RaceAtlas

Alcatraz Island Tides: Tuesday, December 21, 2027

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

6.0 ft6:10 AM0.9 ft12:58 PM3.9 ft7:07 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.0 ft at 6:10 AM, low 0.9 ft at 12:58 PM. Gate: flood 3.0 kt at 3:18 AM, ebb 1.5 kt at 10:51 AM.
Modelled current at the Golden Gate on a 3.0 kt floodThe Gate at max flood, 3.0 kt
Tide height
TimeHeight
6:10 AMHigh6.0 ft
12:58 PMLow0.9 ft
7:07 PMHigh3.9 ft
Current · Golden Gate
TimeStateSpeed
3:18 AMmax flood ENE (074°)3.0 kt
7:11 AMslack–
10:51 AMmax ebb SW (235°)1.5 kt
1:33 PMslack–
4:44 PMmax flood ENE (074°)2.1 kt
8:15 PMslack–
10:30 PMmax ebb SW (235°)0.9 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.