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 07:16 AM and sunset is at 04:31 PM.
Days 1–3 Weather SummaryHeavy rain (total 34mm), heaviest during Sun night. Cool air temperatures (max 14°C on Sun night, min 7°C on Sat afternoon). Winds increasing (calm on Sat morning, strong winds from the S by Sun night). | Days 4–6 Weather SummaryHeavy rain (total 30mm), heaviest during Tue night. Icy conditions (max 11°C on Tue night, min 0°C on Thu night). Winds increasing (light winds from the SSW on Tue morning, fresh winds from the WNW by Wed night). | Days 7–9 Weather SummarySome drizzle, heaviest during Sun night. Freeze-thaw conditions (max 4°C on Sun night, min -4°C on Sat night). Mainly fresh winds. | Days 10–12 Weather SummaryModerate rain (total 10mm), heaviest on Mon morning. Freeze-thaw conditions (max 6°C on Mon morning, min -7°C on Tue night). Winds decreasing (strong winds from the WNW on Mon night, moderate winds from the WSW by Wed night). | |||||||||||||||||||||||||||||||||
Saturday 28 | Sunday 29 | Monday 30 | Tuesday 31 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | |||||||||||||||||||||||||
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 | 9:05AM2.05m | 9:37PM1.77m | 9:48AM2.11m | 10:20PM1.83m | 10:30AM2.17m | 11:02PM1.89m | 11:12AM2.20m | 11:42PM1.99m | 11:54AM2.26m | 00:25AM2.04m | 12:38PM2.25m | 1:08AM2.07m | 1:24PM2.19m | 1:55AM2.09m | 2:13PM2.11m | 2:44AM2.09m | 3:07PM2.00m | 3:38AM2.08m | 4:05PM1.89m | 4:36AM2.07m | 5:08PM1.79m | 5:38AM2.06m | 6:14PM1.73m | 6:42AM2.08m | ||||||||||||
Low Tide | 3:34PM0.08m | 3:37AM0.23m | 4:17PM0.02m | 4:20AM0.20m | 4:58PM-0.03m | 5:03AM0.16m | 5:39PM-0.07m | 5:44AM0.07m | 6:18PM-0.13m | 6:28AM0.03m | 7:00PM-0.14m | 7:15AM0.01m | 7:45PM-0.12m | 8:06AM-0.00m | 8:32PM-0.09m | 9:00AM0.00m | 9:23PM-0.04m | 10:00AM0.01m | 10:18PM0.02m | 11:03AM0.02m | 11:19PM0.07m | 12:09PM0.01m | 00:22AM0.10m | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
 |  |  | |  |  |  |  |  | |  |  | | | | | | | | | | | | | | | | | |  | | | | | | | |
mod rain | light rain | light rain | light rain | some clouds | heavy rain | rain shwrs | clear | clear | some clouds | cloudy | rain shwrs | some clouds | some clouds | clear | cloudy | cloudy | clear | some clouds | cloudy | clear | clear | some clouds | clear | clear | some clouds | light rain | mod rain | some clouds | some clouds | clear | some clouds | clear | cloudy | some clouds | clear | |
km/h | ||||||||||||||||||||||||||||||||||||
7 | 1.0 | 4 | 4 | — | 17 | 1.0 | — | — | — | — | 30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1.0 | 10 | — | — | — | — | — | — | — | — | |
max°C | 8 | 7 | 9 | 12 | 13 | 14 | 10 | 11 | 9 | 10 | 10 | 11 | 9 | 7 | 5 | 4 | 3 | 2 | 2 | 3 | 2 | 1 | 2 | -2 | -2 | -1 | 4 | 6 | 5 | 0 | -2 | -2 | -4 | -6 | -6 | -7 |
Moonrise | 5:23 | — | — | 6:27 | — | — | 7:26 | — | — | 8:16 | — | — | 8:58 | — | — | 9:32 | — | — | 10:00 | — | — | 10:25 | — | — | 10:47 | — | — | 11:10 | — | — | 11:34 | — | — | 12:02 | — | — |
Moonset | 2:15 | — | — | — | 3:03 | — | — | 4:02 | — | — | 5:09 | — | — | 6:22 | — | — | 7:36 | — | — | 8:50 | — | — | — | 10:03 | — | — | 11:15 | — | — | — | 12:28 | — | — | 1:43 | — | — |
 | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — |
 | — | 4:31 | — | — | 4:32 | — | — | 4:32 | — | — | 4:32 | — | — | 4:35 | — | — | 4:35 | — | — | 4:36 | — | — | 4:37 | — | — | 4:37 | — | — | 4:38 | — | — | 4:39 | — | — | 4:40 | — |
Today's sea temperature in Port Jefferson Harbor entrance, Long Island Sound is 6.8 °C (Statistics for 28 Dec 1981-2005 – mean: 7.5 max: 9.7 min: 5.0°C) | ||||||||||||||||||||||||||||||||||||
Nearest