RaceAtlas

Alcatraz Island Tides: Thursday, July 30, 2026

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

6.1 ft12:11 AM-0.5 ft7:03 AM4.9 ft2:07 PM2.8 ft6:55 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.1 ft at 12:11 AM, low -0.5 ft at 7:03 AM. Gate: flood 2.8 kt at 11:15 AM, ebb 1.7 kt at 4:26 AM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
12:11 AMHigh6.1 ft
7:03 AMLow-0.5 ft
2:07 PMHigh4.9 ft
6:55 PMLow2.8 ft
Current · Golden Gate
TimeStateSpeed
1:24 AMslack–
4:26 AMmax ebb SW (235°)1.7 kt
7:59 AMslack–
11:15 AMmax flood ENE (074°)2.8 kt
3:33 PMslack–
5:52 PMmax ebb SW (235°)0.9 kt
8:01 PMslack–
10:52 PMmax flood ENE (074°)2.4 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.