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 06:26 AM and sunset is at 04:44 PM.
Days 1–3 Weather SummaryHeavy rain (total 69mm), heaviest during Fri morning. Warm air temperatures (max 20°C on Thu morning, min 15°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummarySome drizzle, heaviest during Sat night. Cool air temperatures (max 17°C on Sat afternoon, min 9°C on Sun night). Winds decreasing (fresh winds from the NW on Sat night, light winds from the W by Mon night). | Days 7–9 Weather SummaryMostly dry. Very mild (max 14°C on Tue afternoon, min 3°C on Thu night). Winds increasing (calm on Wed afternoon, fresh winds from the NNW by Wed night). | Days 10–12 Weather SummaryMostly dry. Mild temperatures (max 8°C on Sun afternoon, min 3°C on Sun night). Winds increasing (calm on Sat afternoon, fresh winds from the NNW by Sun night). | Days 13–16 Weather SummaryMostly dry. Very mild (max 10°C on Thu afternoon, min 4°C on Mon night). Wind will be generally light. | |||||||||||||||||||||||||||||||||||||||||||
Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thu 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 | 7:04AM2.08m | 7:33PM2.02m | 7:59AM2.17m | 8:28PM2.03m | 8:48AM2.23m | 9:18PM2.03m | 9:33AM2.26m | 10:02PM2.01m | 10:15AM2.27m | 10:44PM1.98m | 10:55AM2.26m | 11:23PM1.95m | 11:33AM2.23m | 00:02AM1.92m | 12:11PM2.19m | 00:41AM1.90m | 12:50PM2.14m | 1:21AM1.88m | 1:30PM2.09m | 2:02AM1.87m | 2:13PM2.04m | 2:47AM1.87m | 3:00PM1.99m | 3:35AM1.88m | 3:50PM1.95m | 4:26AM1.91m | 4:43PM1.92m | 5:17AM1.96m | 5:37PM1.91m | ||||||||||||||||||
Low Tide | 1:24PM0.12m | 1:45AM0.11m | 2:20PM0.02m | 2:36AM0.07m | 3:10PM-0.07m | 3:22AM0.05m | 3:56PM-0.11m | 4:04AM0.05m | 4:39PM-0.12m | 4:45AM0.08m | 5:19PM-0.09m | 5:24AM0.12m | 5:58PM-0.03m | 6:02AM0.19m | 6:37PM0.04m | 6:41AM0.26m | 7:16PM0.12m | 7:22AM0.33m | 7:56PM0.20m | 8:06AM0.40m | 8:40PM0.26m | 8:53AM0.45m | 9:25PM0.31m | 9:45AM0.47m | 10:14PM0.33m | 10:39AM0.45m | 11:04PM0.32m | 11:35AM0.38m | |||||||||||||||||||
Wave Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
 | |  |  |  |  |  | |  | | | | | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
clear | clear | some clouds | cloudy | some clouds | heavy rain | heavy rain | heavy rain | rain shwrs | clear | clear | rain shwrs | some clouds | clear | clear | clear | clear | clear | cloudy | some clouds | clear | clear | clear | clear | some clouds | some clouds | some clouds | clear | some clouds | clear | clear | some clouds | some clouds | cloudy | some clouds | clear | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
km/h | |||||||||||||||||||||||||||||||||||||||||||||||
mm | — | — | — | — | — | 13 | 23 | 28 | 5 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 19 | 19 | 17 | 20 | 19 | 19 | 17 | 17 | 16 | 16 | 17 | 12 | 14 | 13 | 10 | 14 | 15 | 11 | 12 | 14 | 14 | 12 | 14 | 12 | 10 | 9 | 5 | 6 | 7 | 5 | 6 | 7 | 7 | 7 | 8 | 4 | 7 | 7 | 5 | 7 | 9 | 6 | 6 | 8 | 7 | 8 | 10 |
Moonrise | 1:31 | — | — | 2:39 | — | — | 3:45 | — | — | 4:52 | — | — | 5:58 | — | — | 7:04 | — | — | 8:08 | — | — | 9:08 | — | — | 10:02 | — | — | 10:47 | — | — | 11:26 | — | — | 11:58 | — | — | 12:24 | — | — | 12:48 | — | — | 1:10 | — | — | 1:32 | — |
Moonset | 2:22 | — | — | 2:43 | — | — | — | 3:05 | — | — | 3:29 | — | — | 3:56 | — | — | 4:28 | — | — | 5:06 | — | — | 5:51 | — | — | 6:43 | — | — | 7:40 | — | — | 8:42 | — | — | — | 9:45 | — | — | 10:48 | — | — | 11:51 | — | — | — | 12:56 | — |
 | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — |
 | — | 4:44 | — | — | 4:43 | — | — | 4:42 | — | — | 4:40 | — | — | 4:39 | — | — | 4:38 | — | — | 4:37 | — | — | 4:37 | — | — | 4:36 | — | — | 4:35 | — | — | 4:34 | — | — | 4:32 | — | — | 4:31 | — | — | 4:31 | — | — | 4:30 | — | — | 4:30 |
Today's sea temperature in Port Jefferson Harbor entrance, Long Island Sound is 15.8°C (Statistics for 04 Nov 1981-2005 – mean: 13.6 max: 15.8 min: 11.9°C) | |||||||||||||||||||||||||||||||||||||||||||||||
Nearest