RaceAtlas

Alcatraz Island Tides: Wednesday, August 18, 2021

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

-0.3 ft3:10 AM4.6 ft10:27 AM3.2 ft2:44 PM6.6 ft8:54 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.6 ft at 8:54 PM, low -0.3 ft at 3:10 AM. Gate: flood 2.7 kt at 6:35 PM, ebb 1.3 kt at 12:02 AM.
Modelled current at the Golden Gate on a 2.7 kt floodThe Gate at max flood, 2.7 kt
Tide height
TimeHeight
3:10 AMLow-0.3 ft
10:27 AMHigh4.6 ft
2:44 PMLow3.2 ft
8:54 PMHigh6.6 ft
Current · Golden Gate
TimeStateSpeed
12:02 AMmax ebb SW (235°)1.3 kt
4:11 AMslack–
7:35 AMmax flood ENE (074°)2.5 kt
11:18 AMslack–
1:28 PMmax ebb SW (235°)0.8 kt
3:28 PMslack–
6:35 PMmax flood ENE (074°)2.7 kt
10:07 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.