RaceAtlas

San Mateo Bridge Tides: Thursday, August 21, 2025

Tide heights at San Mateo Bridge with the flood, ebb and slack schedule at the Golden Gate.

-0.8 ft6:13 AM6.9 ft12:45 PM2.7 ft6:02 PM8.2 ft11:45 PM0 ft2 ft4 ft6 ft8 ft12 AM6 AM12 PM6 PM12 AM
High 8.2 ft at 11:45 PM, low -0.8 ft at 6:13 AM. Gate: flood 3.2 kt at 9:31 AM, ebb 1.9 kt at 3:59 AM.
Modelled current at the Golden Gate on a 3.2 kt floodThe Gate at max flood, 3.2 kt
Tide height
TimeHeight
6:13 AMLow-0.8 ft
12:45 PMHigh6.9 ft
6:02 PMLow2.7 ft
11:45 PMHigh8.2 ft
Current · Golden Gate
TimeStateSpeed
3:59 AMmax ebb SW (235°)1.9 kt
6:17 AMslack–
9:31 AMmax flood ENE (074°)3.2 kt
1:11 PMslack–
3:57 PMmax ebb SW (235°)1.2 kt
5:56 PMslack–
9:04 PMmax flood ENE (074°)2.7 kt

Not for navigation. These are harmonic predictions, not live measurements. Tide heights: station 9414458 (San Mateo Bridge). Currents: station SFB1203 (San Francisco Bay Entrance, Golden Gate). · RaceAtlas, the SF Bay current atlas.