RaceAtlas

Half Moon Bay Tides: Monday, December 21, 2026

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

2.6 ft12:48 AM6.6 ft7:15 AM-1.0 ft2:47 PM4.1 ft9:30 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.6 ft at 7:15 AM, low -1.0 ft at 2:47 PM. Gate: flood 2.9 kt at 6:11 AM, ebb 1.7 kt at 12:27 PM.
Modelled current at the Golden Gate on a 2.9 kt floodThe Gate at max flood, 2.9 kt
Tide height
TimeHeight
12:48 AMLow2.6 ft
7:15 AMHigh6.6 ft
2:47 PMLow-1.0 ft
9:30 PMHigh4.1 ft
Current · Golden Gate
TimeStateSpeed
12:44 AMmax ebb SW (235°)0.7 kt
2:50 AMslack–
6:11 AMmax flood ENE (074°)2.9 kt
9:33 AMslack–
12:27 PMmax ebb SW (235°)1.7 kt
4:43 PMslack–
8:03 PMmax flood ENE (074°)2.7 kt
11:49 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.