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 —.

	Days 1–4 Weather Summary Heavy rain (total 27mm), heaviest during Thu afternoon. Cool air temperatures (max 14°C on Wed night, min 11°C on Fri night). Winds decreasing (near gales from the SSE on Wed night, calm by Sat afternoon).										Days 5–7 Weather Summary Mostly dry. Cool air temperatures (max 14°C on Tue afternoon, min 7°C on Sun night). Wind will be generally light.									Days 8–10 Weather Summary Heavy rain (total 26mm), heaviest during Fri afternoon. Very mild (max 16°C on Fri afternoon, min 9°C on Tue night). Winds increasing (light winds from the ENE on Thu morning, strong winds from the S by Fri afternoon).									Days 11–13 Weather Summary Mostly dry. Very mild (max 14°C on Sat afternoon, min 9°C on Sun night). Wind will be generally light.
		Thursday 25			Friday 26			Saturday 27			Sunday 28			Monday 29			Tuesday 30			Wednesday 31			Thursday 1			Friday 2			Saturday 3			Sunday 4			Mon 5
	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	3:56AM1.49m		2:28PM1.48m	4:32AM1.56m		3:34PM1.32m	5:09AM1.66m		5:01PM1.19m	5:49AM1.76m		6:44PM1.14m	6:31AM1.88m			8:19PM1.19m	7:17AM1.99m		9:36PM1.29m	8:05AM2.09m		10:39PM1.41m	8:55AM2.15m		11:31PM1.49m	9:48AM2.18m		00:18AM1.54m	10:40AM2.17m		1:02AM1.58m	11:31AM2.11m		1:44AM1.60m	12:22PM1.99m
Low Tide	8:31PM-0.09m	9:01AM0.91m		9:12PM0.03m	10:13AM0.79m		9:56PM0.20m	11:27AM0.60m		10:46PM0.39m	12:35PM0.37m		11:42PM0.59m		1:35PM0.12m	00:42AM0.76m		2:30PM-0.11m	1:43AM0.88m		3:21PM-0.30m	2:44AM0.96m		4:11PM-0.43m	3:42AM0.96m		4:59PM-0.50m	4:38AM0.93m		5:46PM-0.51m	5:34AM0.87m		6:32PM-0.46m	6:29AM0.82m
Wave height (m) direction period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	risk tstorm	rain shwrs	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	cloudy	light rain	mod rain	heavy rain	clear	some clouds	clear	some clouds	clear	clear	some clouds	clear	cloudy
km/h	SSE	SSW	SSE	SW	SSE	WSW	S	NE	NNW	N	NE	NNE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	ENE	ESE	S	SW	NNE	N	NNW	NE	NE	ENE	NE	NNE
mm	10	2	6	2	2	1	4	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	4	7	15	—	—	—	—	—	—	—	—	—
max°C	14	13	14	12	13	13	11	12	13	11	11	12	10	11	12	10	12	14	12	12	13	12	14	15	13	14	16	13	13	14	12	12	14	12	12	13
Moonrise	—	11:02	—	—	11:26	—	—	11:50	—	—	12:16	—	—	12:46	—	—	1:23	—	—	2:09	—	—	—	3:06	—	—	4:14	—	—	5:30	—	—	6:46	—	—	7:59
Moonset	9:35	—	—	10:40	—	—	11:46	—	—	—	12:53	—	—	2:04	—	—	3:19	—	—	4:37	—	—	5:53	—	—	7:03	—	—	8:01	—	—	8:47	—	—	9:23	—
	—	7:22	—	—	7:22	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:24	—
	—	—	4:55	—	—	4:57	—	—	4:57	—	—	4:58	—	—	4:59	—	—	4:59	—	—	5:00	—	—	5:00	—	—	5:01	—	—	5:02	—	—	5:04	—	—	5:05
	Today's sea temperature in Alcatraz Island, San Francisco Bay is 12.4° C (Statistics for 24 Dec 1981-2005 – mean: 12.2 max: 14.9 min: 10.7°C)