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 — and sunset is at 07:55 PM.

Days 1–4 Weather Summary

Moderate rain (total 11mm), heaviest on Thu afternoon. Cool air temperatures (max 18°C on Sat afternoon, min 10°C on Thu night). Wind will be generally light.

Days 5–7 Weather Summary

Some drizzle, heaviest during Sun afternoon. Warm air temperatures (max 21°C on Sun afternoon, min 10°C on Mon night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 3mm), mostly falling on Wed afternoon. Warm (max 20°C on Tue night, min 11°C on Thu night). Wind will be generally light.

Days 11–13 Weather Summary

Heavy rain (total 34mm), heaviest during Sat morning. Warm (max 23°C on Sun afternoon, min 11°C on Fri night). Winds decreasing (fresh winds from the S on Sat morning, calm by Sun night).

Days 14–17 Weather Summary

Light rain (total 3mm), mostly falling on Thu afternoon. Warm (max 29°C on Thu afternoon, min 10°C on Fri morning). Mainly fresh winds.

Thursday
14
Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Fri
29
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
night
AM
Wave Height Map
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High Tide
5:48PM1.32m
6:06AM1.16m
6:36PM1.43m
6:57AM1.18m
7:25PM1.51m
7:47AM1.20m
8:15PM1.55m
8:39AM1.19m
9:07PM1.55m
9:32AM1.17m
10:02PM1.52m
10:28AM1.14m
10:59PM1.45m
11:28AM1.11m
11:58PM1.36m
12:32PM1.09m
1:01AM1.26m
1:39PM1.09m
2:04AM1.18m
2:45PM1.11m
3:06AM1.11m
3:46PM1.14m
4:03AM1.07m
4:39PM1.18m
4:55AM1.04m
5:27PM1.22m
5:41AM1.02m
6:09PM1.25m
Low Tide
00:08AM0.13m
12:10PM0.05m
00:59AM0.06m
12:58PM0.00m
1:51AM0.01m
1:47PM-0.03m
2:43AM-0.01m
2:37PM-0.03m
3:36AM0.01m
3:31PM-0.01m
4:31AM0.04m
4:27PM0.04m
5:28AM0.09m
5:28PM0.11m
6:28AM0.14m
6:34PM0.18m
7:29AM0.18m
7:44PM0.23m
8:28AM0.20m
8:55PM0.27m
9:24AM0.21m
10:00PM0.27m
10:14AM0.21m
10:58PM0.27m
11:00AM0.21m
11:48PM0.26m
11:41AM0.21m
Wave
Height (m)
Direction
Period (s)
1
S
4
0.8
SSE
5
0.7
SE
6
0.7
SE
7
0.9
SE
10
0.7
SE
10
0.6
SE
9
0.5
SE
9
0.8
SSE
6
0.6
SSE
8
0.5
SE
8
0.7
SSE
8
0.6
S
8
0.6
SSE
7
0.5
S
7
0.5
S
7
0.5
S
7
0.8
SSW
4
0.8
S
7
0.5
S
7
0.5
S
7
0.5
S
7
0.4
SSE
7
0.4
SSE
8
0.4
SSE
5
0.3
SSE
6
0.6
SSE
3
1
SE
5
1.6
SSE
6
1
SSE
6
0.9
SSE
7
0.7
SSE
7
0.5
SSE
7
0.4
SE
7
0.3
SE
7
0.4
SE
7
0.4
SE
7
0.3
SSE
7
0.5
SSW
3
0.4
SSE
6
0.4
SSE
6
0.5
SSW
3
0.4
S
6
0.4
S
6
0.4
SSE
6
0.9
ENE
5
1
E
5
light rain
light rain
mod rain
part cloud
cloud
light rain
part cloud
clear
clear
clear
part cloud
light rain
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
light rain
part cloud
clear
clear
part cloud
part cloud
clear
rain showers
heavy rain
rain showers
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
rain showers
light rain
part cloud
light rain
light rain
mod rain
some clouds
cloudy
light rain
some clouds
clear
clear
clear
some clouds
light rain
clear
clear
clear
some clouds
some clouds
some clouds
cloudy
cloudy
light rain
some clouds
clear
clear
some clouds
some clouds
clear
rain shwrs
heavy rain
rain shwrs
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
rain shwrs
light rain
some clouds
km/h
20
SSE
15
ESE
10
SSW
10
NW
5
N
15
N
0
SW
20
WSW
25
SW
15
SW
20
SW
10
WSW
10
N
15
E
15
SSE
10
S
15
SSW
25
SSW
15
WSW
10
NW
10
WSW
10
W
10
N
10
S
5
SSE
15
SE
20
SSE
25
SE
30
SSW
25
SW
25
WNW
20
NW
15
NW
0
WSW
10
NE
15
SSE
10
WSW
15
SW
20
SW
10
SW
15
WSW
20
SW
10
W
10
W
20
NE
20
ENE
25
E
1
2
6
2
1
3
4
29
1
2
1
max °C
13
13
12
13
13
14
11
16
18
15
20
21
19
17
18
12
18
20
20
19
16
16
16
17
12
14
13
14
16
19
17
16
23
21
19
20
13
19
21
19
24
27
25
27
29
13
12
Moonrise
3:43
4:11
4:45
5:29
6:25
7:34
8:51
10:08
11:23
12:35
1:42
2:47
3:51
4:55
5:59
Moonset
5:40
7:00
8:23
9:43
10:53
11:49
12:32
1:05
1:31
1:54
2:15
2:35
2:55
3:18
3:44
Sunrise
5:28
5:28
5:26
5:26
5:24
5:24
5:22
5:22
5:22
5:20
5:20
5:18
5:18
5:18
5:16
5:16
Sunset
7:55
7:57
7:58
7:59
8:00
8:00
8:01
8:02
8:02
8:04
8:05
8:06
8:07
8:07
8:08
8:09
Today's sea temperature in Charlestown is
9.9° C
(Statistics for 13 May 1981-2005 – mean: 10.1 max: 12.3 min: 7.4°C)
Issued (local time): 7 pm Wednesday 13 May 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest