RaceAtlas

Alcatraz Island Tides: Tuesday, December 28, 2021

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

5.8 ft6:42 AM1.1 ft1:21 PM3.9 ft7:33 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.8 ft at 6:42 AM, low 1.1 ft at 1:21 PM. Gate: flood 3.0 kt at 3:58 AM, ebb 1.3 kt at 10:43 AM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
6:42 AMHigh5.8 ft
1:21 PMLow1.1 ft
7:33 PMHigh3.9 ft
Current · Golden Gate
TimeStateSpeed
12:29 AMslack–
3:58 AMmax flood ENE (074°)3.0 kt
7:51 AMslack–
10:43 AMmax ebb SW (235°)1.3 kt
2:15 PMslack–
5:19 PMmax flood ENE (074°)2.0 kt
9:05 PMslack–
11:11 PMmax ebb SW (235°)0.9 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.