RaceAtlas

Alcatraz Island Tides: Saturday, August 21, 2027

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

4.8 ft2:33 AM1.4 ft8:21 AM5.6 ft3:01 PM1.4 ft9:10 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 3:01 PM, low 1.4 ft at 8:21 AM. Gate: flood 3.0 kt at 12:32 PM, ebb 1.4 kt at 6:52 PM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
2:33 AMHigh4.8 ft
8:21 AMLow1.4 ft
3:01 PMHigh5.6 ft
9:10 PMLow1.4 ft
Current · Golden Gate
TimeStateSpeed
12:40 AMmax flood ENE (074°)2.3 kt
4:22 AMslack–
6:53 AMmax ebb SW (235°)1.1 kt
9:13 AMslack–
12:32 PMmax flood ENE (074°)3.0 kt
3:59 PMslack–
6:52 PMmax ebb SW (235°)1.4 kt
10:18 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.