RaceAtlas

Alcatraz Island Tides: Sunday, July 19, 2026

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

4.9 ft3:48 AM0.6 ft10:00 AM5.7 ft4:58 PM1.7 ft11:13 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.7 ft at 4:58 PM, low 0.6 ft at 10:00 AM. Gate: flood 3.2 kt at 2:10 PM, ebb 1.4 kt at 8:05 AM.
Modelled current at the Golden Gate on a 3.2 kt floodThe Gate at max flood, 3.2 kt
Tide height
TimeHeight
3:48 AMHigh4.9 ft
10:00 AMLow0.6 ft
4:58 PMHigh5.7 ft
11:13 PMLow1.7 ft
Current · Golden Gate
TimeStateSpeed
1:56 AMmax flood ENE (074°)2.2 kt
5:20 AMslack–
8:05 AMmax ebb SW (235°)1.4 kt
10:53 AMslack–
2:10 PMmax flood ENE (074°)3.2 kt
6:11 PMslack–
9:19 PMmax ebb SW (235°)1.3 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.