RaceAtlas

Alcatraz Island Tides: Saturday, July 31, 2027

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

-1.0 ft4:46 AM4.7 ft12:03 PM3.0 ft4:17 PM7.1 ft10:27 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 7.1 ft at 10:27 PM, low -1.0 ft at 4:46 AM. Gate: flood 2.9 kt at 9:17 AM, ebb 1.7 kt at 3:01 AM.
Modelled current at the Golden Gate on a 2.9 kt floodThe Gate at max flood, 2.9 kt
Tide height
TimeHeight
4:46 AMLow-1.0 ft
12:03 PMHigh4.7 ft
4:17 PMLow3.0 ft
10:27 PMHigh7.1 ft
Current · Golden Gate
TimeStateSpeed
3:01 AMmax ebb SW (235°)1.7 kt
5:58 AMslack–
9:17 AMmax flood ENE (074°)2.9 kt
1:15 PMslack–
3:25 PMmax ebb SW (235°)0.7 kt
5:16 PMslack–
8:24 PMmax flood ENE (074°)2.8 kt
11:38 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.