Deer Island (south end), Boston Harbor Sea Conditions and Tide Table

Deer Island (south end), Boston Harbor 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 07:27 PM.

	Days 1–3 Weather Summary Some drizzle, heaviest during Sat night. Warm air temperatures (max 26°C on Sat afternoon, min 3°C on Thu morning). Wind will be generally light.									Days 4–6 Weather Summary Moderate rain (total 16mm), heaviest on Mon night. Cool air temperatures (max 14°C on Sun afternoon, min 6°C on Sun night). Wind will be generally light.									Days 7–9 Weather Summary Light rain (total 3mm), mostly falling on Thu night. Very mild (max 18°C on Thu afternoon, min 7°C on Wed morning). Wind will be generally light.									Days 10–12 Weather Summary Mostly dry. Very mild (max 12°C on Sun afternoon, min 7°C on Sat night). Wind will be generally light.
	Thursday 17			Friday 18			Saturday 19			Sunday 20			Monday 21			Tuesday 22			Wednesday 23			Thursday 24			Friday 25			Saturday 26			Sunday 27			Monday 28
	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 See all maps
High Tide		3:10PM8.2ft	3:13AM9.19ft		3:54PM7.97ft	3:58AM9.06ft		4:44PM7.81ft	4:49AM8.92ft			5:37PM7.81ft	5:46AM8.92ft		6:33PM8.01ft	6:45AM9.06ft		7:28PM8.43ft	7:44AM9.29ft		8:23PM9.02ft	8:44AM9.65ft		9:15PM9.74ft	9:41AM10.01ft		10:05PM10.5ft	10:34AM10.34ft		10:53PM11.12ft		11:26AM10.47ft	11:41PM11.55ft		12:18PM10.47ft	00:31AM11.71ft
Low Tide	8:55AM0.66ft		9:04PM1.74ft	9:39AM0.89ft		9:48PM1.97ft	10:28AM1.08ft		10:39PM2.13ft		11:21AM1.15ft	11:35PM2.1ft		12:16PM1.12ft	00:33AM1.87ft		1:11PM0.89ft	1:32AM1.41ft		2:06PM0.59ft	2:31AM0.79ft		3:01PM0.23ft	3:28AM0.03ft		3:53PM-0.16ft	4:22AM-0.72ft		4:42PM-0.49ft		5:14AM-1.35ft		5:31PM-0.66ft	6:06AM-1.67ft		6:20PM-0.62ft
Wave height (ft) direction period (s)	NW 4	NW 3	ENE 6	E 8	S 3	SSW 4	SSW 3	WSW 3	W 3	NW 3	N 4	NNW 3	NE 6	SE 3	SE 4	ESE 5	ESE 6	WNW 3	ESE 6	E 6	SE 3	SSE 4	S 3	ESE 5	NNE 3	NE 4	NE 4	E 8	E 8	E 7	E 7	E 7	E 7	ESE 7	SE 7	ESE 5

	clear	clear	some clouds	clear	some clouds	some clouds	cloudy	some clouds	rain shwrs	some clouds	clear	some clouds	some clouds	some clouds	heavy rain	light rain	some clouds	clear	clear	clear	some clouds	cloudy	cloudy	rain shwrs	some clouds	cloudy	some clouds	cloudy	cloudy	some clouds	clear	some clouds	some clouds	some clouds	clear	some clouds
mph	WNW	WNW	W	SW	SSW	SW	SW	WSW	WNW	NW	NW	NW	SSE	SSE	SE	WNW	WNW	WNW	NW	ESE	S	SW	SSW	SW	NE	ENE	N	E	ESE	SW	E	ESE	WSW	ENE	E	ESE
in	—	—	—	—	—	—	—	—	0.04	—	—	—	—	—	0.6	0.04	—	—	—	—	—	—	—	0.1	—	—	—	—	—	—	—	—	—	—	—	—
max°F	46	55	54	54	63	54	68	79	75	54	57	52	50	54	48	48	55	50	52	61	54	63	64	57	57	57	55	48	50	48	52	54	50	54	54	50
Moonrise	—	—	—	12:34	—	—	1:27	—	—	2:11	—	—	2:48	—	—	3:18	—	—	3:44	—	—	4:07	—	—	4:30	—	—	4:53	—	—	5:19	—	—	5:50	—	—
Moonset	8:04	—	—	8:53	—	—	9:51	—	—	10:57	—	—	12:08	—	—	1:22	—	—	2:37	—	—	—	3:53	—	—	5:12	—	—	6:32	—	—	7:56	—	—	—	9:21
	6:00	—	—	5:58	—	—	5:56	—	—	5:54	—	—	5:54	—	—	5:52	—	—	5:50	—	—	5:48	—	—	5:48	—	—	5:46	—	—	5:45	—	—	5:43	—	—
	—	7:27	—	—	7:28	—	—	7:29	—	—	7:30	—	—	7:30	—	—	7:31	—	—	7:32	—	—	7:35	—	—	7:36	—	—	7:37	—	—	7:37	—	—	7:38	—
	Today's sea temperature in Deer Island (south end), Boston Harbor is 42 °F (Statistics for 17 Apr 1981-2005 – mean: 42 max: 45 min: 40°F)