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 05:37 AM and sunset is at 08:38 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 25°C on Sun afternoon, min 14°C on Sun night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 24°C on Fri morning, min 15°C on Wed night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 23°C on Sat morning, min 14°C on Sun night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Warm (max 24°C on Wed afternoon, min 14°C on Tue night). Wind will be generally light.

Days 13–16 Weather Summary

Some drizzle, heaviest during Sat afternoon. Warm (max 24°C on Sat afternoon, min 16°C on Fri night). Wind will be generally light.

Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Mon
10
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
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
11:46AM0.38m
1:13AM0.35m
12:29PM0.41m
2:20AM0.36m
1:30PM0.44m
3:03AM0.37m
2:18PM0.45m
3:29AM0.38m
2:47PM0.46m
3:41AM0.38m
3:10PM0.46m
3:43AM0.39m
3:37PM0.45m
3:49AM0.40m
4:07PM0.44m
4:06AM0.41m
4:41PM0.43m
4:29AM0.42m
5:23PM0.41m
4:56AM0.42m
6:17PM0.40m
7:35PM0.39m
6:52AM0.42m
8:59PM0.39m
8:55AM0.43m
10:02PM0.39m
10:01AM0.44m
Low Tide
7:03PM0.32m
8:13PM0.34m
6:22AM0.33m
11:13PM0.36m
6:57AM0.33m
00:02AM0.36m
7:30AM0.33m
10:17PM0.37m
8:04AM0.33m
9:39PM0.36m
8:41AM0.33m
9:41PM0.35m
9:27AM0.33m
9:54PM0.33m
10:36AM0.33m
10:16PM0.32m
11:55AM0.33m
10:48PM0.32m
12:53PM0.33m
11:27PM0.33m
1:46PM0.32m
00:14AM0.34m
2:50PM0.32m
1:09AM0.34m
4:32PM0.32m
2:19AM0.34m
5:54PM0.30m
Wave
Height (m)
Direction
Period (s)
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
part cloud
clear
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
clear
some clouds
clear
some clouds
cloudy
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
clear
some clouds
cloudy
cloudy
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
rain shwrs
clear
clear
clear
clear
clear
clear
km/h
5
E
10
SE
5
ENE
10
ENE
10
E
10
NE
10
NE
10
NE
5
WSW
5
WSW
10
S
5
SSW
5
E
5
ESE
5
NE
5
NNE
10
SSE
5
S
5
WSW
15
S
5
SSE
10
SE
10
SSE
5
E
5
ESE
10
SSE
5
SE
5
E
15
SSE
5
SE
0
E
10
SSE
5
NE
5
ENE
10
SSE
5
SE
5
SSE
10
S
5
WSW
5
WNW
10
WSW
5
NNW
10
NW
15
NW
0
N
15
SSW
25
SSW
 mm
1
max °C
24
25
17
23
24
17
19
21
16
22
22
17
21
23
17
24
22
18
23
23
17
20
22
16
20
20
16
22
22
16
23
24
18
20
21
16
20
18
18
23
24
21
22
22
19
23
24
Moonrise
7:14
7:54
8:26
8:52
9:14
9:32
9:49
10:06
10:24
10:45
11:11
11:45
12:31
1:31
2:46
Moonset
2:14
3:11
4:14
5:22
6:32
7:41
8:51
10:01
11:12
12:26
1:43
3:03
4:22
5:34
6:34
7:20
Sunrise
5:37
5:39
5:39
5:41
5:43
5:43
5:45
5:46
5:47
5:48
5:50
5:50
5:52
5:52
5:54
5:56
Sunset
8:38
8:37
8:37
8:36
8:35
8:32
8:31
8:30
8:29
8:28
8:27
8:24
8:23
8:22
8:21
8:19
Today's sea temperature in Johnstown is
17.4° C
(Statistics for 26 Jul 1981-2005 – mean: 16.3 max: 18.7 min: 13.1°C)
Issued (local time): 2 am Sunday 26 Jul 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest