Charlestown Sea Conditions and Tide Table

Charlestown 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 06:37 AM and sunset is at 07:06 PM.

Days 1–3 Weather Summary

Light rain (total 3mm), mostly falling on Mon night. Icy conditions (max 10°C on Mon afternoon, min -1°C on Sat morning). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 5mm) at first, then becoming colder with a dusting of snow on Thu night. Icy conditions (max 14°C on Wed afternoon, min -1°C on Thu night). Winds decreasing (fresh winds from the SW on Wed morning, light winds from the NNW by Wed night).

Days 7–9 Weather Summary

Mild with heavy rain (total 32mm), heaviest during Fri afternoon. Becoming colder with a moderate fall of snow, heaviest on Fri afternoon. Freeze-thaw conditions (max 12°C on Sat night, min -1°C on Fri night). Winds decreasing (strong winds from the SSW on Sat night, light winds from the NNW by Sun night).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 7°C on Tue afternoon, min -4°C on Tue night). Wind will be generally light.

Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sun
12
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
High Tide
5:29PM1.08m
5:56AM1.20m
6:22PM1.17m
6:45AM1.22m
7:07PM1.24m
7:28AM1.22m
7:48PM1.30m
8:07AM1.20m
8:26PM1.34m
8:44AM1.18m
9:02PM1.35m
9:19AM1.14m
9:38PM1.33m
9:54AM1.09m
10:14PM1.29m
10:30AM1.04m
10:52PM1.24m
11:07AM0.98m
11:33PM1.17m
11:49AM0.92m
00:18AM1.10m
12:38PM0.88m
1:12AM1.05m
1:40PM0.85m
2:13AM1.02m
2:51PM0.86m
3:17AM1.02m
3:57PM0.92m
Low Tide
11:22AM0.23m
11:37PM0.20m
12:13PM0.18m
00:32AM0.16m
12:56PM0.14m
1:20AM0.12m
1:34PM0.11m
2:03AM0.09m
2:10PM0.10m
2:43AM0.09m
2:44PM0.10m
3:21AM0.11m
3:18PM0.12m
3:58AM0.15m
3:52PM0.16m
4:36AM0.20m
4:27PM0.21m
5:16AM0.27m
5:04PM0.26m
5:59AM0.33m
5:45PM0.32m
6:48AM0.39m
6:35PM0.38m
7:46AM0.42m
7:36PM0.42m
8:50AM0.42m
8:47PM0.43m
9:50AM0.38m
Wave
height (m) 
direction
period (s) 
0.5
S
7
0.7
SSW
4
0.4
S
5
0.4
SW
2
0.7
SW
4
1
SSW
4
0.8
SSW
4
1
SSW
4
1
SSW
4
1.3
SSW
5
1.4
SSW
5
1.8
SSW
5
1.9
SSW
6
1.5
S
9
0.9
S
8
0.8
S
8
0.9
SSE
6
1.1
E
5
1.6
ESE
6
1.3
ESE
7
0.9
ESE
6
0.9
ENE
4
0.9
E
4
2.1
S
6
1.1
S
8
1
S
8
0.9
SSE
8
0.6
S
8
0.5
S
8
0.4
SSE
7
0.5
SSE
7
0.7
NW
3
0.5
N
3
0.2
SSE
7
0.2
SSE
7
0.3
SE
7
0.3
S
2
0.6
S
3
0.6
S
3
0.6
S
3
0.5
S
3
0.6
SSE
8
1
SSE
12
1.1
SE
11
0.9
SE
10
1.4
SE
10
1.4
ESE
7
part cloud
cloud
part cloud
clear
cloud
part cloud
part cloud
cloud
light rain
rain showers
part cloud
clear
part cloud
rain showers
rain showers
part cloud
part cloud
light snow
mod snow
light snow
cloud
cloud
light rain
heavy rain
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
light snow
some clouds
cloudy
some clouds
clear
cloudy
some clouds
some clouds
cloudy
light rain
rain shwrs
some clouds
clear
some clouds
rain shwrs
rain shwrs
some clouds
some clouds
light snow
mod snow
light snow
cloudy
cloudy
light rain
heavy rain
cloudy
some clouds
clear
clear
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
light snow
 km/h
15
NNW
20
NW
15
WNW
20
SW
25
SSW
20
SW
20
SW
25
SW
20
SW
25
SW
25
SW
30
SW
35
SW
20
W
15
NNW
15
ENE
25
E
25
ENE
30
E
25
NNE
30
NNE
25
ENE
20
E
40
SW
15
W
20
WNW
20
NW
5
ESE
15
S
15
SSW
25
NW
25
NNW
15
N
5
E
15
SSW
10
SSW
15
S
25
SSW
20
SSW
20
SW
20
SSW
10
SSW
10
S
10
SSW
5
W
35
NE
30
NE
 mm 
3
1
1
3
10
3
19
max°C
1
4
3
3
5
5
8
10
9
11
13
10
12
14
10
3
5
1
0
2
0
1
3
12
7
10
8
4
5
4
6
7
1
0
1
1
3
4
8
12
14
13
14
15
13
2
0
Moonrise
2:30
3:42
4:51
5:58
7:03
8:08
9:14
10:19
11:23
12:24
1:18
2:06
2:46
3:19
3:47
Moonset
4:31
4:59
5:22
5:43
6:04
6:24
6:46
7:10
7:40
8:15
8:57
9:48
10:45
11:48
12:55
2:03
Sunrise
6:37
6:35
6:33
6:31
6:30
6:28
6:26
6:24
6:22
6:22
6:20
6:18
6:16
6:15
6:13
6:11
Sunset
7:06
7:07
7:08
7:09
7:10
7:12
7:13
7:14
7:15
7:15
7:16
7:17
7:19
7:20
7:22
7:22
Today's sea temperature in Charlestown is
3.7° C
(Statistics for 28 Mar 1981-2005 – mean: 5.0 max: 6.5 min: 3.3°C)
Issued (local time): 1 am Saturday 28 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest