West Coast
Bay Slough
west end · California · NOAA station 9414483 · Tide predictions
37.5517, -122.2430
Loading live tide data…
48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
The next seven days
Loading…
H = high tide · L = low tide · highs & lows in local time
On the water nearby
San Francisco Bar, CA (142) buoy · 27 mi NW · Station 46237
Wind & wave reports →
Nearby tide stations
- Bay Slough, east end · 1.2 mi E
- San Mateo Bridge (west end) · 2.0 mi N
- Redwood Creek Marker 8 · 3.0 mi SE
- Corkscrew Slough · 3.5 mi SE
- Redwood City, Wharf 5 · 3.5 mi SE
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 9.6 ft — Thu Jan 21 · 10:27 AM
Lowest predicted low tide: -1.8 ft — Sun Jun 6 · 8:49 AM
Biggest single-day swing: 11.3 ft on Sun Jul 4
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jun 6 | 8:49 AM | -1.8 ft |
| Sat Jun 5 | 8:01 AM | -1.7 ft |
| Sun Jul 4 | 7:48 AM | -1.7 ft |
| Mon Jul 5 | 8:34 AM | -1.7 ft |
| Mon Jun 7 | 9:38 AM | -1.7 ft |
| Thu Jan 21 | 6:08 PM | -1.6 ft |
| Fri Jan 22 | 6:52 PM | -1.6 ft |
| Sat Jul 3 | 7:01 AM | -1.5 ft |
| Fri Jun 4 | 7:15 AM | -1.5 ft |
| Sat May 8 | 8:59 AM | -1.4 ft |
189 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
About this station
NOAA builds the predictions for Bay Slough, west end from the SAN FRANCISCO (Golden Gate) station: high tides about 1.35× the height, 48 min later; low tides about the same height, 88 min later.
Mixed semidiurnal tides — two unequal highs and two unequal lows a day — with ranges growing as you head north. Harbor entrances feel the swell as much as the tide.