RaceAtlas

Alcatraz Island Tides: Tuesday, September 22, 2026

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

0.4 ft3:36 AM4.8 ft10:40 AM2.6 ft3:47 PM5.4 ft9:27 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.4 ft at 9:27 PM, low 0.4 ft at 3:36 AM. Gate: flood 2.4 kt at 8:23 AM, ebb 0.9 kt at 12:44 AM.
Modelled current at the Golden Gate on a 2.4 kt floodThe Gate at max flood, 2.4 kt
Tide height
TimeHeight
3:36 AMLow0.4 ft
10:40 AMHigh4.8 ft
3:47 PMLow2.6 ft
9:27 PMHigh5.4 ft
Current · Golden Gate
TimeStateSpeed
12:44 AMmax ebb SW (235°)0.9 kt
4:17 AMslack–
8:23 AMmax flood ENE (074°)2.4 kt
12:05 PMslack–
2:21 PMmax ebb SW (235°)0.7 kt
4:15 PMslack–
7:16 PMmax flood ENE (074°)1.7 kt
10:49 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.