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 05:05 AM and sunset is at 07:52 PM.

Days 1–3 Weather Summary

Light rain (total 4mm), mostly falling on Fri afternoon. Warm air temperatures (max 22°C on Sun afternoon, min 9°C on Fri morning). Winds increasing (calm on Fri afternoon, fresh winds from the SW by Sat night).

Days 4–6 Weather Summary

Light rain (total 5mm), mostly falling on Wed night. Warm air temperatures (max 22°C on Wed morning, min 10°C on Mon night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 3mm), mostly falling on Thu afternoon. Very mild (max 17°C on Thu morning, min 8°C on Thu night). Wind will be generally light.

Days 10–12 Weather Summary

Moderate rain (total 15mm), heaviest on Sun night. Very mild (max 12°C on Mon night, min 8°C on Tue night). Winds decreasing (fresh winds from the SSW on Sun night, calm by Mon night).

Days 13–16 Weather Summary

Light rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 17°C on Wed afternoon, min 10°C on Wed night). Wind will be generally light.

Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Sat
30
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
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PM
night
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PM
Wave Height Map
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High Tide
9:59AM3.29m
10:11PM3.78m
10:51AM3.37m
11:00PM3.91m
11:43AM3.40m
11:51PM3.98m
12:37PM3.39m
00:44AM3.96m
1:32PM3.34m
1:40AM3.86m
2:30PM3.27m
2:39AM3.71m
3:31PM3.20m
3:42AM3.53m
4:34PM3.16m
4:48AM3.36m
5:38PM3.15m
5:55AM3.20m
6:39PM3.18m
7:02AM3.10m
7:37PM3.22m
8:04AM3.03m
8:29PM3.27m
9:00AM3.00m
9:17PM3.31m
9:51AM2.99m
10:00PM3.33m
10:36AM2.97m
Low Tide
4:07PM0.03m
4:47AM-0.39m
4:56PM-0.03m
5:38AM-0.51m
5:47PM-0.06m
6:31AM-0.55m
6:39PM-0.03m
7:25AM-0.51m
7:34PM0.03m
8:21AM-0.41m
8:33PM0.13m
9:20AM-0.26m
9:36PM0.23m
10:22AM-0.11m
10:43PM0.32m
11:24AM0.03m
11:51PM0.36m
12:26PM0.15m
00:59AM0.34m
1:25PM0.24m
2:02AM0.28m
2:20PM0.31m
2:58AM0.21m
3:10PM0.36m
3:49AM0.14m
3:56PM0.41m
4:34AM0.09m
4:37PM0.45m
Wave
Height (m)
Direction
Period (s)
1.1
SE
10
1.2
SSE
10
0.9
SSE
10
0.8
SSE
10
0.9
SSE
9
1.2
S
7
0.9
SSE
8
0.8
SSE
8
0.6
S
8
0.5
S
8
0.5
S
8
0.6
S
7
0.6
S
4
0.7
S
4
0.8
S
6
0.7
S
7
0.8
S
7
0.8
S
7
0.6
S
7
0.6
S
7
0.5
S
7
0.5
SSW
4
0.6
S
6
0.4
S
7
0.4
S
7
0.5
S
4
0.4
SSE
6
0.9
SSW
4
1.5
S
5
1.5
S
7
1.3
S
8
1.2
S
8
0.9
S
7
0.8
SSE
7
1
SE
5
0.9
SSE
8
0.7
SSE
8
0.8
SSE
8
0.6
SSE
8
0.6
SSE
8
0.7
SE
8
0.6
SSE
7
0.7
SE
8
0.8
SSE
8
0.7
SSE
8
0.7
SSE
8
0.7
SE
8
light rain
light rain
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
light rain
light rain
part cloud
clear
clear
clear
part cloud
cloud
cloud
cloud
light rain
heavy rain
cloud
cloud
light rain
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
cloud
cloud
part cloud
cloud
part cloud
clear
light rain
light rain
clear
clear
clear
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
rain shwrs
rain shwrs
light rain
light rain
some clouds
clear
clear
clear
some clouds
cloudy
cloudy
cloudy
light rain
heavy rain
cloudy
cloudy
light rain
cloudy
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
light rain
cloudy
cloudy
some clouds
cloudy
some clouds
clear
km/h
15
E
5
N
15
W
20
SW
25
SW
30
SW
20
W
20
NW
10
N
5
SW
20
SSW
20
SSW
20
SW
25
SW
20
WSW
20
SW
20
SW
15
SW
5
NW
20
WSW
20
WNW
20
WNW
20
WSW
15
W
20
SW
20
SW
5
NW
30
SSW
35
SSW
35
SSW
25
SSW
15
SW
0
ENE
25
NNE
30
NNE
25
NNE
15
NE
20
E
10
ENE
15
NE
20
ENE
15
E
5
N
10
E
5
ENE
5
S
20
SW
1
3
2
3
1
2
1
13
1
2
max °C
10
10
11
14
13
11
20
22
17
14
13
12
15
18
19
22
19
18
17
16
15
12
15
15
15
15
16
10
11
11
11
11
12
10
10
9
12
17
15
14
15
11
11
14
12
13
13
Moonrise
3:52
4:24
5:06
6:01
7:09
8:27
9:47
11:05
12:18
1:28
2:36
3:42
4:48
5:54
7:00
8:05
Moonset
6:55
8:20
9:42
10:52
11:47
12:28
12:59
1:23
1:44
2:02
2:20
2:38
2:59
3:23
3:52
Sunrise
5:05
5:05
5:03
5:03
5:01
5:01
5:00
4:58
4:58
4:58
4:56
4:56
4:54
4:54
4:54
4:52
Sunset
7:52
7:53
7:54
7:55
7:57
7:58
7:59
8:00
8:00
8:01
8:02
8:04
8:05
8:06
8:07
8:07
Today's sea temperature in Southwest Harbor is
6.8° C
(Statistics for 15 May 1981-2005 – mean: 7.6 max: 9.4 min: 6.5°C)
Issued (local time): 7 am Friday 15 May 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest