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 06:43 AM and sunset is at 07:24 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Warm air temperatures (max 27°C on Wed afternoon, min 20°C on Wed night). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 12mm), heaviest on Sun night. Warm air temperatures (max 25°C on Sat morning, min 21°C on Mon night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 31°C on Thu afternoon, min 18°C on Thu morning). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 3mm), mostly falling on Fri morning. Warm (max 23°C on Fri morning, min 16°C on Sat morning). Wind will be generally light.

Wednesday
4
Thursday
5
Friday
6
Saturday
7
Sunday
8
Monday
9
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thu
19
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
9:37AM1.59m
10:08PM1.40m
10:15AM1.50m
10:43PM1.43m
10:52AM1.39m
11:17PM1.43m
11:28AM1.26m
11:52PM1.41m
12:06PM1.14m
00:30AM1.36m
12:48PM1.02m
1:14AM1.31m
1:40PM0.93m
2:09AM1.26m
2:52PM0.87m
3:18AM1.23m
4:22PM0.86m
4:31AM1.25m
5:37PM0.90m
5:34AM1.31m
6:31PM0.98m
6:24AM1.39m
7:13PM1.08m
7:08AM1.47m
7:51PM1.19m
7:48AM1.53m
8:27PM1.30m
8:28AM1.56m
Low Tide
4:00PM0.08m
4:05AM0.20m
4:30PM0.13m
4:46AM0.23m
4:59PM0.20m
5:28AM0.28m
5:28PM0.28m
6:11AM0.35m
5:58PM0.36m
6:59AM0.42m
6:31PM0.45m
7:56AM0.49m
7:13PM0.52m
9:10AM0.53m
8:11PM0.58m
10:35AM0.52m
9:31PM0.61m
11:44AM0.46m
10:52PM0.58m
12:34PM0.38m
11:56PM0.51m
1:13PM0.28m
00:48AM0.43m
1:48PM0.19m
1:33AM0.34m
2:21PM0.11m
2:17AM0.26m
Wave
height (m) 
direction
period (s) 
1.2
E
7
1.3
E
7
1.3
E
6
1.1
E
7
1.4
E
6
1.3
E
6
1.2
E
9
1.4
E
9
1.2
E
9
1
E
9
1.1
E
9
1.2
E
10
1.4
E
9
1.8
SE
6
2.1
SE
7
1.9
ESE
8
1.8
SE
8
1.5
ESE
8
1.4
ESE
8
1.5
E
9
1.4
E
10
1.3
E
9
1.3
E
9
1.4
E
9
1.4
E
9
1.6
E
10
1.7
E
9
1.5
E
11
1.6
E
12
2
ESE
11
1.9
SE
12
2
SE
12
1.9
SE
12
1.8
SSE
11
1.8
SSE
11
1.6
SSE
11
1.5
SSE
13
1.3
SSE
13
1.2
SSE
12
1
S
12
1
S
11
1.1
SSE
14
0.9
SSE
11
1
SSE
10
1
E
6
0.9
SE
17
1.1
SE
16
part cloud
clear
rain showers
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
thunderstorm
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
rain showers
clear
clear
clear
rain showers
light rain
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
rain shwrs
clear
clear
clear
clear
some clouds
clear
clear
clear
clear
some clouds
risk tstorm
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
rain shwrs
clear
clear
clear
rain shwrs
light rain
cloudy
some clouds
some clouds
some clouds
some clouds
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
 km/h
10
NE
20
ENE
10
NE
5
ENE
25
ENE
10
NE
10
E
25
ENE
10
NE
15
E
15
ESE
10
SSE
20
S
25
SSE
20
SE
15
SE
15
SE
0
NE
10
SSE
15
ESE
5
NNE
5
ESE
20
ENE
15
NE
15
N
20
NE
15
N
10
S
15
ESE
20
SW
15
S
20
ESE
15
E
15
ESE
15
E
10
NE
10
NE
20
E
10
NE
10
E
15
E
10
NNE
10
NE
20
ENE
5
NE
10
ENE
25
ENE
 mm 
2
3
9
1
1
1
max°C
25
27
23
26
27
24
25
27
24
25
25
23
24
23
22
23
24
22
23
24
22
23
25
22
27
31
27
23
23
21
21
23
20
21
22
21
23
24
22
23
24
22
22
25
22
23
26
Moonrise
7:45
8:11
8:37
9:06
9:37
10:12
10:53
11:40
12:33
1:30
2:32
3:34
4:38
5:42
6:46
Moonset
7:08
8:09
9:09
10:08
11:07
12:07
1:05
2:02
2:55
3:43
4:25
5:02
5:35
6:06
6:34
7:03
Sunrise
6:43
6:43
6:45
6:46
6:47
6:47
6:48
6:48
6:50
6:50
6:50
6:52
6:52
6:54
6:54
6:54
Sunset
7:24
7:23
7:22
7:21
7:20
7:19
7:17
7:15
7:15
7:14
7:12
7:10
7:09
7:08
7:07
7:06
Today's sea temperature in Charlestown is
24.4° C
(Statistics for 04 Mar 1981-2005 – mean: 23.7 max: 26.1 min: 21.6°C)
Issued (local time): 4 am Wednesday 04 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest