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 07:03 AM and sunset is at 04:30 PM.
Days 1–3 Weather SummaryModerate rain (total 18mm), heaviest on Sun night. Cool air temperatures (max 10°C on Fri morning, min 7°C on Sat night). Wind will be generally light. | Days 4–6 Weather SummaryModerate rain (total 15mm), heaviest on Mon morning. Cool air temperatures (max 10°C on Mon morning, min 6°C on Tue night). Wind will be generally light. | Days 7–9 Weather SummaryHeavy rain (total 32mm), heaviest during Fri night. Very mild (max 10°C on Sat morning, min 4°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the S by Sat night). | Days 10–12 Weather SummaryDrizzle at first, then turning colder with dusting of snow on Mon night. Freeze-thaw conditions (max 8°C on Sun morning, min -1°C on Mon night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||||||||||
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 | 11:40AM0.37m | 11:46PM0.41m | 1:04PM0.33m | 00:46AM0.37m | 2:10PM0.30m | 1:48AM0.34m | 2:55PM0.26m | 2:43AM0.30m | 3:28PM0.23m | 3:31AM0.27m | 3:52PM0.20m | 4:16AM0.25m | 4:06PM0.19m | 5:11AM0.25m | 3:51PM0.18m | 8:50PM0.18m | 7:36AM0.26m | 3:06PM0.19m | 9:50PM0.21m | 8:23AM0.29m | 10:17PM0.25m | 8:59AM0.32m | 10:41PM0.30m | 9:35AM0.35m | 11:01PM0.34m | |||||||||||
Low Tide | 6:23AM0.26m | 5:36PM0.29m | 7:19AM0.23m | 6:20PM0.26m | 8:21AM0.20m | 7:00PM0.23m | 9:32AM0.18m | 7:37PM0.19m | 10:43AM0.17m | 8:11PM0.17m | 11:41AM0.16m | 8:43PM0.16m | 12:30PM0.16m | 9:14PM0.16m | 1:14PM0.17m | 6:51PM0.18m | 2:05PM0.19m | 5:38PM0.19m | 5:25PM0.21m | 4:49PM0.24m | 2:03AM0.28m | 4:25PM0.27m | 3:35AM0.30m | |||||||||||||
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 |  |  | | |  | | |  |  | | | | | | | |  |  | |  | |  | |  | | | | | |  | |  | | | | |
light rain | cloudy | light rain | cloudy | light rain | cloudy | cloudy | cloudy | mod rain | mod rain | light rain | light rain | cloudy | cloudy | cloudy | light rain | light rain | rain shwrs | some clouds | cloudy | some clouds | some clouds | heavy rain | rain shwrs | clear | clear | rain shwrs | some clouds | some clouds | some clouds | rain shwrs | cloudy | light snow | some clouds | cloudy | some clouds | |
km/h | ||||||||||||||||||||||||||||||||||||
4 | — | 4 | — | 1.0 | — | — | — | 9 | 9 | 1.0 | 1.0 | — | — | — | 1.0 | 2.0 | 1.0 | — | — | — | — | 13 | 17 | — | — | 2.0 | — | — | — | 1.0 | — | — | — | — | — | |
max°C | 10 | 10 | 10 | 9 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 8 | 10 | 10 | 7 | 6 | 7 | 9 | 9 | 9 | 6 | 7 | 8 | 9 | 10 | 10 | 10 | 8 | 8 | 5 | 4 | 4 | 1 | 2 | 2 | 1 |
Moonrise | — | 4:02 | — | — | 4:40 | — | — | 5:29 | — | — | 6:32 | — | — | 7:42 | — | — | 8:56 | — | — | — | 10:08 | — | — | 11:17 | — | — | — | 12:23 | — | — | 1:28 | — | — | 2:31 | — | — |
Moonset | 6:46 | — | — | 8:12 | — | — | 9:32 | — | — | 10:40 | — | — | 11:32 | — | — | 12:10 | — | — | 12:39 | — | — | 1:00 | — | — | 1:19 | — | — | 1:34 | — | — | 1:49 | — | — | 2:03 | — | — |
 | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — |
 | — | 4:30 | — | — | 4:29 | — | — | 4:28 | — | — | 4:27 | — | — | 4:27 | — | — | 4:25 | — | — | 4:24 | — | — | 4:23 | — | — | 4:23 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — |
Today's sea temperature in Johnstown is 9.9 °C (Statistics for 15 Nov 1981-2005 – mean: 7.0 max: 8.2 min: 5.4°C) | ||||||||||||||||||||||||||||||||||||
Nearest