RaceAtlas

Alcatraz Island Tides: Sunday, March 21, 2021

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

4.9 ft5:22 AM0.6 ft12:57 PM3.9 ft9:03 PM2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 4.9 ft at 5:22 AM, low 0.6 ft at 12:57 PM. Gate: flood 1.8 kt at 3:07 AM, ebb 0.7 kt at 9:27 AM.
Modelled current at the Golden Gate on a 1.8 kt floodThe Gate at max flood, 1.8 kt
Tide height
TimeHeight
5:22 AMHigh4.9 ft
12:57 PMLow0.6 ft
9:03 PMHigh3.9 ft
Current · Golden Gate
TimeStateSpeed
3:07 AMmax flood ENE (074°)1.8 kt
6:45 AMslack–
9:27 AMmax ebb SW (235°)0.7 kt
1:41 PMslack–
6:21 PMmax flood ENE (074°)1.8 kt
10:13 PMslack–
11:23 PMmax ebb SW (235°)0.2 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.