Alcatraz Island, San Francisco Bay Sea Conditions and Tide Table

Alcatraz Island, San Francisco Bay 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 — and sunset is at 05:22 PM.

	Days 1–4 Weather Summary Mostly dry. Cool air temperatures (max 17°C on Sat afternoon, min 8°C on Sat night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Cool air temperatures (max 15°C on Mon afternoon, min 9°C on Mon night). Wind will be generally light.									Days 8–10 Weather Summary Mostly dry. Very mild (max 17°C on Fri afternoon, min 12°C on Thu night). Wind will be generally light.									Days 11–13 Weather Summary Mostly dry. Very mild (max 18°C on Mon afternoon, min 10°C on Mon night). Wind will be generally light.
	Fri 23		Saturday 24			Sunday 25			Monday 26			Tuesday 27			Wednesday 28			Thursday 29			Friday 30			Saturday 31			Sunday 1			Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Friday 6			Saturday 7
	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	night
Wave Height Map See all maps
High Tide	2:22PM1.42m	3:24AM1.71m		3:31PM1.25m	4:03AM1.78m		5:08PM1.12m	4:49AM1.84m			7:02PM1.11m			8:37PM1.21m			9:42PM1.33m	7:48AM2.02m		10:32PM1.43m	8:48AM2.07m		11:15PM1.51m	9:43AM2.08m		11:54PM1.56m	10:36AM2.06m		00:31AM1.61m	11:25AM1.98m		1:07AM1.64m	12:13PM1.86m		1:40AM1.67m		1:01PM1.69m	2:13AM1.69m		1:51PM1.51m	2:44AM1.69m		2:46PM1.33m
Low Tide		8:28PM0.22m	9:35AM0.48m		9:08PM0.44m	10:46AM0.35m		9:56PM0.66m	12:01PM0.20m		10:59PM0.85m		1:13PM0.02m	00:19AM0.98m		2:16PM-0.14m	1:37AM1.01m		3:12PM-0.27m	2:44AM0.97m		4:02PM-0.36m	3:43AM0.88m		4:48PM-0.40m	4:36AM0.78m		5:29PM-0.38m	5:27AM0.68m		6:09PM-0.30m	6:17AM0.60m		6:46PM-0.18m		7:06AM0.53m		7:21PM-0.01m	7:57AM0.48m		7:57PM0.19m	8:51AM0.44m
Wave height (m) direction period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

	clear	clear	clear	clear	some clouds	cloudy	cloudy	some clouds	clear	clear	clear	clear	some clouds	some clouds	clear	clear	clear	clear	clear	some clouds	some clouds	clear	some clouds	cloudy	cloudy	cloudy	some clouds	clear	clear	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	NW	N	NE	NNE	ENE	NE	NE	NE	ENE	NNE	NE	ENE	WSW	SSW	N	WNW	N	ENE	WNW	N	NE	NNW	NE	NNE	N	N	NNE	WNW	NE	NE	NNE	NNE	ENE	NE	NE	NE	N	N	NE	N	NE	ENE	NNW	N	NE	WNW	N
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	12	11	15	17	13	11	13	12	13	15	13	13	14	12	14	15	13	14	15	14	16	17	15	15	16	14	16	17	14	16	18	15	16	18	15	16	18	14	16	18	14	15	17	15	15	16	14
Moonrise	—	—	10:19	—	—	10:47	—	—	11:20	—	—	12:01	—	—	12:51	—	—	1:53	—	—	—	3:04	—	—	4:19	—	—	5:34	—	—	6:46	—	—	7:54	—	—	8:58	—	—	—	10:01	—	—	11:03	—	—	—
Moonset	—	10:45	—	—	11:54	—	—	—	1:06	—	—	2:20	—	—	3:35	—	—	4:45	—	—	5:46	—	—	6:37	—	—	7:17	—	—	7:50	—	—	8:18	—	—	8:42	—	—	9:05	—	—	9:28	—	—	9:52	—	—
	—	—	7:18	—	—	7:18	—	—	7:18	—	—	7:16	—	—	7:16	—	—	7:15	—	—	7:15	—	—	7:13	—	—	7:13	—	—	7:11	—	—	7:11	—	—	7:09	—	—	7:09	—	—	7:07	—	—	7:07	—	—
	5:22	—	—	5:23	—	—	5:24	—	—	5:25	—	—	5:27	—	—	5:28	—	—	5:30	—	—	5:30	—	—	5:31	—	—	5:32	—	—	5:34	—	—	5:35	—	—	5:36	—	—	5:37	—	—	5:37	—	—	5:39	—
	Today's sea temperature in Alcatraz Island, San Francisco Bay is 12.2° C (Statistics for 23 Jan 1981-2005 – mean: 12.2 max: 14.5 min: 10.2°C)