2.98m
5:11AM3.29m
5:44PM2.96m
6:08AM3.44m
6:50PM2.98m
7:07AM3.58m
7:52PM3.01m
8:05AM3.67m
8:53PM3.09m
9:03AM3.79m
9:50PM3.18m
9:59AM3.86m
10:45PM3.25m
10:54AM3.86m
Low Tide
7:10AM0.43m
7:44PM0.07m
7:55AM0.40m
8:27PM0.08m
8:46AM0.36m
9:14PM0.10m
9:41AM0.30m
10:04PM0.13m
10:41AM0.21m
10:59PM0.15m
11:44AM0.09m
11:58PM0.16m
12:48PM-0.06m
00:57AM0.13m
1:50PM-0.23m
1:56AM0.11m
2:49PM-0.34m
2:55AM0.03m
3:46PM-0.46m
3:51AM-0.05m
4:40PM-0.52m
4:47AM-0.09m
5:32PM-0.52m
Wave
height (m) 
direction
period (s) 
1.6
E
6
1.1
SE
7
0.6
SE
8
0.6
SE
9
0.8
NNW
3
1.2
NNW
4
1
N
4
0.8
N
4
0.4
NNE
3
0.4
NNE
3
0.5
N
3
0.5
N
3
0.3
NW
2
0.3
NW
2
0.2
SSW
2
1.5
S
5
1.5
SSE
7
1.1
SW
5
1.3
SSW
6
1.3
SSW
6
0.8
SSW
6
0.6
SSW
5
0.5
SSW
4
1.1
SW
4
0.6
SW
5
0.4
S
8
0.7
NNW
3
0.8
NNW
4
0.8
NW
4
0.7
NNW
4
0.4
NNW
3
0.4
NW
2
0.1
SE
11
0.4
SSW
3
0.7
SSW
4
light snow
clear
part cloud
light snow
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
mod rain
part cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
light snow
clear
some clouds
light snow
some clouds
some clouds
clear
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
mod rain
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
cloudy
some clouds
 km/h
40
ENE
20
NNE
10
W
30
W
40
NW
45
NNW
35
NNW
25
N
20
N
20
N
20
N
20
NNW
15
NW
15
NW
15
SSW
40
SSE
45
W
35
W
35
W
40
W
30
W
25
W
20
WSW
35
WSW
20
NNW
15
N
30
NNW
35
NW
35
NW
30
NW
25
NNW
15
NW
5
WNW
25
SW
30
SW
 mm 
8
max°C
-2
-4
0
0
-1
-8
-9
-9
-10
-7
-6
-8
-2
-1
4
7
3
-2
-3
-3
-6
-5
-2
1
-9
-8
-11
-16
-16
-19
-16
-14
-7
-2
0
Moonrise
10:09
10:29
10:48
11:07
11:27
11:51
12:21
1:00
1:52
2:59
4:16
5:38
Moonset
8:39
9:49
11:00
12:12
1:29
2:49
4:12
5:33
6:45
7:43
8:26
Sunrise
7:07
7:07
7:07
7:07
7:07
7:07
7:07
7:07
7:07
7:07
7:07
7:07
Sunset
3:57
3:59
4:00
4:00
4:00
4:01
4:02
4:02
4:05
4:05
4:06
4:07
Today's sea temperature in Southwest Harbor is
5.6° C
(Statistics for 24 Dec 1981-2005 – mean: 6.1 max: 6.9 min: 4.9°C)
Issued (local time): 12 am Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest