RaceAtlas

Alcatraz Island Tides: Thursday, December 21, 2028

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

5.0 ft3:55 AM2.7 ft9:25 AM4.6 ft2:42 PM0.5 ft9:17 PM2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.0 ft at 3:55 AM, low 0.5 ft at 9:17 PM. Gate: flood 2.8 kt at 1:18 AM, ebb 1.2 kt at 7:11 PM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
3:55 AMHigh5.0 ft
9:25 AMLow2.7 ft
2:42 PMHigh4.6 ft
9:17 PMLow0.5 ft
Current · Golden Gate
TimeStateSpeed
1:18 AMmax flood ENE (074°)2.8 kt
5:37 AMslack–
8:13 AMmax ebb SW (235°)1.0 kt
10:28 AMslack–
1:09 PMmax flood ENE (074°)1.8 kt
4:36 PMslack–
7:11 PMmax ebb SW (235°)1.2 kt
10:14 PMslack–

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.