RaceAtlas

Alcatraz Island Tides: Saturday, February 21, 2026

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

5.8 ft1:59 AM0.7 ft8:10 AM4.5 ft2:32 PM1.5 ft7:56 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.8 ft at 1:59 AM, low 0.7 ft at 8:10 AM. Gate: flood 2.6 kt at 12:22 PM, ebb 1.6 kt at 5:50 AM.
Modelled current at the Golden Gate on a 2.6 kt floodThe Gate at max flood, 2.6 kt
Tide height
TimeHeight
1:59 AMHigh5.8 ft
8:10 AMLow0.7 ft
2:32 PMHigh4.5 ft
7:56 PMLow1.5 ft
Current · Golden Gate
TimeStateSpeed
2:57 AMslack–
5:50 AMmax ebb SW (235°)1.6 kt
9:20 AMslack–
12:22 PMmax flood ENE (074°)2.6 kt
4:01 PMslack–
6:35 PMmax ebb SW (235°)1.3 kt
9:02 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.