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 05:20 PM.

	Days 1–4 Weather Summary Mostly dry. Cool air temperatures (max 15°C on Wed afternoon, min 10°C on Thu night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Cool air temperatures (max 16°C on Sat afternoon, min 10°C on Fri night). Wind will be generally light.									Days 8–10 Weather Summary Mostly dry. Very mild (max 16°C on Mon afternoon, min 11°C on Mon night). Wind will be generally light.									Days 11–13 Weather Summary Mostly dry. Very mild (max 18°C on Thu afternoon, min 12°C on Thu night). Wind will be generally light.
	Tue 20		Wednesday 21			Thursday 22			Friday 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
	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		1:51AM1.52m	12:42PM1.72m		2:20AM1.58m		1:28PM1.59m	2:50AM1.64m		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
Low Tide	6:47PM-0.19m	6:50AM0.77m			7:19PM-0.11m	7:37AM0.69m		7:52PM0.03m	8:32AM0.59m		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
Wave height (m) direction period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

	cloudy	cloudy	cloudy	cloudy	cloudy	some clouds	clear	clear	clear	clear	clear	clear	clear	some clouds	cloudy	cloudy	clear	clear	some clouds	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	cloudy	cloudy	some clouds	some clouds	clear	clear	clear	clear	clear	clear	rain shwrs	rain shwrs
km/h	NE	NE	NE	NNW	WNW	W	SW	SW	NE	N	N	NE	ENE	NE	NE	NNE	NE	NE	N	NE	NE	NNW	NNW	NE	WNW	NE	NNE	NNW	NNE	NE	NW	NE	NNE	WNW	NNW	NE	NNW	NE	NE	NNE	NNE	NE	NNE	NNE	ENE	ENE	NE
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	1
max°C	13	12	14	15	14	14	14	11	13	15	13	14	16	14	12	14	13	14	16	14	14	15	14	15	16	14	16	18	15	16	17	15	16	16	14	15	17	15	15	18	15	16	19	16	14	17	13
Moonrise	—	—	9:06	—	—	9:31	—	—	9:55	—	—	10:19	—	—	10:47	—	—	11:20	—	—	12:01	—	—	12:51	—	—	1:53	—	—	—	3:04	—	—	4:19	—	—	5:34	—	—	6:46	—	—	7:54	—	—	8:58	—
Moonset	7:28	—	—	8:33	—	—	—	9:39	—	—	10:45	—	—	11:54	—	—	—	1:06	—	—	2:20	—	—	3:35	—	—	4:45	—	—	5:46	—	—	6:37	—	—	7:17	—	—	7:50	—	—	8:18	—	—	8:42	—	—
	—	—	7:20	—	—	7:20	—	—	7:20	—	—	7:18	—	—	7:18	—	—	7:18	—	—	7:16	—	—	7:16	—	—	7:15	—	—	7:15	—	—	7:13	—	—	7:13	—	—	7:11	—	—	7:11	—	—	7:09	—	—
	5:20	—	—	5:21	—	—	5:22	—	—	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	—
	Today's sea temperature in Alcatraz Island, San Francisco Bay is 12.1° C (Statistics for 20 Jan 1981-2005 – mean: 12.2 max: 14.6 min: 10.4°C)