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 08:20 PM.

Days 1–4 Weather Summary

Light rain (total 5mm), mostly falling on Sun night. Warm air temperatures (max 29°C on Sat afternoon, min 13°C on Mon night). Wind will be generally light.

Days 5–7 Weather Summary

Moderate rain (total 13mm), heaviest on Wed night. Warm air temperatures (max 24°C on Thu night, min 17°C on Tue night). Winds decreasing (fresh winds from the SW on Thu afternoon, light winds from the W by Fri morning).

Days 8–10 Weather Summary

Light rain (total 4mm), mostly falling on Mon morning. Warm (max 25°C on Sat afternoon, min 16°C on Fri night). Wind will be generally light.

Days 11–13 Weather Summary

Moderate rain (total 11mm), heaviest on Mon afternoon. Warm (max 24°C on Wed afternoon, min 16°C on Tue night). Wind will be generally light.

Days 14–17 Weather Summary

Light rain (total 8mm), mostly falling on Fri morning. Warm (max 24°C on Sun afternoon, min 16°C on Sat night). Wind will be generally light.

Sat
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
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
night
Wave Height Map
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High Tide
7:04PM1.50m
7:27AM1.15m
8:00PM1.54m
8:23AM1.16m
8:55PM1.53m
9:20AM1.17m
9:51PM1.50m
10:17AM1.18m
10:46PM1.43m
11:15AM1.18m
11:42PM1.35m
12:14PM1.17m
00:38AM1.25m
1:13PM1.17m
1:33AM1.15m
2:11PM1.17m
2:28AM1.07m
3:07PM1.17m
3:21AM1.00m
4:00PM1.17m
4:13AM0.96m
4:49PM1.18m
5:02AM0.94m
5:35PM1.19m
5:48AM0.94m
6:19PM1.20m
6:33AM0.94m
7:02PM1.22m
Low Tide
12:31PM0.02m
1:33AM0.05m
1:27PM-0.01m
2:29AM0.03m
2:23PM-0.02m
3:23AM0.02m
3:20PM-0.01m
4:18AM0.04m
4:19PM0.03m
5:12AM0.07m
5:19PM0.09m
6:05AM0.10m
6:20PM0.15m
6:58AM0.14m
7:23PM0.22m
7:49AM0.18m
8:25PM0.27m
8:40AM0.21m
9:26PM0.30m
9:28AM0.24m
10:23PM0.32m
10:15AM0.25m
11:15PM0.33m
11:01AM0.26m
00:02AM0.32m
11:45AM0.26m
00:47AM0.31m
12:28PM0.25m
Wave
Height (m)
Direction
Period (s)
0.5
SSW
4
0.3
SSE
6
0.3
SSE
7
0.6
S
3
0.6
S
5
0.7
SSW
4
0.8
SSW
4
0.6
S
8
0.5
S
8
0.6
S
4
0.5
S
7
0.5
SSE
7
0.6
S
4
0.6
S
5
1
S
4
1.4
S
5
0.9
S
8
0.7
S
8
0.6
S
8
0.7
SW
4
0.7
SW
4
0.6
SSW
4
0.4
S
7
0.4
SSW
3
0.6
S
5
0.5
S
6
0.5
S
6
0.3
SSE
6
0.2
SSE
6
0.5
S
8
0.6
SSE
8
0.6
S
8
0.5
S
8
0.5
S
8
0.4
SSE
7
0.4
SSE
7
0.7
SE
4
0.7
SE
4
0.8
SE
5
1
SE
7
0.8
SSE
8
0.9
SSE
8
0.9
SSE
9
0.7
SSE
8
0.6
SSE
8
0.5
SSE
8
0.4
SSE
7
clear
clear
clear
part cloud
light rain
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
mod rain
light rain
rain showers
part cloud
light rain
light rain
part cloud
clear
clear
clear
cloud
cloud
cloud
light rain
mod rain
rain showers
clear
part cloud
part cloud
clear
clear
clear
cloud
cloud
cloud
mod rain
light rain
rain showers
clear
part cloud
clear
clear
cloud
clear
clear
clear
clear
some clouds
light rain
clear
some clouds
some clouds
clear
some clouds
some clouds
some clouds
some clouds
mod rain
light rain
rain shwrs
some clouds
light rain
light rain
some clouds
clear
clear
clear
cloudy
cloudy
cloudy
light rain
mod rain
rain shwrs
clear
some clouds
some clouds
clear
clear
clear
cloudy
cloudy
cloudy
mod rain
light rain
rain shwrs
clear
some clouds
clear
clear
cloudy
clear
km/h
20
WSW
5
NW
15
SSW
25
SSW
15
S
20
WNW
20
W
15
NW
10
S
20
SW
10
SW
20
S
20
S
15
SW
30
SSW
30
SW
15
WNW
5
W
10
SW
20
NW
20
WNW
20
W
10
NW
15
WSW
10
WSW
10
WSW
15
SW
5
WSW
5
WNW
0
WSW
15
SSW
15
NNW
15
N
20
S
10
SSW
15
SSE
20
SSE
20
SE
20
ESE
10
SE
10
S
20
WSW
25
SW
15
W
15
W
10
W
10
NNW
5
8
1
3
1
1
3
10
1
6
1
1
max °C
29
25
25
25
21
22
24
20
19
21
19
21
21
19
19
21
24
17
19
20
22
25
22
23
24
20
18
18
18
21
23
22
22
24
19
20
19
19
18
18
19
22
23
21
22
24
23
Moonrise
4:06
5:10
6:25
7:45
9:05
10:20
11:31
12:38
1:43
2:47
3:52
4:56
5:59
6:59
7:53
Moonset
7:14
8:30
9:34
10:24
11:02
11:32
11:57
12:19
12:39
1:00
1:22
1:47
2:16
2:52
3:35
Sunrise
5:11
5:11
5:11
5:11
5:11
5:11
5:11
5:13
5:13
5:13
5:13
5:13
5:13
5:13
5:15
Sunset
8:20
8:21
8:21
8:21
8:22
8:22
8:22
8:22
8:22
8:22
8:22
8:22
8:22
8:23
8:23
8:23
Today's sea temperature in Charlestown is
16.0° C
(Statistics for 13 Jun 1981-2005 – mean: 15.9 max: 18.2 min: 13.5°C)
Issued (local time): 1 pm Saturday 13 Jun 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest