RaceAtlas

Alcatraz Island Tides: Wednesday, June 17, 2026

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

6.8 ft1:10 AM-1.7 ft8:16 AM5.0 ft3:36 PM2.9 ft8:11 PM-2 ft0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.8 ft at 1:10 AM, low -1.7 ft at 8:16 AM. Gate: flood 3.2 kt at 12:40 PM, ebb 1.9 kt at 5:51 AM.
Modelled current at the Golden Gate on a 3.2 kt floodThe Gate at max flood, 3.2 kt
Tide height
TimeHeight
1:10 AMHigh6.8 ft
8:16 AMLow-1.7 ft
3:36 PMHigh5.0 ft
8:11 PMLow2.9 ft
Current · Golden Gate
TimeStateSpeed
2:20 AMslack–
5:51 AMmax ebb SW (235°)1.9 kt
9:31 AMslack–
12:40 PMmax flood ENE (074°)3.2 kt
4:46 PMslack–
7:14 PMmax ebb SW (235°)0.9 kt
9:09 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.