Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Napa, CA.
Next low tide : 10:55 am (-0.5 ft)
Next high tide : in 1h 24m at 3:31 am (6.8 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Sep 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:338.02:297.28:16-0.38:330.86:397:38Full Moon1Thu
2Fri2:277.83:077.58:580.09:250.56:407:37Full Moon2Fri
3Sat3:227.43:477.89:410.410:180.36:407:35Waning Gibbous3Sat
4Sun4:206.94:297.910:260.911:150.26:417:34Waning Gibbous4Sun
5Mon5:226.35:147.811:141.46:427:32Waning Gibbous5Mon
6Tue6:325.86:057.612:160.312:082.06:437:31Third Quarter6Tue
7Wed7:515.57:037.31:240.41:142.46:447:29Third Quarter7Wed
8Thu9:155.58:077.02:370.42:332.66:457:28Third Quarter8Thu
9Fri10:295.79:156.93:490.43:512.66:467:26Third Quarter9Fri
10Sat11:265.910:196.84:520.44:562.46:467:24Waning Crescent10Sat
11Sun12:116.15:440.45:502.16:477:23Waning Crescent11Sun
12Mon12:486.36:270.46:361.96:487:21Waning Crescent12Mon
13Tue12:046.81:196.47:040.47:161.66:497:20Waning Crescent13Tue
14Wed12:486.81:476.47:360.67:521.46:507:18New Moon14Wed
15Thu1:296.72:126.58:060.78:261.26:517:17New Moon15Thu
16Fri2:096.52:366.68:341.08:591.06:527:15New Moon16Fri
17Sat2:486.33:016.79:021.29:320.96:537:13New Moon17Sat
18Sun3:296.13:286.89:311.510:070.86:537:12Waxing Crescent18Sun
19Mon4:115.83:576.910:021.810:450.76:547:10Waxing Crescent19Mon
20Tue4:585.54:316.810:352.111:300.76:557:09Waxing Crescent20Tue
21Wed5:545.35:116.811:142.46:567:07Waxing Crescent21Wed
22Thu7:015.16:006.712:220.712:052.76:577:05First Quarter22Thu
23Fri8:195.07:016.61:230.61:142.86:587:04First Quarter23Fri
24Sat9:325.28:116.62:320.52:392.86:597:02First Quarter24Sat
25Sun10:305.69:236.73:390.43:562.57:007:01First Quarter25Sun
26Mon11:156.010:317.04:380.24:592.17:006:59Waxing Gibbous26Mon
27Tue11:556.411:337.25:300.15:531.57:016:58Waxing Gibbous27Tue
28Wed12:326.96:170.16:430.97:026:56Waxing Gibbous28Wed
29Thu12:337.31:107.37:020.27:320.47:036:54Full Moon29Thu
30Fri1:307.31:477.77:450.58:21-0.17:046:53Full Moon30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415623)

Common Questions About Napa, CA Tides

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What time does the tide turn (slack tide) in Napa, CA today?

Slack tide in Napa, CA is approximately 7:13 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Napa, CA?

Napa, CA is currently in a spring phase. Tonight's moon is 87% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Napa, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Napa, CA?

Tide predictions for Napa, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Napa, CA?

Tide data for Napa, CA is sourced from NOAA Station #9415623. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415623.

What is the moon phase in Napa, CA tonight?

Tonight the moon over Napa, CA is Waning Gibbous (87% illuminated). This places Napa, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA