Johnstown Sea Conditions and Tide Table

Johnstown 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 08:43 PM.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Mon afternoon, min 3°C on Sun night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Warm air temperatures (max 25°C on Thu afternoon, min 9°C on Tue night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 7mm), mostly falling on Sat morning. Warm (max 20°C on Sat afternoon, min 8°C on Sun night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Very mild (max 18°C on Thu afternoon, min 7°C on Mon night). Wind will be generally light.

Days 14–17 Weather Summary

Light rain (total 6mm), mostly falling on Sat afternoon. Warm (max 20°C on Sun morning, min 8°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the W by Sun morning).

Sat
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
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
1:34PM0.35m
2:38AM0.33m
2:02PM0.35m
3:18AM0.33m
2:27PM0.36m
10:53PM0.30m
2:56PM0.37m
3:58AM0.31m
3:34PM0.38m
3:50AM0.31m
4:15PM0.39m
3:48AM0.32m
4:58PM0.41m
4:20AM0.34m
5:43PM0.43m
5:12AM0.36m
6:32PM0.44m
6:26AM0.39m
7:25PM0.46m
8:04AM0.43m
8:18PM0.47m
8:55AM0.46m
9:11PM0.47m
9:35AM0.49m
10:04PM0.47m
10:15AM0.50m
11:00PM0.45m
11:00AM0.49m
Low Tide
7:39PM0.27m
7:12AM0.27m
8:02PM0.28m
7:32AM0.28m
8:28PM0.30m
7:49AM0.28m
1:12AM0.30m
8:03AM0.28m
1:53AM0.31m
8:15AM0.28m
1:57AM0.32m
8:26AM0.30m
1:34AM0.33m
8:44AM0.32m
1:18AM0.34m
12:24PM0.34m
1:14AM0.35m
1:29PM0.36m
1:22AM0.36m
2:27PM0.37m
1:42AM0.37m
3:33PM0.38m
2:13AM0.38m
4:50PM0.37m
3:01AM0.39m
5:58PM0.35m
4:37AM0.38m
6:55PM0.33m
Wave
Height (m)
Direction
Period (s)
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
light rain
light rain
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
part cloud
cloud
light rain
rain showers
part cloud
cloud
light rain
rain showers
clear
clear
part cloud
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
clear
cloudy
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
some clouds
light rain
light rain
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
clear
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
light rain
rain shwrs
some clouds
cloudy
light rain
rain shwrs
clear
clear
some clouds
km/h
10
N
5
E
15
ENE
20
ENE
10
N
10
NNW
15
NNW
5
NW
5
WSW
15
SSW
5
SW
5
W
15
W
5
SW
10
SW
10
SW
10
SSW
10
SW
20
SSW
5
SSE
5
SSE
10
WNW
10
S
5
SW
15
WNW
5
N
10
NE
10
NE
15
NNE
20
NNE
20
NNE
10
NE
20
NE
25
ENE
15
ENE
10
SSE
15
SE
5
ESE
10
S
0
S
10
S
10
S
20
S
10
SW
25
W
30
WNW
15
WNW
2
5
1
1
2
2
max °C
7
6
7
8
4
12
14
8
12
14
11
19
21
17
24
25
16
20
19
13
14
20
13
19
18
12
8
9
7
9
12
11
16
15
10
17
18
11
12
15
10
13
17
14
20
20
12
Moonrise
8:40
9:41
10:33
11:17
11:52
12:19
12:42
1:02
1:20
1:37
1:55
2:16
2:42
3:16
4:03
Moonset
4:50
5:33
6:26
7:27
8:33
9:41
10:50
11:59
1:09
2:22
3:37
4:58
6:22
7:47
9:05
Sunrise
5:16
5:16
5:16
5:15
5:15
5:13
5:13
5:13
5:13
5:13
5:13
5:11
5:11
5:11
5:11
Sunset
8:43
8:44
8:45
8:45
8:45
8:46
8:47
8:49
8:49
8:50
8:51
8:51
8:52
8:52
8:52
8:53
Today's sea temperature in Johnstown is
7.2° C
(Statistics for 30 May 1981-2005 – mean: 6.1 max: 8.2 min: 4.4°C)
Issued (local time): 2 pm Saturday 30 May 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest