RaceAtlas

Half Moon Bay Tides: Friday, August 21, 2026

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

0.9 ft12:57 AM3.6 ft8:22 AM3.3 ft11:39 AM5.2 ft6:03 PM2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 5.2 ft at 6:03 PM, low 0.9 ft at 12:57 AM. Gate: flood 2.0 kt at 6:31 AM, ebb 0.4 kt at 11:42 AM.
Modelled current at the Golden Gate on a 2.0 kt floodThe Gate at max flood, 2.0 kt
Tide height
TimeHeight
12:57 AMLow0.9 ft
8:22 AMHigh3.6 ft
11:39 AMLow3.3 ft
6:03 PMHigh5.2 ft
Current · Golden Gate
TimeStateSpeed
2:23 AMslack–
6:31 AMmax flood ENE (074°)2.0 kt
10:07 AMslack–
11:42 AMmax ebb SW (235°)0.4 kt
1:25 PMslack–
4:39 PMmax flood ENE (074°)1.6 kt
8:41 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.