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 06:00 AM and sunset is at 07:40 PM.
Days 1–3 Weather SummaryLight rain (total 2mm), mostly falling on Wed morning. Cool air temperatures (max 15°C on Wed afternoon, min 1°C on Wed night). Winds increasing (calm on Tue morning, fresh winds from the WNW by Wed afternoon). | Days 4–6 Weather SummaryModerate rain (total 14mm), heaviest on Sun night. Cool air temperatures (max 18°C on Sun night, min 5°C on Fri morning). Wind will be generally light. | Days 7–9 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Warm (max 23°C on Mon afternoon, min 11°C on Wed night). Winds increasing (light winds from the E on Mon afternoon, fresh winds from the WNW by Wed afternoon). | Days 10–12 Weather SummaryMostly dry. Warm (max 21°C on Thu afternoon, min 10°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | |||||||||||||||||||||||||
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 | 11:50AM1.97m | 11:58PM2.17m | 12:26PM1.95m | 00:33AM2.18m | 1:03PM1.94m | 1:10AM2.18m | 1:41PM1.92m | 1:49AM2.18m | 2:24PM1.90m | 2:32AM2.15m | 3:11PM1.89m | 3:22AM2.12m | 4:04PM1.89m | 4:19AM2.08m | 5:03PM1.91m | 5:23AM2.04m | 6:05PM1.97m | 6:29AM2.03m | 7:07PM2.06m | 7:34AM2.05m | 8:06PM2.17m | 8:36AM2.08m | 9:02PM2.28m | |||||||||||||
Low Tide | 5:45AM0.01m | 5:52PM0.17m | 6:21AM-0.01m | 6:27PM0.18m | 6:58AM-0.01m | 7:02PM0.22m | 7:36AM0.02m | 7:39PM0.26m | 8:17AM0.06m | 8:21PM0.31m | 9:02AM0.12m | 9:10PM0.36m | 9:53AM0.17m | 10:07PM0.39m | 10:50AM0.21m | 11:12PM0.39m | 11:51AM0.22m | 00:20AM0.33m | 12:53PM0.18m | 1:26AM0.20m | 1:52PM0.11m | 2:28AM0.05m | 2:49PM0.03m | 3:25AM-0.11m | ||||||||||||
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 | |  |  | |  | | | | | | |  |  |  | |  |  | | | | | |  | | | | | | | | | | | | | |
clear | clear | some clouds | light rain | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | cloudy | light rain | light rain | rain shwrs | mod rain | some clouds | some clouds | some clouds | cloudy | some clouds | rain shwrs | some clouds | some clouds | clear | clear | clear | clear | clear | some clouds | clear | clear | clear | some clouds | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | 2.0 | — | — | — | — | — | — | — | — | — | — | 4 | 3 | 1.0 | 6 | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 11 | 13 | 9 | 12 | 15 | 9 | 5 | 11 | 9 | 8 | 12 | 9 | 12 | 13 | 11 | 11 | 17 | 18 | 17 | 23 | 15 | 13 | 18 | 15 | 17 | 18 | 16 | 15 | 21 | 20 | 12 | 15 | 11 | 13 | 17 | 14 |
Moonrise | — | 7:40 | — | — | 8:45 | — | — | — | 9:53 | — | — | 11:00 | — | — | — | 12:04 | — | — | 1:02 | — | — | 1:50 | — | — | 2:29 | — | — | 3:02 | — | — | 3:29 | — | — | 3:54 | — | — |
Moonset | 5:42 | — | — | 6:05 | — | — | 6:32 | — | — | 7:05 | — | — | 7:46 | — | — | 8:38 | — | — | 9:40 | — | — | 10:51 | — | — | 12:06 | — | — | 1:22 | — | — | 2:38 | — | — | — | 3:54 | — |
 | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:46 | — | — |
 | — | 7:40 | — | — | 7:42 | — | — | 7:43 | — | — | 7:44 | — | — | 7:45 | — | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — | 7:49 | — | — | 7:50 | — | — | 7:51 | — | — | 7:52 | — |
Today's sea temperature in Port Jefferson Harbor entrance, Long Island Sound is 8.7 °C (Statistics for 23 Apr 1981-2005 – mean: 7.7 max: 9.1 min: 6.3°C) | ||||||||||||||||||||||||||||||||||||
Nearest