RaceAtlas

Alcatraz Island Tides: Friday, April 21, 2028

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

0.9 ft4:37 AM4.3 ft10:43 AM1.2 ft4:21 PM5.3 ft10:47 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.3 ft at 10:47 PM, low 0.9 ft at 4:37 AM. Gate: flood 2.4 kt at 8:21 PM, ebb 1.3 kt at 3:04 AM.
Modelled current at the Golden Gate on a 2.4 kt floodThe Gate at max flood, 2.4 kt
Tide height
TimeHeight
4:37 AMLow0.9 ft
10:43 AMHigh4.3 ft
4:21 PMLow1.2 ft
10:47 PMHigh5.3 ft
Current · Golden Gate
TimeStateSpeed
3:04 AMmax ebb SW (235°)1.3 kt
5:27 AMslack–
8:51 AMmax flood ENE (074°)2.2 kt
12:08 PMslack–
2:18 PMmax ebb SW (235°)0.8 kt
4:49 PMslack–
8:21 PMmax flood ENE (074°)2.4 kt
11:58 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.