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 07:30 PM.
Days 1–4 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Cool air temperatures (max 16°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Warm air temperatures (max 23°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light. | Days 8–10 Weather SummaryMostly dry. Very mild (max 16°C on Wed afternoon, min 10°C on Mon night). Wind will be generally light. | Days 11–13 Weather SummaryMostly dry. Warm (max 20°C on Sat afternoon, min 10°C on Fri morning). Winds increasing (calm on Thu night, fresh winds from the N by Fri night). | ||||||||||||||||||||||||||||||||||||||||||||
Tue 31 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | ||||||||||||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||||||||||
High Tide | 11:32AM1.58m | 00:06AM1.70m | 12:22PM1.52m | 00:32AM1.72m | 1:10PM1.45m | 00:56AM1.73m | 1:58PM1.39m | 1:20AM1.72m | 2:47PM1.32m | 1:45AM1.70m | 3:40PM1.26m | 2:15AM1.66m | 4:41PM1.20m | 2:52AM1.60m | 5:56PM1.16m | 7:17PM1.16m | 8:20PM1.20m | 5:46AM1.41m | 9:01PM1.26m | 7:01AM1.40m | 9:32PM1.33m | 8:10AM1.41m | 9:58PM1.41m | 9:13AM1.44m | 10:24PM1.51m | 10:11AM1.47m | |||||||||||||||||||||
Low Tide | 5:29PM0.11m | 6:05AM0.14m | 6:03PM0.25m | 6:43AM0.05m | 6:36PM0.40m | 7:20AM-0.01m | 7:08PM0.56m | 7:57AM-0.03m | 7:41PM0.71m | 8:36AM-0.03m | 8:15PM0.84m | 9:18AM0.01m | 8:53PM0.94m | 10:07AM0.05m | 9:44PM1.02m | 11:05AM0.10m | 11:09PM1.05m | 12:12PM0.12m | 00:45AM1.02m | 1:16PM0.10m | 1:55AM0.92m | 2:11PM0.08m | 2:48AM0.78m | 2:57PM0.06m | 3:32AM0.60m | 3:36PM0.07m | 4:12AM0.40m | 4:13PM0.12m | |||||||||||||||||||
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 |  |  | |  |  | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
some clouds | some clouds | cloudy | cloudy | rain shwrs | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | some clouds | some clouds | clear | clear | clear | clear | clear | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | clear | |
km/h | |||||||||||||||||||||||||||||||||||||||||||||||
— | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 16 | 14 | 14 | 15 | 13 | 12 | 14 | 12 | 14 | 19 | 14 | 17 | 23 | 20 | 18 | 18 | 14 | 14 | 14 | 11 | 13 | 15 | 14 | 13 | 16 | 13 | 14 | 15 | 14 | 16 | 19 | 17 | 18 | 20 | 14 | 16 | 18 | 13 | 14 | 18 | 15 | 17 | 20 | 14 | 18 | 22 | 17 |
Moonrise | 6:31 | — | — | 7:33 | — | — | 8:36 | — | — | — | 9:38 | — | — | 10:40 | — | — | 11:42 | — | — | — | 12:40 | — | — | 1:34 | — | — | 2:21 | — | — | 3:02 | — | — | 3:37 | — | — | 4:07 | — | — | 4:34 | — | — | 5:00 | — | — | 5:25 | — | — |
Moonset | — | — | 6:32 | — | — | 6:55 | — | — | 7:20 | — | — | 7:48 | — | — | 8:21 | — | — | 8:59 | — | — | 9:43 | — | — | 10:35 | — | — | 11:33 | — | — | 12:34 | — | — | 1:39 | — | — | 2:44 | — | — | — | 3:50 | — | — | 4:57 | — | — | 6:07 | — |
 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — |
 | 7:30 | — | — | 7:31 | — | — | 7:32 | — | — | 7:34 | — | — | 7:35 | — | — | 7:35 | — | — | 7:36 | — | — | 7:37 | — | — | 7:37 | — | — | 7:38 | — | — | 7:39 | — | — | 7:40 | — | — | 7:42 | — | — | 7:43 | — | — | 7:44 | — | — | 7:45 | — |
Today's sea temperature in Alcatraz Island, San Francisco Bay is 16.8° C (Statistics for 31 Mar 1981-2005 – mean: 11.9 max: 14.0 min: 10.7°C) | |||||||||||||||||||||||||||||||||||||||||||||||
Forecast update inUpdates in hr min sUpdate imminent
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