Castine, Penobscot Bay Sea Conditions and Tide Table

Castine, Penobscot Bay 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 07:05 AM and sunset is at 03:56 PM.

Days 1–3 Weather Summary

Moderate rain (total 19mm), heaviest on Fri afternoon. Icy conditions (max 12°C on Fri morning, min -5°C on Fri night). Winds increasing (light winds from the SW on Wed night, strong winds from the S by Fri morning).

Days 4–6 Weather Summary

A dusting of snow on Sat night. Freezing level rising with drizzle on Sun morning. Icy conditions (max 4°C on Sun morning, min -9°C on Mon night). Mainly fresh winds.

Days 7–9 Weather Summary

A dusting of new snow. Temperatures will be below freezing (max -2°C on Tue night, min -9°C on Thu night). Wind will be generally light.

Days 10–12 Weather Summary

A dusting of snow turning to light rain (total 9mm) on Sat morning. Freeze-thaw conditions (max 4°C on Sat morning, min -12°C on Sun night). Winds increasing (calm on Fri night, fresh winds from the WNW by Sun night).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
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
Wave Height Map
High Tide
9:00AM3.09m
9:36PM2.77m
9:41AM3.13m
10:17PM2.80m
10:19AM3.16m
10:55PM2.81m
10:56AM3.19m
11:32PM2.82m
11:33AM3.20m
00:08AM2.83m
12:10PM3.20m
00:45AM2.84m
12:48PM3.19m
1:23AM2.86m
1:28PM3.16m
2:04AM2.90m
2:12PM3.12m
2:49AM2.95m
3:01PM3.06m
3:37AM3.02m
3:56PM3.00m
4:29AM3.10m
4:55PM2.95m
5:26AM3.20m
Low Tide
3:23PM0.16m
3:29AM0.49m
4:05PM0.12m
4:08AM0.49m
4:43PM0.09m
4:46AM0.48m
5:20PM0.09m
5:23AM0.48m
5:57PM0.09m
5:59AM0.48m
6:33PM0.09m
6:37AM0.47m
7:11PM0.09m
7:18AM0.46m
7:50PM0.09m
8:02AM0.43m
8:33PM0.10m
8:51AM0.39m
9:19PM0.12m
9:46AM0.33m
10:09PM0.15m
10:45AM0.24m
11:04PM0.18m
Wave
height (m) 
direction
period (s) 
1.5
SSW
5
1
SW
4
0.9
WSW
5
0.2
SSW
2
0.7
S
4
1.2
S
5
2
S
6
2.5
S
7
1.2
WSW
4
1.3
W
6
0.6
W
4
0.9
S
4
1
SSW
5
0.8
SW
4
0.9
WSW
5
1
WNW
4
0.9
NW
4
1.1
NW
4
0.8
NNW
4
0.4
NNW
3
0.3
SW
2
0.4
NW
3
0.6
N
3
0.5
NNW
3
0.4
NW
3
0.5
NNW
3
0.6
NNW
4
0.5
NNW
3
0.3
NNW
3
0.2
S
2
1.4
S
5
0.6
SW
3
0.8
WSW
4
0.8
WNW
4
0.9
WNW
4
1.2
WNW
4
part cloud
part cloud
clear
clear
part cloud
part cloud
mod rain
rain showers
part cloud
clear
part cloud
light snow
rain showers
cloud
clear
clear
clear
clear
clear
part cloud
light snow
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
light snow
mod rain
cloud
part cloud
part cloud
clear
clear
some clouds
some clouds
clear
clear
some clouds
some clouds
mod rain
rain shwrs
some clouds
clear
some clouds
light snow
rain shwrs
cloudy
clear
clear
clear
clear
clear
some clouds
light snow
some clouds
clear
clear
some clouds
clear
clear
clear
some clouds
light snow
mod rain
cloudy
some clouds
some clouds
clear
clear
 km/h
30
SW
20
WSW
30
NW
10
SSW
20
SSW
30
S
40
S
45
SSW
30
W
35
NW
15
WNW
25
S
25
WSW
20
WSW
30
WNW
30
NW
30
NW
30
NW
20
NNW
15
NW
5
WSW
20
NNW
20
NNW
15
NNW
15
NW
20
NNW
20
NNW
20
NNW
10
NNW
15
S
30
S
10
WNW
30
WNW
25
WNW
30
WNW
35
NW
 mm 
6
13
1
9
max°C
4
4
4
2
4
9
12
11
5
-2
-2
3
4
3
-2
-5
-6
-8
-6
-6
-2
-2
-2
-4
-2
-3
-7
-6
-6
1
4
2
3
-5
-7
-10
Moonrise
5:07
6:11
7:10
8:02
8:45
9:20
9:48
10:11
10:31
10:50
11:09
11:29
Moonset
1:49
2:27
3:13
4:09
5:12
6:20
7:30
8:40
9:51
11:02
12:15
Sunrise
7:05
7:05
7:05
7:07
7:07
7:07
7:07
7:09
7:09
7:09
7:09
7:09
Sunset
3:56
3:56
3:56
3:57
3:57
3:59
3:59
4:00
4:00
4:00
4:01
4:02
Today's sea temperature in Castine, Penobscot Bay is
5.9° C
(Statistics for 17 Dec 1981-2005 – mean: 6.5 max: 7.6 min: 5.2°C)
Issued (local time): 12 pm Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest