RaceAtlas

Alcatraz Island Tides: Thursday, December 16, 2021

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

2.6 ft3:11 AM6.1 ft9:22 AM-0.2 ft4:25 PM4.5 ft11:26 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.1 ft at 9:22 AM, low -0.2 ft at 4:25 PM. Gate: flood 2.9 kt at 8:49 PM, ebb 1.5 kt at 3:01 PM.
Modelled current at the Golden Gate on a 2.9 kt floodThe Gate at max flood, 2.9 kt
Tide height
TimeHeight
3:11 AMLow2.6 ft
9:22 AMHigh6.1 ft
4:25 PMLow-0.2 ft
11:26 PMHigh4.5 ft
Current · Golden Gate
TimeStateSpeed
1:38 AMmax ebb SW (235°)0.8 kt
3:49 AMslack–
7:10 AMmax flood ENE (074°)2.4 kt
10:38 AMslack–
3:01 PMmax ebb SW (235°)1.5 kt
5:24 PMslack–
8:49 PMmax flood ENE (074°)2.9 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.