RaceAtlas

Alcatraz Island Tides: Thursday, March 19, 2026

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

5.5 ft12:40 AM0.5 ft6:32 AM5.3 ft12:54 PM0.6 ft6:39 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.5 ft at 12:40 AM, low 0.5 ft at 6:32 AM. Gate: flood 3.5 kt at 10:39 PM, ebb 1.7 kt at 4:32 AM.
Modelled current at the Golden Gate on a 3.5 kt floodThe Gate at max flood, 3.5 kt
Tide height
TimeHeight
12:40 AMHigh5.5 ft
6:32 AMLow0.5 ft
12:54 PMHigh5.3 ft
6:39 PMLow0.6 ft
Current · Golden Gate
TimeStateSpeed
1:40 AMslack–
4:32 AMmax ebb SW (235°)1.7 kt
7:46 AMslack–
10:40 AMmax flood ENE (074°)2.9 kt
2:08 PMslack–
4:44 PMmax ebb SW (235°)1.6 kt
7:32 PMslack–
10:39 PMmax flood ENE (074°)3.5 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.