West Coast
Georgiana Slough entrance
California · NOAA station 9415287 · Tide predictions
38.1250, -121.5780
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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 · 62 mi W · Station 46237
Wind & wave reports →
Nearby tide stations
- Korths Harbor, San Joaquin River · 2.0 mi S
- Terminous, South Fork · 4.5 mi E
- Prisoners Point · 4.5 mi S
- Steamboat Slough, Snug Harbor Marina · 5.8 mi NW
- Irish Landing, Sand Mound Slough · 6.3 mi S
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 4.1 ft — Sun Jul 4 · 4:58 AM
Lowest predicted low tide: -0.3 ft — Sat Jan 23 · 12:27 AM
Biggest single-day swing: 4.4 ft on Sun Jul 4
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Mon Jun 7 | 3:17 PM | -0.3 ft |
| Sun Jun 6 | 2:32 PM | -0.3 ft |
| Mon Jul 5 | 2:12 PM | -0.3 ft |
| Tue Jun 8 | 4:03 PM | -0.3 ft |
| Tue Jul 6 | 2:52 PM | -0.3 ft |
| Sat Jun 5 | 1:45 PM | -0.3 ft |
| Sun Jul 4 | 1:30 PM | -0.3 ft |
| Wed May 19 | 12:27 PM | -0.2 ft |
| Wed Jun 9 | 4:47 PM | -0.2 ft |
| Thu May 20 | 1:13 PM | -0.2 ft |
154 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 Georgiana Slough entrance from the PORT CHICAGO, SUISUN BAY station: high tides about 0.67× the height, 209 min later; low tides about 0.59× the height, 221 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.