RaceAtlas

Alcatraz Island Tides: Thursday, February 18, 2021

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

5.2 ft3:50 AM1.4 ft10:44 AM3.5 ft5:12 PM2.6 ft9:59 PM2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.2 ft at 3:50 AM, low 1.4 ft at 10:44 AM. Gate: flood 2.2 kt at 1:19 AM, ebb 0.8 kt at 7:55 AM.
Modelled current at the Golden Gate on a 2.2 kt floodThe Gate at max flood, 2.2 kt
Tide height
TimeHeight
3:50 AMHigh5.2 ft
10:44 AMLow1.4 ft
5:12 PMHigh3.5 ft
9:59 PMLow2.6 ft
Current · Golden Gate
TimeStateSpeed
1:19 AMmax flood ENE (074°)2.2 kt
5:29 AMslack–
7:55 AMmax ebb SW (235°)0.8 kt
11:39 AMslack–
3:42 PMmax flood ENE (074°)1.7 kt
7:12 PMslack–
8:47 PMmax ebb SW (235°)0.5 kt
10:40 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.