RaceAtlas

Alcatraz Island Tides: Tuesday, September 21, 2027

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

4.1 ft4:48 AM3.1 ft9:04 AM5.9 ft3:28 PM0.3 ft10:35 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.9 ft at 3:28 PM, low 0.3 ft at 10:35 PM. Gate: flood 2.8 kt at 1:34 PM, ebb 1.4 kt at 7:19 PM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
4:48 AMHigh4.1 ft
9:04 AMLow3.1 ft
3:28 PMHigh5.9 ft
10:35 PMLow0.3 ft
Current · Golden Gate
TimeStateSpeed
1:52 AMmax flood ENE (074°)2.3 kt
6:16 AMslack–
8:15 AMmax ebb SW (235°)0.7 kt
10:11 AMslack–
1:34 PMmax flood ENE (074°)2.8 kt
4:35 PMslack–
7:19 PMmax ebb SW (235°)1.4 kt
11:33 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.