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 06:03 AM and sunset is at 08:27 PM.

	Days 1–3 Weather Summary Mostly dry. Warm air temperatures (max 20°C on Fri afternoon, min 13°C on Wed night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm air temperatures (max 20°C on Sat afternoon, min 13°C on Sat night). Wind will be generally light.									Days 7–9 Weather Summary Mostly dry. Warm (max 20°C on Wed afternoon, min 12°C on Thu night). Wind will be generally light.									Days 10–12 Weather Summary Mostly dry. Warm (max 21°C on Sat afternoon, min 12°C on Fri night). Wind will be generally light.									Days 13–16 Weather Summary Mostly dry. Warm (max 22°C on Wed afternoon, min 13°C on Mon night). Wind will be generally light.
	Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 1			Sunday 2			Monday 3			Tuesday 4			Wednesday 5			Thu 6
	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	8:08AM1.12m		7:06PM1.77m	9:40AM1.19m		7:54PM1.79m	10:46AM1.28m		8:41PM1.80m		11:35AM1.35m	9:28PM1.83m		12:13PM1.39m	10:11PM1.86m		12:45PM1.41m	10:52PM1.88m		1:15PM1.43m	11:31PM1.88m		1:41PM1.45m	00:10AM1.85m		2:07PM1.48m	00:48AM1.80m		2:33PM1.53m	1:28AM1.72m		2:59PM1.59m	2:12AM1.60m		3:27PM1.66m	3:02AM1.46m		3:57PM1.72m	4:04AM1.31m		4:33PM1.79m		5:28AM1.18m
Low Tide		12:33PM0.83m	2:31AM0.21m		1:40PM0.96m	3:25AM0.11m		2:44PM1.03m	4:11AM0.03m		3:39PM1.05m	4:52AM-0.03m		4:26PM1.03m		5:29AM-0.08m		5:07PM1.00m	6:03AM-0.12m		5:44PM0.95m	6:34AM-0.14m		6:21PM0.90m	7:04AM-0.13m		6:57PM0.84m	7:33AM-0.10m		7:36PM0.77m	8:02AM-0.02m		8:19PM0.69m	8:33AM0.10m		9:08PM0.60m	9:06AM0.27m		10:04PM0.50m	9:42AM0.47m		11:08PM0.39m	10:26AM0.67m
Wave Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

	some clouds	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	clear	some clouds	some clouds	clear	clear	clear	clear	clear	some clouds	some clouds	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	SW	WSW	W	WSW	W	WSW	SW	W	WSW	WSW	W	WSW	SW	WSW	WSW	SW	W	WSW	SW	WSW	SSW	WSW	WSW	SW	SW	WSW	WSW	SW	WSW	SW	WSW	WSW	SW	WSW	WSW	SW	SW	WSW	SW	SW	WSW	WSW	SW	WSW	WSW	SW	WSW
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	17	18	17	16	19	16	17	20	16	18	20	17	17	20	17	17	20	17	17	18	16	18	20	17	16	17	14	16	17	14	18	21	17	18	21	17	17	19	15	17	20	16	19	22	17	20	22
Moonrise	—	3:09	—	—	4:10	—	—	5:09	—	—	6:04	—	—	6:53	—	—	7:35	—	—	8:12	—	—	8:42	—	—	—	9:10	—	—	9:34	—	—	9:57	—	—	10:21	—	—	10:46	—	—	11:14	—	—	11:48	—	—
Moonset	12:26	—	—	12:57	—	—	1:34	—	—	2:17	—	—	3:07	—	—	4:03	—	—	5:03	—	—	6:06	—	—	7:09	—	—	8:12	—	—	9:14	—	—	10:18	—	—	11:22	—	—	12:30	—	—	1:40	—	—	2:53	—
	6:03	—	—	6:05	—	—	6:05	—	—	6:05	—	—	6:07	—	—	6:07	—	—	6:09	—	—	6:09	—	—	6:11	—	—	6:11	—	—	6:11	—	—	6:13	—	—	6:13	—	—	6:15	—	—	6:16	—	—	6:16	—
	—	8:27	—	—	8:25	—	—	8:24	—	—	8:23	—	—	8:23	—	—	8:22	—	—	8:22	—	—	8:21	—	—	8:20	—	—	8:19	—	—	8:17	—	—	8:16	—	—	8:15	—	—	8:15	—	—	8:14	—	—	8:13
	Today's sea temperature in Alcatraz Island, San Francisco Bay is 17.8° C (Statistics for 22 Jul 1981-2005 – mean: 13.5 max: 15.5 min: 11.4°C)