RaceAtlas

Alcatraz Island Tides: Sunday, December 20, 2020

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

5.1 ft4:54 AM2.9 ft10:25 AM4.7 ft3:36 PM0.4 ft10:20 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.1 ft at 4:54 AM, low 0.4 ft at 10:20 PM. Gate: flood 2.8 kt at 2:03 AM, ebb 1.1 kt at 7:50 PM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
4:54 AMHigh5.1 ft
10:25 AMLow2.9 ft
3:36 PMHigh4.7 ft
10:20 PMLow0.4 ft
Current · Golden Gate
TimeStateSpeed
2:03 AMmax flood ENE (074°)2.8 kt
6:16 AMslack–
9:01 AMmax ebb SW (235°)1.0 kt
11:07 AMslack–
1:48 PMmax flood ENE (074°)1.8 kt
5:15 PMslack–
7:50 PMmax ebb SW (235°)1.1 kt
11:08 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.