RaceAtlas

Alcatraz Island Tides: Monday, December 21, 2020

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

5.2 ft5:42 AM2.5 ft11:40 AM4.1 ft4:49 PM0.9 ft11:12 PM2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.2 ft at 5:42 AM, low 0.9 ft at 11:12 PM. Gate: flood 2.6 kt at 2:56 AM, ebb 1.1 kt at 10:06 AM.
Modelled current at the Golden Gate on a 2.6 kt floodThe Gate at max flood, 2.6 kt
Tide height
TimeHeight
5:42 AMHigh5.2 ft
11:40 AMLow2.5 ft
4:49 PMHigh4.1 ft
11:12 PMLow0.9 ft
Current · Golden Gate
TimeStateSpeed
2:56 AMmax flood ENE (074°)2.6 kt
7:06 AMslack–
10:06 AMmax ebb SW (235°)1.1 kt
12:12 PMslack–
3:11 PMmax flood ENE (074°)1.6 kt
6:28 PMslack–
8:50 PMmax ebb SW (235°)0.9 kt
11:48 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.