RaceAtlas

Alcatraz Island Tides: Tuesday, July 20, 2027

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

5.9 ft12:42 AM-0.3 ft7:35 AM4.8 ft2:42 PM2.8 ft7:33 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.9 ft at 12:42 AM, low -0.3 ft at 7:35 AM. Gate: flood 2.8 kt at 12:07 PM, ebb 1.6 kt at 5:07 AM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
12:42 AMHigh5.9 ft
7:35 AMLow-0.3 ft
2:42 PMHigh4.8 ft
7:33 PMLow2.8 ft
Current · Golden Gate
TimeStateSpeed
2:09 AMslack–
5:07 AMmax ebb SW (235°)1.6 kt
8:41 AMslack–
12:07 PMmax flood ENE (074°)2.8 kt
4:19 PMslack–
6:44 PMmax ebb SW (235°)0.9 kt
8:45 PMslack–
11:33 PMmax flood ENE (074°)2.1 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.