RaceAtlas

Alcatraz Island Tides: Saturday, August 15, 2026

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

5.9 ft1:46 AM0.1 ft8:01 AM5.8 ft2:47 PM1.4 ft8:34 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.9 ft at 1:46 AM, low 0.1 ft at 8:01 AM. Gate: flood 3.5 kt at 12:15 PM, ebb 1.7 kt at 6:21 AM.
Modelled current at the Golden Gate on a 3.5 kt floodThe Gate at max flood, 3.5 kt
Tide height
TimeHeight
1:46 AMHigh5.9 ft
8:01 AMLow0.1 ft
2:47 PMHigh5.8 ft
8:34 PMLow1.4 ft
Current · Golden Gate
TimeStateSpeed
3:13 AMslack–
6:21 AMmax ebb SW (235°)1.7 kt
9:06 AMslack–
12:15 PMmax flood ENE (074°)3.5 kt
3:57 PMslack–
7:20 PMmax ebb SW (235°)1.6 kt
9:52 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.