RaceAtlas

Half Moon Bay Tides: Sunday, September 21, 2025

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

0.5 ft4:59 AM5.4 ft11:13 AM1.1 ft5:19 PM5.3 ft11:18 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.4 ft at 11:13 AM, low 0.5 ft at 4:59 AM. Gate: flood 3.4 kt at 10:08 AM, ebb 1.7 kt at 5:06 PM.
Modelled current at the Golden Gate on a 3.4 kt floodThe Gate at max flood, 3.4 kt
Tide height
TimeHeight
4:59 AMLow0.5 ft
11:13 AMHigh5.4 ft
5:19 PMLow1.1 ft
11:18 PMHigh5.3 ft
Current · Golden Gate
TimeStateSpeed
1:09 AMslack–
4:22 AMmax ebb SW (235°)1.6 kt
6:52 AMslack–
10:08 AMmax flood ENE (074°)3.4 kt
1:43 PMslack–
5:06 PMmax ebb SW (235°)1.7 kt
7:37 PMslack–
10:39 PMmax flood ENE (074°)2.8 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.