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 06:07 AM and sunset is at 07:54 PM.

Days 1–3 Weather Summary

Heavy rain (total 22mm), heaviest during Wed night. Cool air temperatures (max 17°C on Wed afternoon, min 5°C on Thu night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 18°C on Mon afternoon, min 5°C on Sat night). Wind will be generally light.

Days 7–9 Weather Summary

Moderate rain (total 19mm), heaviest on Thu afternoon. Warm (max 25°C on Thu afternoon, min 8°C on Thu night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 5mm), mostly falling on Sat night. Very mild (max 17°C on Sat afternoon, min 8°C on Sat night). Winds decreasing (fresh winds from the WNW on Fri afternoon, light winds from the W by Fri night).

Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thu
14
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
10:04AM0.83m
10:17PM0.53m
10:46AM0.87m
10:53PM0.51m
11:25AM0.89m
11:26PM0.49m
12:03PM0.89m
11:58PM0.48m
12:39PM0.88m
00:33AM0.48m
1:16PM0.86m
1:11AM0.48m
1:55PM0.84m
1:54AM0.49m
2:35PM0.80m
2:44AM0.50m
3:19PM0.77m
3:41AM0.52m
4:06PM0.73m
4:44AM0.55m
4:57PM0.70m
5:47AM0.59m
5:50PM0.67m
6:48AM0.66m
6:45PM0.65m
7:43AM0.74m
7:38PM0.62m
8:34AM0.83m
Low Tide
4:51PM0.14m
4:08AM0.13m
5:39PM0.15m
6:22PM0.17m
5:14AM0.12m
7:04PM0.20m
5:48AM0.13m
7:43PM0.22m
6:22AM0.15m
8:22PM0.23m
6:59AM0.17m
9:03PM0.25m
7:40AM0.20m
9:45PM0.26m
8:28AM0.24m
10:29PM0.26m
9:27AM0.27m
11:13PM0.26m
10:39AM0.30m
11:57PM0.24m
11:56AM0.31m
00:39AM0.22m
1:10PM0.30m
1:19AM0.19m
2:16PM0.28m
1:59AM0.16m
3:17PM0.25m
Wave
height (m) 
direction
period (s) 
cloud
light rain
rain showers
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
cloud
light rain
light rain
light rain
part cloud
part cloud
cloud
thunderstorm
rain showers
clear
clear
clear
part cloud
part cloud
rain showers
clear
part cloud
part cloud
clear
clear
part cloud
cloud
light rain
light rain
part cloud
cloud
clear
clear
clear
cloudy
light rain
rain shwrs
some clouds
some clouds
clear
clear
some clouds
some clouds
cloudy
some clouds
some clouds
clear
some clouds
clear
clear
some clouds
some clouds
cloudy
light rain
light rain
light rain
some clouds
some clouds
cloudy
risk tstorm
rain shwrs
clear
clear
clear
some clouds
some clouds
rain shwrs
clear
some clouds
some clouds
clear
clear
some clouds
cloudy
light rain
light rain
some clouds
cloudy
clear
clear
clear
 km/h
15
SSE
15
ESE
0
SSE
20
NW
20
WNW
15
NW
20
NW
15
WNW
10
WNW
10
NW
10
NW
10
NW
20
NW
15
WNW
10
WNW
15
SW
15
SSW
25
S
25
SSW
0
SW
10
SSW
10
SSW
20
SSW
15
SSW
25
SSW
5
S
20
NW
25
WNW
20
NW
10
WNW
25
W
15
W
10
WNW
20
WNW
20
NW
10
N
15
NW
10
NNW
10
NE
0
SW
0
SW
10
ENE
20
ENE
10
E
5
NNE
10
NNE
10
SSE
 mm 
1
21
1
4
2
6
6
5
3
4
max°C
15
17
11
14
16
11
11
14
12
11
14
12
10
15
13
14
18
15
15
20
18
17
20
17
20
25
17
14
16
14
15
17
14
14
17
14
13
17
15
11
10
10
13
16
14
15
19
Moonrise
6:15
7:17
8:21
9:24
10:25
11:21
12:11
12:54
1:30
2:01
2:28
2:52
3:15
3:39
4:04
Moonset
4:49
5:12
5:37
6:06
6:40
7:21
8:09
9:04
10:04
11:07
12:11
1:16
2:22
3:30
4:40
5:55
Sunrise
6:07
6:05
6:05
6:03
6:01
6:01
6:00
5:58
5:58
5:56
5:56
5:54
5:54
5:52
5:52
5:50
Sunset
7:54
7:55
7:57
7:58
7:59
8:00
8:00
8:01
8:02
8:04
8:05
8:06
8:07
8:07
8:07
8:08
Today's sea temperature in Charlestown is
15.5° C
(Statistics for 29 Apr 1981-2005 – mean: 6.5 max: 9.6 min: 3.6°C)
Issued (local time): 1 am Wednesday 29 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest