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

Heavy rain (total 23mm), heaviest during Fri afternoon. Icy conditions (max 12°C on Fri afternoon, min -3°C on Wed night). Winds increasing (calm on Wed night, near gales from the S by Fri afternoon).

Days 4–6 Weather Summary

Light rain (total 2mm) at first, then becoming colder with a dusting of snow on Sun morning. Icy conditions (max 6°C on Fri night, min -7°C on Sun night). Winds decreasing (fresh winds from the WNW on Fri night, light winds from the WSW by Sat night).

Days 7–9 Weather Summary

Mostly dry. Temperatures will be below freezing (max -1°C on Wed morning, min -11°C on Wed night). Winds decreasing (fresh winds from the NW on Wed afternoon, calm by Thu morning).

Days 10–12 Weather Summary

A dusting of snow turning to light rain (total 5mm) on Thu night. Freeze-thaw conditions (max 4°C on Fri morning, min -10°C on Sat night). Winds increasing (light winds from the SE on Thu night, strong winds from the WNW by Sat afternoon).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sun
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
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
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
Wave
height (m) 
direction
period (s) 
1.7
SSW
5
1.1
SW
5
0.9
W
5
0.3
SSW
2
0.7
S
4
1.2
S
5
1.8
S
6
3
S
7
1.1
WSW
4
1.4
W
6
1
W
5
0.3
S
2
1
SSW
4
0.5
SW
3
1
WSW
5
1
WNW
4
1
NW
4
1
NNW
4
0.5
NW
3
0.1
NW
4
0.4
SW
3
0.3
W
3
1
NNW
4
0.6
NNW
4
0.2
N
3
0.1
S
2
0.9
SSE
4
0.6
SW
3
0.9
W
4
0.9
W
5
1.2
WNW
4
1.5
WNW
5
1.4
WNW
5
1.2
W
4
1.1
W
4
part cloud
part cloud
clear
part cloud
part cloud
rain showers
mod rain
heavy rain
rain showers
clear
part cloud
cloud
snow showers
clear
clear
clear
clear
clear
cloud
cloud
part cloud
clear
clear
clear
clear
cloud
light snow
rain showers
part cloud
clear
clear
clear
part cloud
part cloud
cloud
some clouds
some clouds
clear
some clouds
some clouds
rain shwrs
mod rain
heavy rain
rain shwrs
clear
some clouds
cloudy
snow shwrs
clear
clear
clear
clear
clear
cloudy
cloudy
some clouds
clear
clear
clear
clear
cloudy
light snow
rain shwrs
some clouds
clear
clear
clear
some clouds
some clouds
cloudy
 km/h
35
SW
20
WSW
25
NW
15
SSW
25
S
30
S
35
S
55
S
25
WNW
35
NW
25
WNW
15
S
25
WSW
10
WSW
30
WNW
30
NW
30
NW
30
NW
20
NW
10
WSW
10
WNW
15
WNW
30
NW
20
NNW
10
NNE
10
SE
25
SSE
20
W
30
NW
30
NW
35
NW
40
WNW
40
WNW
35
W
30
W
 mm 
1
7
15
1
1
4
1
max°C
4
4
4
3
4
10
11
12
6
-2
-3
2
3
2
2
-5
-6
-8
-6
-3
-3
-1
-5
-9
-7
-4
3
4
0
-4
-7
-8
-9
-8
-8
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 am Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest