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 13°C on Sun night). Wind will be generally light.

Days 4–6 Weather Summary

Some drizzle, heaviest during Fri night. Warm air temperatures (max 23°C on Wed afternoon, min 14°C on Fri night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Sat night. Very mild (max 18°C on Mon afternoon, min 15°C on Sat night). Wind will be generally light.

Days 10–12 Weather Summary

Some drizzle, heaviest during Tue morning. Warm (max 21°C on Wed afternoon, min 14°C on Tue night). Wind will be generally light.

Days 13–16 Weather Summary

Some drizzle, heaviest during Sun afternoon. Warm (max 21°C on Mon morning, min 14°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
clear
clear
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
cloud
cloud
light rain
cloud
cloud
cloud
light rain
cloud
cloud
light rain
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
rain showers
cloud
part cloud
clear
clear
clear
some clouds
clear
clear
some clouds
cloudy
cloudy
some clouds
some clouds
clear
clear
cloudy
some clouds
some clouds
some clouds
some clouds
rain shwrs
cloudy
cloudy
light rain
cloudy
cloudy
cloudy
light rain
cloudy
cloudy
light rain
cloudy
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
cloudy
cloudy
cloudy
cloudy
rain shwrs
cloudy
some clouds
clear
km/h
5
E
10
SE
10
ENE
10
ENE
10
ESE
5
NE
5
E
5
SE
5
SE
0
N
0
SW
5
SSE
5
SSE
10
SSE
5
E
10
E
15
ESE
5
E
10
E
15
E
10
ENE
15
E
15
E
10
ESE
15
SE
20
SSE
15
SE
10
E
15
ESE
5
ENE
5
ENE
10
S
5
S
5
SSW
15
S
5
SSE
15
SE
15
SE
10
ESE
10
E
10
SE
5
ENE
5
ENE
5
E
5
E
5
E
15
SSE
 mm
1
1
1
1
1
max °C
24
25
17
23
25
16
20
20
16
21
23
16
22
22
17
23
23
16
16
16
16
15
15
15
16
18
15
15
18
15
20
21
15
20
20
16
19
20
15
19
20
17
18
20
17
21
21
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): 8 am Sunday 26 Jul 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest