RaceAtlas

Alcatraz Island Tides: Saturday, December 13, 2025

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

1.3 ft12:00 AM5.6 ft6:59 AM1.3 ft1:39 PM3.8 ft7:40 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 6:59 AM, low 1.3 ft at 12:00 AM. Gate: flood 2.7 kt at 4:16 AM, ebb 1.3 kt at 11:42 AM.
Modelled current at the Golden Gate on a 2.7 kt floodThe Gate at max flood, 2.7 kt
Tide height
TimeHeight
12:00 AMLow1.3 ft
6:59 AMHigh5.6 ft
1:39 PMLow1.3 ft
7:40 PMHigh3.8 ft
Current · Golden Gate
TimeStateSpeed
12:26 AMslack–
4:16 AMmax flood ENE (074°)2.7 kt
8:11 AMslack–
11:42 AMmax ebb SW (235°)1.3 kt
2:16 PMslack–
5:35 PMmax flood ENE (074°)1.9 kt
8:54 PMslack–
10:58 PMmax ebb SW (235°)0.7 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.