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 06:52 AM and sunset is at 07:14 PM.

	Days 1–3 Weather Summary Mostly dry. Warm air temperatures (max 20°C on Fri afternoon, min 13°C on Sat night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Cool air temperatures (max 19°C on Tue afternoon, min 13°C on Sun morning). Wind will be generally light.									Days 7–9 Weather Summary Mostly dry. Warm (max 22°C on Wed afternoon, min 14°C on Thu night). Wind will be generally light.									Days 10–12 Weather Summary Mostly dry. Warm (max 21°C on Sun afternoon, min 14°C on Sat morning). Wind will be generally light.									Days 13–16 Weather Summary Mostly dry. Warm (max 23°C on Thu afternoon, min 16°C on Tue 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			Tuesday 29			Wednesday 30			Thursday 1			Fri 2
	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	6:08AM1.24m	4:14PM1.64m		7:44AM1.26m		5:13PM1.59m	8:56AM1.30m		6:23PM1.56m	9:40AM1.36m		7:33PM1.58m	10:12AM1.40m		8:34PM1.62m	10:38AM1.45m		9:27PM1.66m		11:02AM1.51m	10:15PM1.68m		11:25AM1.58m	11:01PM1.68m		11:49AM1.66m	11:48PM1.66m		12:14PM1.74m	00:36AM1.63m		12:40PM1.82m	1:27AM1.57m		1:10PM1.89m	2:23AM1.49m		1:43PM1.92m	3:26AM1.41m		2:23PM1.93m	4:40AM1.34m		3:11PM1.89m
Low Tide	10:18AM1.05m		11:44PM0.26m		11:43AM1.12m	00:55AM0.26m		1:10PM1.10m	2:00AM0.22m		2:16PM1.02m	2:53AM0.16m		3:06PM0.92m	3:36AM0.12m		3:48PM0.80m	4:12AM0.09m		4:26PM0.66m	4:44AM0.10m			5:01PM0.52m	5:14AM0.15m		5:37PM0.37m	5:45AM0.23m		6:14PM0.23m	6:16AM0.35m		6:53PM0.09m	6:50AM0.50m		7:36PM-0.01m	7:25AM0.66m		8:24PM-0.07m	8:05AM0.81m		9:18PM-0.08m	8:53AM0.95m
Wave Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

	cloudy	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	S	WSW	W	WSW	WSW	SW	SW	WSW	WSW	SW	WSW	WSW	SSW	WSW	SSW	WSW	WSW	SSW	W	WSW	WSW	SW	W	SW	WSW	W	W	WNW	WNW	SW	NE	WSW	SW	SW	WSW	SW	SW	WSW	SW	WSW	WSW	WSW	WSW	WSW	WSW	W	WSW
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	17	19	17	18	20	16	17	19	15	15	16	14	16	17	14	17	19	17	21	22	18	18	19	15	17	19	17	17	19	16	20	21	17	19	21	17	19	21	18	20	22	18	20	23	19	19	22
Moonrise	1:46	—	—	2:40	—	—	—	3:27	—	—	4:08	—	—	4:43	—	—	5:13	—	—	5:39	—	—	6:04	—	—	6:28	—	—	6:53	—	—	7:20	—	—	7:51	—	—	8:28	—	—	—	9:14	—	—	10:10	—	—
Moonset	—	—	10:52	—	—	11:43	—	—	—	12:40	—	—	1:40	—	—	2:43	—	—	3:47	—	—	4:50	—	—	5:55	—	—	7:01	—	—	8:08	—	—	9:19	—	—	10:32	—	—	11:46	—	—	12:58	—	—	2:02	—
	6:52	—	—	6:52	—	—	6:54	—	—	6:54	—	—	6:56	—	—	6:56	—	—	6:56	—	—	6:58	—	—	6:58	—	—	7:00	—	—	7:01	—	—	7:01	—	—	7:03	—	—	7:03	—	—	7:03	—	—	7:05	—
	—	7:14	—	—	7:13	—	—	7:10	—	—	7:09	—	—	7:07	—	—	7:07	—	—	7:05	—	—	7:04	—	—	7:01	—	—	7:00	—	—	6:59	—	—	6:57	—	—	6:55	—	—	6:53	—	—	6:52	—	—	6:51
	Today's sea temperature in Alcatraz Island, San Francisco Bay is 18.8°C (Statistics for 17 Sep 1981-2005 – mean: 14.5 max: 16.8 min: 13.2°C)