RaceAtlas

Half Moon Bay Tides: Monday, April 21, 2025

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

4.5 ft4:36 AM0.1 ft12:22 PM4.0 ft7:38 PM0 ft2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 4.5 ft at 4:36 AM, low 0.1 ft at 12:22 PM. Gate: flood 2.3 kt at 5:48 PM, ebb 1.1 kt at 10:30 AM.
Modelled current at the Golden Gate on a 2.3 kt floodThe Gate at max flood, 2.3 kt
Tide height
TimeHeight
4:36 AMHigh4.5 ft
12:22 PMLow0.1 ft
7:38 PMHigh4.0 ft
Current · Golden Gate
TimeStateSpeed
1:02 AMslack–
4:00 AMmax flood ENE (074°)1.7 kt
7:23 AMslack–
10:30 AMmax ebb SW (235°)1.1 kt
1:53 PMslack–
5:48 PMmax flood ENE (074°)2.3 kt
10:22 PMslack–

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.