Belfast, Penobscot River Sea Conditions and Tide Table

Belfast, Penobscot River 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 03:56 PM.

Days 1–3 Weather Summary

Heavy rain (total 24mm), heaviest during Fri afternoon. Icy conditions (max 12°C on Fri morning, min -4°C on Fri night). Winds increasing (calm on Wed night, strong winds from the SSE by Fri morning).

Days 4–6 Weather Summary

Some drizzle, heaviest during Sat night. Icy conditions (max 5°C on Sun morning, min -8°C on Mon night). Winds decreasing (fresh winds from the NW on Mon morning, light winds from the SW by Mon night).

Days 7–9 Weather Summary

A moderate fall of snow, heaviest on Fri afternoon. Freeze-thaw conditions (max 1°C on Tue night, min -10°C on Wed night). Winds decreasing (fresh winds from the NNW on Wed morning, light winds from the WNW by Wed night).

Days 10–12 Weather Summary

A dusting of new snow. Temperatures will be well below freezing (max -6°C on Fri night, min -15°C on Sat night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Mon
29
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
9:38AM3.20m
10:18PM2.79m
10:15AM3.23m
10:55PM2.80m
10:51AM3.25m
11:31PM2.80m
11:27AM3.26m
00:07AM2.80m
12:03PM3.26m
00:44AM2.81m
12:42PM3.24m
1:22AM2.84m
1:23PM3.21m
2:03AM2.89m
2:08PM3.16m
2:48AM2.97m
2:58PM3.11m
3:35AM3.06m
3:53PM3.04m
4:27AM3.17m
4:53PM2.98m
5:23AM3.29m
5:56PM2.96m
Low Tide
4:07PM0.11m
4:04AM0.48m
4:44PM0.09m
4:40AM0.47m
5:20PM0.08m
5:15AM0.45m
5:55PM0.07m
5:52AM0.45m
6:30PM0.07m
6:31AM0.43m
7:08PM0.07m
7:13AM0.42m
7:47PM0.07m
7:58AM0.39m
8:30PM0.08m
8:49AM0.35m
9:17PM0.10m
9:44AM0.29m
10:07PM0.12m
10:44AM0.20m
11:02PM0.15m
11:47AM0.09m
Wave
height (m) 
direction
period (s) 
0.2
S
8
0.5
S
3
0.8
S
4
1.4
S
6
2.4
S
9
0.9
S
11
0.7
S
11
0.4
S
11
0.9
S
4
0.8
S
8
0.6
S
8
0.5
W
3
0.6
WNW
3
0.6
NW
3
0.2
WNW
2
0.4
SW
2
0.8
SSW
4
0.4
S
8
0.5
NW
3
0.5
N
3
0.1
S
9
0.2
SSW
3
0.2
N
2
0.3
N
2
0.1
S
6
0.3
ENE
2
0.2
N
2
0.4
NW
3
0.5
NW
3
0.5
WNW
3
0.5
WNW
3
0.5
NW
3
0.4
NW
3
0.1
NW
2
0
E
12
clear
part cloud
part cloud
mod rain
rain showers
part cloud
clear
part cloud
light rain
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
cloud
cloud
clear
part cloud
light snow
mod snow
snow showers
clear
clear
clear
clear
clear
clear
clear
cloud
clear
some clouds
some clouds
mod rain
rain shwrs
some clouds
clear
some clouds
light rain
clear
clear
clear
clear
clear
some clouds
cloudy
some clouds
clear
clear
clear
cloudy
cloudy
clear
some clouds
light snow
mod snow
snow shwrs
clear
clear
clear
clear
clear
clear
clear
cloudy
 km/h
10
S
20
SSW
20
S
35
S
40
S
30
W
25
WNW
10
WNW
30
S
20
SW
25
WNW
25
WNW
30
NW
30
NW
15
W
15
SW
20
SW
15
W
30
NNW
25
NNW
5
WNW
10
WSW
10
N
15
N
10
E
10
ENE
10
NW
20
NW
20
WNW
20
NW
25
NW
25
NW
20
NW
10
NW
0
N
 mm 
6
18
1
max°C
3
4
9
12
12
3
-1
-1
4
5
1
-2
-5
-6
-5
2
1
1
-6
-8
-5
-2
-3
-5
-6
-6
-6
-8
-10
-13
-11
-11
-11
-6
-6
Moonrise
6:12
7:11
8:03
8:46
9:21
9:49
10:12
10:32
10:51
11:10
11:30
11:54
Moonset
2:27
3:14
4:10
5:13
6:21
7:31
8:41
9:51
11:03
12:16
1:32
Sunrise
7:07
7:07
7:07
7:07
7:09
7:09
7:09
7:09
7:11
7:11
7:11
7:11
Sunset
3:56
3:57
3:57
3:59
3:59
4:00
4:00
4:00
4:01
4:01
4:02
4:04
Today's sea temperature in Belfast, Penobscot River is
5.8° C
(Statistics for 18 Dec 1981-2005 – mean: 6.4 max: 7.5 min: 4.7°C)
Issued (local time): 12 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest