Port Jefferson Harbor entrance, Long Island Sound Sea Conditions and Tide Table

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 05:43 AM and sunset is at 08:13 PM.

	Days 1–3 Weather Summary Heavy rain (total 36mm), heaviest during Wed morning. Warm air temperatures (max 27°C on Tue afternoon, min 19°C on Thu night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 2mm), mostly falling on Sat afternoon. Warm air temperatures (max 26°C on Sat afternoon, min 20°C on Fri morning). Wind will be generally light.									Days 7–9 Weather Summary Mostly dry. Warm (max 29°C on Tue afternoon, min 21°C on Wed morning). Wind will be generally light.									Days 10–12 Weather Summary Light rain (total 6mm), mostly falling on Thu night. Warm (max 29°C on Sat afternoon, min 22°C on Fri night). Wind will be generally light.									Days 13–16 Weather Summary Light rain (total 2mm), mostly falling on Mon afternoon. Warm (max 34°C on Mon afternoon, min 19°C on Tue morning). Wind will be generally light.
	Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 1			Sunday 2			Monday 3			Tuesday 4			Wednesday 5			Thursday 6			Friday 7			Saturday 8			Sunday 9			Monday 10			Tuesday 11			Wed 12
	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 See all maps
High Tide		11:22AM1.99m	11:31PM2.23m		11:59AM2.05m	00:09AM2.24m		12:34PM2.11m	00:46AM2.23m		1:10PM2.15m	1:23AM2.21m		1:47PM2.18m	2:01AM2.16m		2:25PM2.20m	2:42AM2.10m		3:07PM2.21m	3:28AM2.01m		3:53PM2.20m	4:19AM1.93m		4:45PM2.19m		5:17AM1.84m		5:45PM2.17m	6:23AM1.80m		6:50PM2.17m	7:32AM1.80m		7:58PM2.20m	8:41AM1.87m		9:03PM2.25m	9:43AM1.97m		10:05PM2.31m	10:41AM2.08m
Low Tide	5:17AM0.12m		5:24PM0.27m	5:54AM0.09m		6:03PM0.22m	6:29AM0.06m		6:41PM0.18m	7:04AM0.04m		7:18PM0.13m	7:38AM0.03m		7:57PM0.11m	8:14AM0.04m		8:39PM0.09m	8:53AM0.07m		9:24PM0.10m	9:36AM0.12m		10:16PM0.13m	10:24AM0.18m		11:14PM0.17m		11:22AM0.25m	00:19AM0.19m		12:27PM0.30m	1:27AM0.18m		1:37PM0.30m	2:34AM0.12m		2:46PM0.25m	3:36AM0.04m		3:50PM0.15m	4:33AM-0.05m		4:48PM0.05m
Wave Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

	clear	some clouds	risk tstorm	risk tstorm	risk tstorm	risk tstorm	some clouds	rain shwrs	rain shwrs	some clouds	some clouds	clear	clear	rain shwrs	clear	clear	cloudy	cloudy	cloudy	cloudy	some clouds	clear	clear	clear	clear	clear	some clouds	clear	some clouds	rain shwrs	some clouds	cloudy	clear	clear	clear	clear	clear	clear	some clouds	some clouds	risk tstorm	some clouds	clear	clear	clear	clear	clear
km/h	SSW	S	SSE	SSE	E	ENE	NNW	NW	NNE	N	NNW	SW	NNE	S	SSW	S	S	SSW	SSE	SSW	SW	NE	NW	S	NE	SE	S	SE	SSW	SW	WSW	SW	NNW	N	WSW	SW	W	ESE	WSW	WSW	NNW	NNE	ENE	SSE	SSE	ENE	SSE
mm	—	—	13	10	6	5	—	1	1	—	—	—	—	2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	6	—	—	—	—	—	—	—	—	—	—	2	—	—	—	—	—	—
max °C	26	27	23	22	23	22	21	23	22	21	25	25	23	26	24	25	25	24	24	26	26	25	29	28	24	28	25	27	28	25	25	28	26	26	29	29	27	32	31	31	34	30	21	24	22	23	26
Moonrise	—	7:59	—	—	8:29	—	—	8:54	—	—	—	9:17	—	—	9:38	—	—	9:59	—	—	10:21	—	—	10:46	—	—	11:17	—	—	11:55	—	—	—	12:44	—	—	1:46	—	—	2:59	—	—	4:18	—	—	5:38	—
Moonset	4:26	—	—	5:30	—	—	6:36	—	—	7:41	—	—	8:46	—	—	9:52	—	—	10:59	—	—	12:08	—	—	1:21	—	—	2:36	—	—	—	3:52	—	—	5:02	—	—	6:03	—	—	6:52	—	—	7:30	—	—	8:01
	5:43	—	—	5:45	—	—	5:46	—	—	5:46	—	—	5:47	—	—	5:48	—	—	5:48	—	—	5:50	—	—	5:50	—	—	5:52	—	—	5:52	—	—	5:54	—	—	5:54	—	—	5:56	—	—	5:56	—	—	5:58	—
	—	8:13	—	—	8:12	—	—	8:10	—	—	8:08	—	—	8:07	—	—	8:07	—	—	8:06	—	—	8:05	—	—	8:04	—	—	8:02	—	—	8:00	—	—	8:00	—	—	7:59	—	—	7:58	—	—	7:55	—	—	7:54
	Today's sea temperature in Port Jefferson Harbor entrance, Long Island Sound is 22.7° C (Statistics for 28 Jul 1981-2005 – mean: 22.3 max: 24.1 min: 19.7°C)