RaceAtlas

Alcatraz Island Tides: Monday, December 13, 2021

Tide heights at Alcatraz Island with the flood, ebb and slack schedule at the Golden Gate.

1.3 ft12:55 AM5.8 ft7:46 AM1.0 ft2:25 PM4.1 ft8:33 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.8 ft at 7:46 AM, low 1.0 ft at 2:25 PM. Gate: flood 2.7 kt at 5:08 AM, ebb 1.5 kt at 12:39 PM.
Modelled current at the Golden Gate on a 2.7 kt floodThe Gate at max flood, 2.7 kt
Tide height
TimeHeight
12:55 AMLow1.3 ft
7:46 AMHigh5.8 ft
2:25 PMLow1.0 ft
8:33 PMHigh4.1 ft
Current · Golden Gate
TimeStateSpeed
1:18 AMslack–
5:08 AMmax flood ENE (074°)2.7 kt
8:59 AMslack–
12:39 PMmax ebb SW (235°)1.5 kt
3:05 PMslack–
6:15 PMmax flood ENE (074°)2.2 kt
9:32 PMslack–
11:38 PMmax ebb SW (235°)0.8 kt

Not for navigation. These are harmonic predictions, not live measurements. Tide heights: station 9414792 (Alcatraz Island). Currents: station SFB1203 (San Francisco Bay Entrance, Golden Gate). · RaceAtlas, the SF Bay current atlas.