West Coast
Petaluma River entrance
California · NOAA station 9415252 · Tide predictions
38.1153, -122.5057
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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 · 24 mi S · Station 46237
Wind & wave reports →
Nearby tide stations
- Hog Island, San Antonio Creek · 4.0 mi NW
- Sonoma Creek · 6.1 mi NE
- Gallinas, Gallinas Creek · 6.9 mi S
- Wingo, Sonoma Creek · 7.8 mi NE
- Point San Pedro · 9.0 mi S
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 7.5 ft — Thu Jan 21 · 11:02 AM
Lowest predicted low tide: -1.5 ft — Sun Jun 6 · 9:29 AM
Biggest single-day swing: 9.0 ft on Sun Jul 4
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jun 6 | 9:29 AM | -1.5 ft |
| Sat Jun 5 | 8:41 AM | -1.5 ft |
| Sun Jul 4 | 8:28 AM | -1.5 ft |
| Mon Jul 5 | 9:14 AM | -1.4 ft |
| Mon Jun 7 | 10:18 AM | -1.4 ft |
| Thu Jan 21 | 6:48 PM | -1.4 ft |
| Sat Jul 3 | 7:41 AM | -1.3 ft |
| Fri Jun 4 | 7:55 AM | -1.3 ft |
| Sat May 8 | 9:39 AM | -1.2 ft |
| Tue Jul 6 | 9:59 AM | -1.2 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 Petaluma River entrance from the SAN FRANCISCO (Golden Gate) station: high tides about 1.06× the height, 83 min later; low tides about 0.86× the height, 128 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.