Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 3h 46m at 6:55 pm (3.0 ft)
Next high tide (tomorrow) : 12:23 am (7.4 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Sep 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:527.22:306.18:040.08:042.26:397:38Full Moon1Sat
2Sun1:317.22:566.28:350.18:382.06:397:37Full Moon2Sun
3Mon2:087.03:206.29:040.39:111.86:407:35Full Moon3Mon
4Tue2:466.83:456.39:320.59:451.66:417:34Full Moon4Tue
5Wed3:246.54:106.410:000.710:221.56:427:32Waning Gibbous5Wed
6Thu4:066.14:386.610:301.111:021.36:437:31Waning Gibbous6Thu
7Fri4:525.75:086.711:021.511:491.26:447:29Waning Gibbous7Fri
8Sat5:495.35:446.711:391.96:457:28Waning Gibbous8Sat
9Sun7:025.06:296.812:441.112:252.46:457:26Third Quarter9Sun
10Mon8:354.97:246.81:490.91:282.86:467:25Third Quarter10Mon
11Tue10:065.18:287.03:020.62:483.06:477:23Third Quarter11Tue
12Wed11:145.49:367.34:110.34:062.96:487:21Waning Crescent12Wed
13Thu12:035.85:12-0.15:112.66:497:20Waning Crescent13Thu
14Fri12:446.26:05-0.46:062.26:507:18Waning Crescent14Fri
15Sat1:236.56:53-0.66:581.86:517:17Waning Crescent15Sat
16Sun12:388.01:596.87:38-0.67:481.36:517:15New Moon16Sun
17Mon1:338.02:367.18:21-0.48:380.86:527:14New Moon17Mon
18Tue2:287.73:137.49:030.09:290.56:537:12New Moon18Tue
19Wed3:247.33:507.59:450.510:210.36:547:10Waxing Crescent19Wed
20Thu4:216.84:297.510:291.011:150.26:557:09Waxing Crescent20Thu
21Fri5:246.25:117.411:151.76:567:07Waxing Crescent21Fri
22Sat6:355.75:577.212:130.312:082.26:577:06First Quarter22Sat
23Sun7:575.56:506.81:180.41:162.76:587:04First Quarter23Sun
24Mon9:255.57:536.62:280.42:392.96:587:02First Quarter24Mon
25Tue10:395.79:016.43:380.53:592.96:597:01First Quarter25Tue
26Wed11:325.910:066.44:410.45:022.77:006:59Waxing Gibbous26Wed
27Thu12:146.15:330.45:522.47:016:58Waxing Gibbous27Thu
28Fri12:476.26:160.36:342.17:026:56Waxing Gibbous28Fri
29Sat1:156.36:530.47:111.87:036:55Waxing Gibbous29Sat
30Sun12:366.61:406.37:260.47:451.57:046:53Full Moon30Sun
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 9:39 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 96% 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 Waxing Gibbous (96% 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