Port Jefferson 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 07:05 AM and sunset is at 04:39 PM.
Days 1–3 Weather SummaryHeavy rain (total 33mm), heaviest during Sun night. Cool air temperatures (max 14°C on Fri morning, min 9°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummaryHeavy rain (total 71mm), heaviest during Tue night. Cool air temperatures (max 13°C on Wed morning, min 7°C on Tue night). Winds increasing (light winds from the SE on Tue night, fresh winds from the SSW by Wed afternoon). | Days 7–9 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Very mild (max 10°C on Thu morning, min 4°C on Fri night). Wind will be generally light. | Days 10–12 Weather SummaryHeavy rain (total 23mm), heaviest during Wed morning. Very mild (max 11°C on Sun morning, min 6°C on Mon night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Friday 8 | Saturday 9 | Sunday 10 | Monday 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||||||||||||
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 | 10:49AM3.36m | 8:22PM2.37m | 11:37AM3.40m | 10:08PM2.25m | 12:18PM3.44m | 11:51PM2.30m | 12:54PM3.47m | 1:22AM2.52m | 1:27PM3.49m | 2:38AM2.83m | 2:00PM3.51m | 3:43AM3.15m | 2:34PM3.51m | 4:42AM3.41m | 3:08PM3.49m | 5:37AM3.59m | 3:45PM3.43m | 6:30AM3.67m | 4:24PM3.33m | 7:23AM3.68m | 5:05PM3.17m | 8:17AM3.63m | 5:50PM2.96m | |||||||||||||
Low Tide | 4:49PM2.22m | 3:49AM0.19m | 6:00PM1.90m | 4:53AM0.44m | 6:52PM1.45m | 5:59AM0.72m | 7:35PM0.92m | 7:02AM1.01m | 8:15PM0.37m | 8:02AM1.30m | 8:55PM-0.15m | 8:58AM1.59m | 9:36PM-0.58m | 9:52AM1.84m | 10:17PM-0.87m | 10:44AM2.05m | 11:00PM-1.00m | 11:35AM2.20m | 11:44PM-0.96m | 12:29PM2.30m | 00:30AM-0.80m | 1:28PM2.35m | 1:17AM-0.52m | |||||||||||||
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 | |  | |  | | | |  | |  | |  | | |  |  |  | | |  | | | | | | | | |  | | | | | |  | |
cloudy | cloudy | cloudy | cloudy | mod rain | cloudy | cloudy | mod rain | heavy rain | cloudy | light rain | cloudy | some clouds | cloudy | heavy rain | heavy rain | rain shwrs | some clouds | cloudy | light rain | rain shwrs | light rain | some clouds | some clouds | cloudy | cloudy | cloudy | cloudy | cloudy | light rain | light rain | cloudy | some clouds | some clouds | some clouds | mod rain | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | 6 | — | — | 8 | 19 | — | 3 | — | — | — | 45 | 22 | 1.0 | — | — | 1.0 | 4 | 1.0 | — | — | — | — | — | — | — | 2.0 | 2.0 | — | — | — | — | 10 | |
max°C | 14 | 14 | 11 | 13 | 10 | 10 | 12 | 11 | 11 | 11 | 9 | 9 | 11 | 10 | 10 | 13 | 12 | 11 | 10 | 10 | 10 | 8 | 6 | 5 | 7 | 7 | 9 | 11 | 11 | 11 | 8 | 8 | 8 | 8 | 7 | 7 |
Moonrise | 1:41 | — | — | 2:04 | — | — | 2:23 | — | — | 2:40 | — | — | 2:58 | — | — | — | 3:16 | — | — | 3:38 | — | — | 4:06 | — | — | 4:44 | — | — | 5:35 | — | — | 6:39 | — | — | 7:52 | — |
Moonset | — | — | 10:49 | — | — | — | 12:10 | — | — | 1:32 | — | — | 2:54 | — | — | 4:19 | — | — | 5:46 | — | — | 7:15 | — | — | 8:43 | — | — | 10:03 | — | — | 11:08 | — | — | 11:57 | — | — |
 | 7:05 | — | — | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — |
 | — | 4:39 | — | — | 4:37 | — | — | 4:37 | — | — | 4:36 | — | — | 4:35 | — | — | 4:32 | — | — | 4:31 | — | — | 4:30 | — | — | 4:30 | — | — | 4:29 | — | — | 4:28 | — | — | 4:27 | — |
Today's sea temperature in Port Jefferson is 11.2 °C (Statistics for 08 Nov 1981-2005 – mean: 10.0 max: 11.4 min: 8.9°C) | ||||||||||||||||||||||||||||||||||||
Nearest