Know the Tide

Know the tide.

West Coast

Napa

Napa River · California · NOAA station 9415623 · Tide predictions

· Pacific Time · Feet / MLLW (mean lower low water)

38.2983, -122.2800

Loading live tide data…

48-hour outlook

Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.

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 · 40 mi SW · Station 46237
Wind & wave reports →

Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 8.7 ft — Thu Jan 21 · 11:44 AM

Lowest predicted low tide: -1.6 ft — Sun Jun 6 · 9:58 AM

Biggest single-day swing: 10.2 ft on Sun Jul 4

Best daytime minus tides of 2027
DateLow tideHeight
Sun Jun 69:58 AM-1.6 ft
Sat Jun 59:10 AM-1.5 ft
Sun Jul 48:57 AM-1.5 ft
Mon Jul 59:43 AM-1.5 ft
Mon Jun 710:47 AM-1.5 ft
Sat Jul 38:10 AM-1.4 ft
Fri Jun 48:24 AM-1.3 ft
Sat May 810:08 AM-1.3 ft
Tue Jul 610:28 AM-1.3 ft
Sun May 910:59 AM-1.3 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 Napa, Napa River from the SAN FRANCISCO (Golden Gate) station: high tides about 1.22× the height, 125 min later; low tides about 0.90× the height, 157 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.

Diurnal range6.9 ft
Mean range5.3 ft
RegionWest Coast
NOAA chart18654
Station since1978