RaceAtlas

Half Moon Bay Tides: Thursday, May 21, 2026

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

5.6 ft1:58 AM-1.0 ft9:32 AM4.2 ft4:46 PM2.8 ft9:31 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 1:58 AM, low -1.0 ft at 9:32 AM. Gate: flood 2.8 kt at 2:42 PM, ebb 1.5 kt at 7:42 AM.
Modelled current at the Golden Gate on a 2.8 kt floodThe Gate at max flood, 2.8 kt
Tide height
TimeHeight
1:58 AMHigh5.6 ft
9:32 AMLow-1.0 ft
4:46 PMHigh4.2 ft
9:31 PMLow2.8 ft
Current · Golden Gate
TimeStateSpeed
1:11 AMmax flood ENE (074°)2.6 kt
4:22 AMslack–
7:42 AMmax ebb SW (235°)1.5 kt
11:28 AMslack–
2:42 PMmax flood ENE (074°)2.8 kt
7:02 PMslack–
9:19 PMmax ebb SW (235°)0.8 kt
11:21 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.