RaceAtlas

Half Moon Bay Tides: Thursday, December 17, 2026

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

4.9 ft4:39 AM2.1 ft11:16 AM3.5 ft4:30 PM1.6 ft10:18 PM2 ft4 ft12 AM6 AM12 PM6 PM12 AM
High 4.9 ft at 4:39 AM, low 1.6 ft at 10:18 PM. Gate: flood 2.7 kt at 2:40 AM, ebb 1.1 kt at 9:58 AM.
Modelled current at the Golden Gate on a 2.7 kt floodThe Gate at max flood, 2.7 kt
Tide height
TimeHeight
4:39 AMHigh4.9 ft
11:16 AMLow2.1 ft
4:30 PMHigh3.5 ft
10:18 PMLow1.6 ft
Current · Golden Gate
TimeStateSpeed
2:40 AMmax flood ENE (074°)2.7 kt
7:07 AMslack–
9:58 AMmax ebb SW (235°)1.1 kt
12:56 PMslack–
3:49 PMmax flood ENE (074°)1.5 kt
7:41 PMslack–
9:47 PMmax ebb SW (235°)0.7 kt
11:48 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.