West Coast
Bay Slough
east end · California · NOAA station 9414486 · Tide predictions
37.5450, -122.2220
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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
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
San Francisco Bar, CA (142) buoy · 28 mi NW · Station 46237
Wind & wave reports →
Nearby tide stations
- Bay Slough, west end · 1.2 mi W
- Redwood Creek Marker 8 · 1.8 mi SE
- Corkscrew Slough · 2.6 mi S
- Redwood City, Wharf 5 · 2.7 mi S
- San Mateo Bridge (west end) · 3.0 mi NW
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 9.0 ft — Thu Jan 21 · 10:28 AM
Lowest predicted low tide: -1.4 ft — Sun Jun 6 · 9:13 AM
Biggest single-day swing: 10.3 ft on Sun Jul 4
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jun 6 | 9:13 AM | -1.4 ft |
| Sat Jun 5 | 8:25 AM | -1.3 ft |
| Sun Jul 4 | 8:12 AM | -1.3 ft |
| Mon Jul 5 | 8:58 AM | -1.3 ft |
| Mon Jun 7 | 10:02 AM | -1.3 ft |
| Thu Jan 21 | 6:32 PM | -1.2 ft |
| Sat Jul 3 | 7:25 AM | -1.2 ft |
| Fri Jun 4 | 7:39 AM | -1.1 ft |
| Sat May 8 | 9:23 AM | -1.1 ft |
| Tue Jul 6 | 9:43 AM | -1.1 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, east end from the SAN FRANCISCO (Golden Gate) station: high tides about 1.27× the height, 49 min later; low tides about 0.77× the height, 112 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.