Port Jefferson Harbor entrance, Long Island Sound 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 05:33 AM and sunset is at 08:22 PM.
Days 1–3 Weather SummaryLight rain (total 4mm), mostly falling on Thu afternoon. Very warm air temperatures (max 31°C on Thu night, min 19°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummaryHeavy rain (total 30mm), heaviest during Sun afternoon. Warm air temperatures (max 26°C on Mon afternoon, min 19°C on Sat morning). Wind will be generally light. | Days 7–9 Weather SummaryLight rain (total 2mm), mostly falling on Thu night. Warm (max 30°C on Thu afternoon, min 21°C on Tue morning). Wind will be generally light. | Days 10–12 Weather SummaryHeavy rain (total 37mm), heaviest during Sun morning. Warm (max 34°C on Fri afternoon, min 17°C on Sun afternoon). Winds increasing (calm on Fri afternoon, fresh winds from the NE by Sun afternoon). | |||||||||||||||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||||||||||||||
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 | 4:08PM2.22m | 4:32AM2.01m | 5:01PM2.21m | 5:31AM1.91m | 6:00PM2.21m | 6:35AM1.84m | 7:02PM2.21m | 7:41AM1.82m | 8:06PM2.23m | 8:47AM1.84m | 9:08PM2.27m | 9:49AM1.90m | 10:07PM2.30m | 10:46AM1.98m | 11:03PM2.33m | 11:38AM2.05m | 11:55PM2.32m | 12:27PM2.10m | 00:43AM2.29m | 1:13PM2.12m | 1:30AM2.22m | 1:57PM2.12m | 2:15AM2.12m | |||||||||||||
Low Tide | 9:52AM0.04m | 10:28PM0.09m | 10:43AM0.09m | 11:28PM0.10m | 11:40AM0.15m | 00:31AM0.10m | 12:41PM0.19m | 1:37AM0.08m | 1:46PM0.21m | 2:41AM0.04m | 2:50PM0.20m | 3:42AM-0.01m | 3:51PM0.16m | 4:39AM-0.05m | 4:49PM0.12m | 5:31AM-0.08m | 5:43PM0.08m | 6:19AM-0.09m | 6:33PM0.05m | 7:05AM-0.06m | 7:22PM0.05m | 7:49AM-0.02m | 8:09PM0.08m | |||||||||||||
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 |  |  | |  |  | | |  | | | |  |  | | | | | | | | | | | | | | | | | |  |  |  |  | | |
clear | some clouds | rain shwrs | some clouds | risk tstorm | some clouds | clear | clear | clear | clear | clear | some clouds | mod rain | rain shwrs | clear | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | some clouds | rain shwrs | clear | clear | some clouds | rain shwrs | cloudy | heavy rain | heavy rain | light rain | rain shwrs | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | 1 | — | 3 | — | — | — | — | — | — | — | 10 | 20 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | 2 | — | 12 | 19 | 3 | 1 | |
max°C | 27 | 29 | 27 | 25 | 30 | 31 | 23 | 28 | 26 | 21 | 25 | 23 | 24 | 22 | 21 | 22 | 26 | 23 | 24 | 26 | 23 | 25 | 27 | 24 | 26 | 30 | 28 | 28 | 34 | 32 | 21 | 21 | 21 | 18 | 18 | 19 |
Moonrise | — | — | 11:33 | — | — | 11:57 | — | — | — | 12:26 | — | — | 1:02 | — | — | 1:47 | — | — | 2:44 | — | — | 3:51 | — | — | 5:05 | — | — | 6:20 | — | — | 7:32 | — | — | 8:40 | — | — |
Moonset | 11:48 | — | — | 1:00 | — | — | 2:16 | — | — | — | 3:33 | — | — | 4:51 | — | — | 6:03 | — | — | 7:07 | — | — | 7:57 | — | — | 8:37 | — | — | — | 9:08 | — | — | 9:34 | — | — | 9:55 |
 | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — |
 | — | 8:22 | — | — | 8:22 | — | — | 8:21 | — | — | 8:20 | — | — | 8:19 | — | — | 8:19 | — | — | 8:17 | — | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — |
Today's sea temperature in Port Jefferson Harbor entrance, Long Island Sound is 22.0 °C (Statistics for 16 Jul 1981-2005 – mean: 21.8 max: 23.7 min: 19.2°C) | ||||||||||||||||||||||||||||||||||||
Nearest