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 07:37 AM and sunset is at 04:50 PM.

Days 1–3 Weather Summary

Heavy rain (total 24mm), heaviest during Sun afternoon. Icy conditions (max 8°C on Mon morning, min -12°C on Tue morning). Mainly fresh winds.

Days 4–6 Weather Summary

Mostly dry. Icy conditions (max 1°C on Fri afternoon, min -12°C on Thu morning). Wind will be generally light.

Days 7–9 Weather Summary

A light covering of new snow, mostly falling on Mon afternoon. Freeze-thaw conditions (max 2°C on Mon night, min -11°C on Mon night). Winds increasing (calm on Sat night, strong winds from the WNW by Mon night).

Days 10–12 Weather Summary

A dusting of snow turning to light rain (total 2mm) on Wed night. Freeze-thaw conditions (max 2°C on Wed night, min -15°C on Thu morning). Winds increasing (light winds from the SSW on Tue night, strong winds from the WNW by Thu morning).

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
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
High Tide
3:51PM0.22m
4:06AM0.29m
4:07PM0.25m
9:21PM0.25m
4:40PM0.29m
8:47PM0.29m
6:01AM0.32m
5:44PM0.34m
8:21AM0.35m
7:55PM0.38m
9:17AM0.38m
8:38PM0.43m
9:49AM0.41m
9:20PM0.47m
10:11AM0.43m
10:05PM0.49m
10:46AM0.44m
10:56PM0.50m
12:18PM0.44m
11:53PM0.51m
1:10PM0.44m
00:49AM0.50m
1:47PM0.43m
1:37AM0.49m
Low Tide
11:47AM0.20m
6:36PM0.21m
11:50AM0.22m
6:39PM0.24m
12:04PM0.25m
7:04PM0.29m
12:25PM0.29m
1:20AM0.30m
12:53PM0.33m
2:20AM0.33m
1:36PM0.36m
3:48AM0.37m
3:12PM0.39m
5:13AM0.40m
4:33PM0.40m
6:06AM0.41m
5:23PM0.39m
6:45AM0.41m
6:02PM0.38m
7:18AM0.39m
6:38PM0.35m
7:47AM0.37m
7:14PM0.33m
Wave
height (m) 
direction
period (s) 
light rain
mod rain
mod rain
light rain
cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
part cloud
cloud
part cloud
cloud
snow showers
part cloud
light snow
light snow
light snow
cloud
part cloud
clear
part cloud
light snow
snow showers
light snow
cloud
cloud
light rain
mod rain
mod rain
light rain
cloudy
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
cloudy
cloudy
clear
some clouds
cloudy
some clouds
cloudy
snow shwrs
some clouds
light snow
light snow
light snow
cloudy
some clouds
clear
some clouds
light snow
snow shwrs
light snow
cloudy
cloudy
 km/h
30
SSE
10
SSE
0
NNW
35
SSW
25
W
25
WSW
30
WSW
20
W
10
WNW
15
WNW
25
WNW
20
W
20
W
15
SW
20
SW
15
WSW
5
WNW
15
N
15
N
15
NNW
5
WSW
20
SSW
20
SW
10
SW
10
SSE
15
SW
40
WNW
30
WNW
20
W
5
SSW
20
S
25
SSE
35
W
40
WNW
35
WNW
30
WNW
 mm 
3
9
10
2.0
2.0
max°C
6
7
4
8
-1
-5
-12
-10
-9
-8
-8
-10
-10
-8
-1
0
1
-2
-2
-1
-4
-1
1
0
0
1
2
-5
-6
-9
-1
0
2
-14
-14
-11
Moonrise
11:09
12:13
1:19
2:27
3:36
4:43
5:46
6:39
7:22
7:56
8:22
Moonset
10:13
10:28
10:44
11:04
11:27
11:57
12:38
1:30
2:36
3:51
5:11
6:32
Sunrise
7:37
7:35
7:35
7:35
7:33
7:33
7:31
7:31
7:30
7:28
7:28
7:26
Sunset
4:50
4:51
4:52
4:53
4:54
4:57
4:58
5:00
5:00
5:02
5:04
5:06
Today's sea temperature in Johnstown is 3.1 °C (Statistics for 19 Jan 1981-2005 – mean: 0.2 max: 1.5 min: -0.6°C)
Issued (local time): 7 am Sunday 19 Jan 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest