RaceAtlas

Half Moon Bay Tides: Tuesday, October 21, 2025

Tide heights at Half Moon Bay with the flood, ebb and slack schedule at the Golden Gate.

1.7 ft4:45 AM5.7 ft10:47 AM0.0 ft5:38 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.7 ft at 10:47 AM, low 0.0 ft at 5:38 PM. Gate: flood 2.9 kt at 11:11 PM, ebb 1.6 kt at 4:20 PM.
Modelled current at the Golden Gate on a 2.9 kt floodThe Gate at max flood, 2.9 kt
Tide height
TimeHeight
4:45 AMLow1.7 ft
10:47 AMHigh5.7 ft
5:38 PMLow0.0 ft
Current · Golden Gate
TimeStateSpeed
1:56 AMslack–
4:21 AMmax ebb SW (235°)1.2 kt
6:46 AMslack–
9:55 AMmax flood ENE (074°)2.8 kt
1:18 PMslack–
4:20 PMmax ebb SW (235°)1.6 kt
7:51 PMslack–
11:11 PMmax flood ENE (074°)2.9 kt

Not for navigation. These are harmonic predictions, not live measurements. Tide heights: station 9414131 (Half Moon Bay). Currents: station SFB1203 (San Francisco Bay Entrance, Golden Gate). · RaceAtlas, the SF Bay current atlas.