Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Napa, CA.
Next low tide : 11:01 pm (2.7 ft)
Next high tide : in 2h 08m at 5:46 pm (5.8 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 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:336.36:070.06:072.16:387:39Waning Crescent1Fri
2Sat1:136.56:520.06:561.86:397:37Waning Crescent2Sat
3Sun12:317.41:496.67:310.17:401.66:407:36New Moon3Sun
4Mon1:177.22:226.68:070.38:201.46:417:34New Moon4Mon
5Tue2:007.02:516.78:400.58:581.36:427:33New Moon5Tue
6Wed2:416.73:196.79:110.79:351.26:437:31New Moon6Wed
7Thu3:216.43:466.79:421.110:121.16:447:29Waxing Crescent7Thu
8Fri4:036.14:146.710:141.410:501.16:457:28Waxing Crescent8Fri
9Sat4:475.74:456.710:471.811:331.16:457:26Waxing Crescent9Sat
10Sun5:375.35:206.611:232.16:467:25Waxing Crescent10Sun
11Mon6:375.06:036.512:221.112:062.46:477:23First Quarter11Mon
12Tue7:534.96:566.41:201.11:052.76:487:22First Quarter12Tue
13Wed9:154.97:576.42:271.02:222.86:497:20First Quarter13Wed
14Thu10:245.19:026.53:330.83:392.86:507:18First Quarter14Thu
15Fri11:135.510:056.74:310.64:412.56:517:17Waxing Gibbous15Fri
16Sat11:535.811:037.05:210.45:322.26:517:15Waxing Gibbous16Sat
17Sun12:286.26:050.26:181.76:527:14Waxing Gibbous17Sun
18Mon1:036.66:470.17:031.36:537:12Waxing Gibbous18Mon
19Tue12:507.41:377.07:280.17:480.86:547:11Full Moon19Tue
20Wed1:437.42:137.48:080.38:350.36:557:09Full Moon20Wed
21Thu2:367.32:517.78:500.69:240.06:567:07Full Moon21Thu
22Fri3:327.03:317.99:330.910:15-0.26:577:06Waning Gibbous22Fri
23Sat4:306.64:157.910:191.411:10-0.26:587:04Waning Gibbous23Sat
24Sun5:336.25:047.811:101.86:587:03Waning Gibbous24Sun
25Mon6:435.95:597.512:10-0.112:112.26:597:01Third Quarter25Mon
26Tue7:595.77:027.11:180.11:252.57:007:00Third Quarter26Tue
27Wed9:165.88:136.82:310.22:492.57:016:58Third Quarter27Wed
28Thu10:226.09:256.73:420.34:062.37:026:56Third Quarter28Thu
29Fri11:156.310:336.64:440.35:092.07:036:55Waning Crescent29Fri
30Sat11:596.511:326.65:360.46:021.67:046:53Waning Crescent30Sat
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 8:23 pm — 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