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 06:52 AM and sunset is at 06:32 PM.

Days 1–3 Weather Summary

A dusting of snow turning to light rain (total 9mm) on Fri night. Icy conditions (max 7°C on Wed night, min -4°C on Thu night). Mainly strong winds.

Days 4–6 Weather Summary

Heavy rain (total 30mm), heaviest during Mon afternoon. Icy conditions (max 9°C on Mon afternoon, min -4°C on Sun morning). Winds increasing (light winds from the WNW on Sun afternoon, gales from the SSE by Mon morning).

Days 7–9 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Tue morning, min -6°C on Tue night). Winds decreasing (fresh winds from the WNW on Wed morning, light winds from the SSE by Thu night).

Days 10–12 Weather Summary

Light rain (total 3mm), mostly falling on Sat morning. Freeze-thaw conditions (max 7°C on Sat afternoon, min -4°C on Mon morning). Winds decreasing (near gales from the SW on Sat morning, light winds from the S by Mon morning).

Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thu
26
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
PM
Wave Height Map
High Tide
5:40PM2.47m
5:51AM2.81m
6:43PM2.44m
6:53AM2.81m
7:44PM2.49m
7:53AM2.89m
8:38PM2.61m
8:46AM3.01m
9:24PM2.78m
9:33AM3.15m
10:04PM2.97m
10:16AM3.29m
10:42PM3.18m
10:58AM3.40m
11:19PM3.37m
11:39AM3.48m
11:57PM3.54m
12:22PM3.49m
00:38AM3.65m
1:07PM3.45m
1:21AM3.69m
1:55PM3.34m
2:09AM3.66m
2:48PM3.19m
3:01AM3.57m
3:47PM3.02m
4:01AM3.43m
4:54PM2.87m
Low Tide
11:35AM0.51m
11:41PM0.77m
12:38PM0.56m
00:42AM0.79m
1:40PM0.53m
1:44AM0.73m
2:35PM0.44m
2:39AM0.59m
3:22PM0.30m
3:28AM0.42m
4:02PM0.16m
4:12AM0.22m
4:41PM0.01m
4:54AM0.01m
5:18PM-0.10m
5:36AM-0.17m
5:56PM-0.18m
6:19AM-0.31m
6:36PM-0.20m
7:04AM-0.39m
7:19PM-0.16m
7:52AM-0.39m
8:05PM-0.06m
8:43AM-0.31m
8:56PM0.08m
9:41AM-0.17m
9:53PM0.24m
10:45AM-0.02m
Wave
height (m) 
direction
period (s) 
1.3
E
5
1.2
ESE
5
1.3
SSE
7
1.5
S
8
1
S
8
1
S
5
0.8
SSE
9
0.9
SSE
9
1.5
S
5
1.7
S
8
1.6
SSW
6
1
SW
6
0.6
SW
5
0.3
S
8
0.9
SSE
4
3.5
SSE
8
3
S
8
3.5
S
10
1.8
SSE
11
1.6
SSE
11
1.3
SSE
11
1.2
SSE
10
0.9
SSE
10
0.8
SSE
10
0.7
SSE
9
0.7
SSE
9
0.5
SSE
9
0.6
SSE
8
0.8
SSE
5
1.5
SSW
5
2.1
SSW
6
1.3
SSW
5
1
SW
5
1
NW
4
0.8
NW
4
0.3
SSE
8
0.2
SSE
8
0.6
S
4
0.6
S
5
0.5
S
5
0.6
S
6
1.8
S
8
2.5
S
7
1.7
S
6
1.8
SSW
6
1.1
S
10
1
SSW
6
part cloud
cloud
light rain
light rain
light snow
snow showers
clear
part cloud
light snow
cloud
cloud
part cloud
part cloud
part cloud
cloud
heavy rain
mod rain
mod rain
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
part cloud
part cloud
part cloud
light rain
part cloud
clear
clear
clear
part cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
light rain
rain showers
clear
cloud
cloud
some clouds
cloudy
light rain
light rain
light snow
snow shwrs
clear
some clouds
light snow
cloudy
cloudy
some clouds
some clouds
some clouds
cloudy
heavy rain
mod rain
mod rain
cloudy
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
cloudy
clear
some clouds
some clouds
some clouds
light rain
some clouds
clear
clear
clear
some clouds
cloudy
cloudy
some clouds
clear
some clouds
some clouds
light rain
rain shwrs
clear
cloudy
cloudy
 km/h
40
E
25
SE
30
SSW
30
WSW
20
NW
35
NW
25
W
30
SSW
40
SSE
40
WSW
45
W
30
WNW
25
NW
15
SSW
35
SSE
60
SSE
55
S
55
SW
25
WNW
20
SW
25
NW
30
WNW
25
WNW
15
NE
20
ESE
15
SE
10
SSW
25
SW
30
SW
45
SSW
50
SW
30
W
40
WNW
35
NW
35
NW
10
N
15
SSE
25
S
15
SSW
15
SSW
15
SSW
40
SSW
45
SSW
45
SW
40
W
30
W
35
WNW
 mm 
2
1
2
4
12
9
9
3
2
1
max°C
1
1
7
7
5
-1
-2
0
4
4
4
0
-3
0
0
7
9
9
1
1
-1
-4
-2
-3
-3
-2
-1
0
1
3
3
7
5
-1
2
0
-2
1
5
8
7
9
9
6
3
-2
-1
Moonrise
2:35
3:28
4:12
4:48
5:17
5:41
6:03
6:23
6:42
7:03
7:28
7:57
8:35
9:24
10:26
11:38
Moonset
10:38
11:32
12:34
1:42
2:53
4:05
5:18
6:33
7:48
9:07
10:28
11:50
1:08
2:16
3:12
Sunrise
6:52
6:50
6:50
6:48
6:46
6:43
6:41
6:41
6:39
6:37
6:35
6:33
6:31
6:30
6:28
6:26
Sunset
6:32
6:34
6:36
6:37
6:37
6:39
6:40
6:42
6:43
6:45
6:45
6:46
6:47
6:50
6:51
6:52
Today's sea temperature in Southwest Harbor is
2.1° C
(Statistics for 11 Mar 1981-2005 – mean: 3.1 max: 4.8 min: 1.9°C)
Issued (local time): 7 am Wednesday 11 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest