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 06:31 AM and sunset is at 07:19 PM.
Days 1–3 Weather SummaryLight rain (total 7mm), mostly falling on Sun afternoon. Cool air temperatures (max 15°C on Sat afternoon, min 2°C on Sat night). Winds decreasing (fresh winds from the WNW on Sun night, light winds from the W by Mon night). | Days 4–6 Weather SummaryMostly dry. Icy conditions (max 12°C on Thu afternoon, min -2°C on Tue night). Winds decreasing (strong winds from the NW on Tue afternoon, calm by Wed afternoon). | Days 7–9 Weather SummaryMostly dry. Very mild (max 18°C on Sun afternoon, min 3°C on Fri night). Wind will be generally light. | Days 10–12 Weather SummaryModerate rain (total 11mm), heaviest on Wed night. Warm (max 22°C on Mon afternoon, min 3°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||||||||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sun 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 | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||||||||||
High Tide | 1:42PM1.94m | 1:53AM2.12m | 2:21PM1.88m | 2:32AM2.07m | 3:01PM1.83m | 3:14AM2.01m | 3:45PM1.80m | 3:59AM1.96m | 4:34PM1.78m | 4:50AM1.92m | 5:27PM1.78m | 5:45AM1.91m | 6:23PM1.82m | 6:43AM1.91m | 7:18PM1.89m | 7:40AM1.95m | 8:10PM1.98m | 8:33AM2.00m | 8:59PM2.09m | 9:23AM2.06m | 9:45PM2.20m | 10:12AM2.11m | 10:30PM2.30m | 10:58AM2.14m | 11:15PM2.37m | 11:45AM2.14m | 00:00AM2.41m | 12:33PM2.12m | |||||||||||||||||||
Low Tide | 7:38AM-0.10m | 7:46PM0.09m | 8:16AM-0.01m | 8:24PM0.19m | 8:56AM0.09m | 9:04PM0.29m | 9:39AM0.20m | 9:50PM0.38m | 10:27AM0.29m | 10:41PM0.46m | 11:19AM0.35m | 11:37PM0.49m | 12:13PM0.37m | 00:36AM0.47m | 1:08PM0.35m | 1:33AM0.39m | 2:00PM0.28m | 2:27AM0.27m | 2:49PM0.19m | 3:17AM0.12m | 3:36PM0.09m | 4:05AM-0.03m | 4:20PM0.00m | 4:52AM-0.17m | 5:04PM-0.06m | 5:38AM-0.26m | 5:49PM-0.10m | 6:26AM-0.30m | 6:36PM-0.09m | ||||||||||||||||||
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 | |  |  |  |  |  | |  | | | | | |  | | | | | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | |
some clouds | some clouds | light rain | cloudy | light rain | rain shwrs | clear | some clouds | clear | some clouds | some clouds | clear | clear | clear | some clouds | cloudy | some clouds | clear | cloudy | some clouds | cloudy | cloudy | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | cloudy | some clouds | some clouds | some clouds | clear | some clouds | light rain | rain shwrs | clear | clear | clear | some clouds | some clouds | some clouds | cloudy | some clouds | some clouds | cloudy | some clouds | |
km/h | |||||||||||||||||||||||||||||||||||||||||||||||
— | — | 1 | — | 5 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 7 | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 13 | 15 | 7 | 12 | 13 | 12 | 6 | 11 | 11 | 7 | 8 | 2 | -1 | 3 | 3 | 7 | 12 | 11 | 11 | 16 | 9 | 4 | 8 | 12 | 15 | 18 | 16 | 18 | 22 | 20 | 7 | 10 | 5 | 7 | 9 | 11 | 11 | 14 | 11 | 11 | 12 | 11 | 12 | 17 | 15 | 16 | 17 |
Moonrise | — | — | 10:24 | — | — | 11:28 | — | — | — | 12:28 | — | — | 1:23 | — | — | 2:11 | — | — | 2:51 | — | — | 3:25 | — | — | 3:53 | — | — | 4:18 | — | — | 4:41 | — | — | 5:04 | — | — | 5:27 | — | — | 5:53 | — | — | 6:25 | — | — | 7:03 | — |
Moonset | 7:19 | — | — | 7:49 | — | — | 8:24 | — | — | 9:07 | — | — | 9:57 | — | — | 10:55 | — | — | 11:58 | — | — | 1:04 | — | — | 2:11 | — | — | — | 3:20 | — | — | 4:29 | — | — | 5:41 | — | — | 6:56 | — | — | 8:14 | — | — | — | 9:35 | — | — |
 | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — |
 | — | 7:19 | — | — | 7:21 | — | — | 7:22 | — | — | 7:22 | — | — | 7:23 | — | — | 7:24 | — | — | 7:25 | — | — | 7:27 | — | — | 7:28 | — | — | 7:29 | — | — | 7:30 | — | — | 7:30 | — | — | 7:31 | — | — | 7:32 | — | — | 7:34 | — | — | 7:35 |
Today's sea temperature in Port Jefferson Harbor entrance, Long Island Sound is 4.4° C (Statistics for 04 Apr 1981-2005 – mean: 5.5 max: 7.8 min: 4.0°C) | |||||||||||||||||||||||||||||||||||||||||||||||
Nearest