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 05:37 AM and sunset is at 07:35 PM.

Days 1–3 Weather Summary

Light rain (total 5mm), mostly falling on Mon morning. Warm air temperatures (max 20°C on Wed morning, min 17°C on Mon afternoon). Wind will be generally light.

Days 4–6 Weather Summary

Some drizzle, heaviest during Thu afternoon. Warm air temperatures (max 21°C on Thu morning, min 17°C on Fri morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 25°C on Mon afternoon, min 14°C on Tue morning). Wind will be generally light.

Days 10–12 Weather Summary

Heavy rain (total 40mm), heaviest during Fri morning. Very mild (max 18°C on Wed morning, min 14°C on Thu morning). Winds increasing (light winds from the E on Wed night, fresh winds from the ENE by Thu night).

Days 13–16 Weather Summary

Mostly dry. Warm (max 22°C on Sun afternoon, min 14°C on Sat morning). Wind will be generally light.

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tue
1
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
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
2:59PM3.36m
3:26AM3.11m
3:46PM3.25m
4:19AM2.91m
4:36PM3.13m
5:15AM2.73m
5:30PM3.02m
6:15AM2.62m
6:27PM2.96m
7:17AM2.57m
7:26PM2.96m
8:15AM2.58m
8:22PM3.01m
9:07AM2.66m
9:12PM3.10m
9:52AM2.76m
9:56PM3.19m
10:31AM2.88m
10:36PM3.28m
11:07AM3.00m
11:13PM3.34m
11:40AM3.13m
11:50PM3.38m
12:13PM3.24m
00:27AM3.39m
12:48PM3.35m
1:06AM3.36m
1:25PM3.43m
Low Tide
8:53AM0.06m
9:24PM0.10m
9:39AM0.26m
10:17PM0.23m
10:28AM0.46m
11:13PM0.37m
11:21AM0.62m
00:13AM0.46m
12:18PM0.73m
1:14AM0.50m
1:18PM0.77m
2:13AM0.48m
2:15PM0.73m
3:06AM0.41m
3:06PM0.65m
3:51AM0.33m
3:51PM0.54m
4:31AM0.23m
4:32PM0.42m
5:06AM0.14m
5:10PM0.30m
5:39AM0.07m
5:47PM0.19m
6:12AM0.02m
6:25PM0.09m
6:46AM-0.01m
7:05PM0.01m
7:23AM-0.00m
7:47PM-0.04m
Wave
Height (m)
Direction
Period (s)
0.8
S
4
0.6
S
5
0.4
S
5
0.4
S
5
0.4
S
6
0.9
SSE
8
0.8
SSE
8
0.7
SSE
8
0.5
SSE
7
0.4
SSE
7
0.4
SSE
6
0.4
SE
6
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
7
0.3
SE
13
0.3
SSE
6
0.3
SSE
6
0.4
SE
9
0.4
SE
8
0.4
SE
11
0.6
S
8
0.4
S
7
0.5
S
4
0.3
S
6
0.4
SE
5
0.4
SE
15
0.4
SSE
14
0.9
SE
6
0.9
SSE
12
1.1
SE
7
0.9
SSE
11
0.7
SSE
10
0.8
SSE
14
0.9
SSE
12
0.8
SSE
11
0.5
SE
10
0.4
SSE
9
0.5
SE
8
0.4
SE
8
0.4
SE
7
0.4
SSE
7
0.5
S
5
0.4
SSW
3
0.5
S
3
light rain
light rain
light rain
cloud
cloud
part cloud
part cloud
part cloud
rain showers
cloud
light rain
part cloud
clear
cloud
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
heavy rain
heavy rain
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
light rain
light rain
cloudy
cloudy
some clouds
some clouds
some clouds
rain shwrs
cloudy
light rain
some clouds
clear
cloudy
clear
clear
clear
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
heavy rain
heavy rain
cloudy
cloudy
cloudy
cloudy
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
km/h
25
SSW
15
SSW
10
SSE
10
NE
10
NE
5
NNW
10
SSW
15
SSW
10
NNW
5
E
5
SSW
10
N
5
E
5
SSE
5
N
10
SE
10
SSW
5
WSW
10
SSE
15
S
10
S
10
WNW
15
SW
10
NW
10
W
20
SW
5
NW
20
E
15
E
15
NE
30
ENE
25
E
35
ENE
20
NNE
15
N
15
N
15
N
10
NNW
10
NW
5
SW
20
SW
15
WSW
15
SW
20
SW
15
SW
15
SSW
20
SSW
 mm
1
2
1
1
1
23
17
max °C
18
17
17
17
19
19
20
20
18
21
20
19
19
20
19
21
21
20
18
19
18
20
25
22
16
20
18
18
18
17
16
18
17
14
15
15
14
15
16
20
22
22
20
20
21
19
19
Moonrise
11:19
12:28
1:36
2:40
3:40
4:33
5:17
5:52
6:21
6:45
7:06
7:26
7:44
8:03
8:25
8:51
Moonset
9:32
9:56
10:26
11:02
11:47
12:40
1:41
2:46
3:55
5:03
6:12
7:22
8:32
9:45
11:00
Sunrise
5:37
5:39
5:39
5:41
5:41
5:43
5:45
5:46
5:47
5:48
5:48
5:50
5:52
5:52
5:54
5:54
Sunset
7:35
7:34
7:31
7:30
7:29
7:27
7:24
7:23
7:22
7:20
7:19
7:16
7:15
7:13
7:12
7:09
Today's sea temperature in Southwest Harbor is
13.9° C
(Statistics for 17 Aug 1981-2005 – mean: 15.4 max: 16.7 min: 14.1°C)
Issued (local time): 7 am Monday 17 Aug 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest