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 06:11 AM and sunset is at 08:00 PM.
Days 1–3 Weather SummaryHeavy rain (total 20mm), heaviest during Sat morning. Cool air temperatures (max 18°C on Thu afternoon, min 8°C on Sat night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Cool air temperatures (max 15°C on Tue afternoon, min 8°C on Sun night). Wind will be generally light. | Days 7–9 Weather SummaryMostly dry. Warm (max 22°C on Thu afternoon, min 11°C on Wed night). Wind will be generally light. | Days 10–12 Weather SummaryMostly dry. Very mild (max 15°C on Sun afternoon, min 10°C on Sat night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||||||||||||
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 | 6:53AM1.46m | 8:58PM1.51m | 8:13AM1.44m | 9:33PM1.63m | 9:28AM1.45m | 10:07PM1.76m | 10:36AM1.46m | 10:41PM1.87m | 11:40AM1.47m | 11:15PM1.95m | 12:41PM1.47m | 11:51PM1.99m | 1:40PM1.45m | 00:29AM1.98m | 2:39PM1.43m | 1:08AM1.93m | 3:38PM1.39m | 1:51AM1.84m | 4:39PM1.37m | 2:38AM1.72m | 5:41PM1.35m | 6:40PM1.36m | ||||||||||||||
Low Tide | 1:38PM-0.07m | 2:31AM0.64m | 2:31PM-0.01m | 3:27AM0.38m | 3:20PM0.09m | 4:18AM0.11m | 4:06PM0.22m | 5:06AM-0.13m | 4:51PM0.36m | 5:53AM-0.33m | 5:35PM0.51m | 6:38AM-0.45m | 6:20PM0.65m | 7:24AM-0.49m | 7:07PM0.78m | 8:11AM-0.46m | 7:58PM0.87m | 9:00AM-0.37m | 8:56PM0.94m | 9:53AM-0.26m | 10:04PM0.98m | 10:49AM-0.13m | 11:22PM0.95m | |||||||||||||
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 | |  | | |  |  |  | | | | | |  | | | | | | | | | | | | | | | | | | | | | | | |
clear | clear | clear | clear | clear | cloudy | heavy rain | rain shwrs | clear | clear | clear | clear | clear | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | 18 | 2.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 16 | 18 | 13 | 15 | 16 | 13 | 12 | 11 | 10 | 11 | 12 | 10 | 11 | 13 | 11 | 13 | 15 | 13 | 15 | 17 | 14 | 18 | 22 | 16 | 16 | 17 | 13 | 14 | 14 | 12 | 13 | 15 | 12 | 13 | 15 | 12 |
Moonrise | 3:16 | — | — | 3:46 | — | — | 4:13 | — | — | 4:40 | — | — | 5:07 | — | — | 5:37 | — | — | 6:13 | — | — | 6:55 | — | — | 7:45 | — | — | 8:43 | — | — | 9:45 | — | — | 10:50 | — | — |
Moonset | 1:55 | — | — | — | 3:09 | — | — | 4:22 | — | — | 5:35 | — | — | 6:50 | — | — | 8:06 | — | — | — | 9:22 | — | — | 10:34 | — | — | 11:38 | — | — | — | 12:33 | — | — | 1:17 | — | — |
 | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — | 6:00 | — | — |
 | — | 8:00 | — | — | 8:01 | — | — | 8:02 | — | — | 8:04 | — | — | 8:05 | — | — | 8:06 | — | — | 8:07 | — | — | 8:07 | — | — | 8:07 | — | — | 8:08 | — | — | 8:09 | — | — | 8:10 | — |
Today's sea temperature in Alcatraz Island, San Francisco Bay is 15.2 °C (Statistics for 02 May 1981-2005 – mean: 11.9 max: 14.2 min: 10.2°C) | ||||||||||||||||||||||||||||||||||||
Nearest