West Coast
Upper drawbridge
Petaluma River · California · NOAA station 9415584 · Tide predictions
38.2283, -122.6130
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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 · 30 mi S · Station 46237
Wind & wave reports →
Nearby tide stations
- Hog Island, San Antonio Creek · 5.7 mi SE
- Petaluma River entrance · 9.7 mi SE
- Wingo, Sonoma Creek · 10.2 mi E
- Sonoma Creek · 12.2 mi SE
- Reynolds, Tomales Bay · 15.7 mi W
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 8.2 ft — Thu Jan 21 · 11:50 AM
Lowest predicted low tide: -1.5 ft — Sun Jun 6 · 10:20 AM
Biggest single-day swing: 9.6 ft on Sun Jul 4
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jun 6 | 10:20 AM | -1.5 ft |
| Sat Jun 5 | 9:32 AM | -1.4 ft |
| Sun Jul 4 | 9:19 AM | -1.4 ft |
| Mon Jul 5 | 10:05 AM | -1.4 ft |
| Mon Jun 7 | 11:09 AM | -1.4 ft |
| Sat Jul 3 | 8:32 AM | -1.2 ft |
| Fri Jun 4 | 8:46 AM | -1.2 ft |
| Sat May 8 | 10:30 AM | -1.2 ft |
| Tue Jul 6 | 10:50 AM | -1.2 ft |
| Sun May 9 | 11:21 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 Upper drawbridge, Petaluma River from the SAN FRANCISCO (Golden Gate) station: high tides about 1.15× the height, 131 min later; low tides about 0.82× the height, 179 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.