Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 6, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 4h 38m at 12:48 pm (-0.1 ft)
Next high tide : 7:51 pm (5.6 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:45 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Jun 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:304.86:170.15:332.05:478:26Waning Crescent1Tue
2Wed1:315.16:57-0.46:192.35:468:27Waning Crescent2Wed
3Thu12:077.82:265.47:39-0.97:062.65:468:28New Moon3Thu
4Fri12:488.13:175.68:24-1.37:542.75:468:28New Moon4Fri
5Sat1:348.24:075.79:10-1.58:452.75:458:29New Moon5Sat
6Sun2:228.24:565.89:58-1.69:402.75:458:29Waxing Crescent6Sun
7Mon3:148.05:445.910:47-1.510:422.65:458:30Waxing Crescent7Mon
8Tue4:097.66:326.111:37-1.211:512.55:458:31Waxing Crescent8Tue
9Wed5:087.07:196.312:28-0.85:458:31First Quarter9Wed
10Thu6:146.28:066.61:092.21:20-0.35:458:32First Quarter10Thu
11Fri7:315.48:526.92:291.72:130.35:458:32First Quarter11Fri
12Sat8:584.89:377.33:441.23:060.95:458:33First Quarter12Sat
13Sun10:294.610:197.54:490.64:011.55:448:33Waxing Gibbous13Sun
14Mon11:524.811:007.75:450.14:552.05:448:33Waxing Gibbous14Mon
15Tue1:005.16:34-0.35:472.45:458:34Waxing Gibbous15Tue
16Wed1:585.37:18-0.66:372.75:458:34Waxing Gibbous16Wed
17Thu12:187.72:475.57:58-0.77:242.85:458:34Full Moon17Thu
18Fri12:567.63:315.68:36-0.88:092.95:458:35Full Moon18Fri
19Sat1:337.54:105.69:12-0.88:522.95:458:35Full Moon19Sat
20Sun2:117.34:465.69:47-0.79:332.95:458:35Full Moon20Sun
21Mon2:487.15:205.610:22-0.610:162.95:458:36Waning Gibbous21Mon
22Tue3:266.85:525.610:56-0.411:022.85:468:36Waning Gibbous22Tue
23Wed4:066.46:235.711:31-0.211:542.75:468:36Waning Gibbous23Wed
24Thu4:495.96:555.912:060.15:468:36Waning Gibbous24Thu
25Fri5:405.37:286.112:542.512:420.55:468:36Third Quarter25Fri
26Sat6:424.88:036.42:002.21:221.05:478:36Third Quarter26Sat
27Sun8:044.38:406.73:061.72:071.55:478:36Third Quarter27Sun
28Mon9:424.29:197.14:051.22:581.95:488:36Third Quarter28Mon
29Tue11:154.410:027.54:580.63:552.45:488:36Waning Crescent29Tue
30Wed12:304.85:470.04:532.75:488:36Waning Crescent30Wed
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 4:19 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 transitional phase. Tonight's moon is 66% 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 shifting between spring and neap.

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 Third Quarter (66% illuminated). This places Napa, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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