Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 3h 47m at 3:18 pm (2.3 ft)
Next high tide : 9:30 pm (7.8 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - May 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:148.03:585.99:26-1.39:112.06:108:01New Moon1Sat
2Sun2:538.05:005.810:16-1.410:002.46:098:02Waxing Crescent2Sun
3Mon3:367.86:055.711:08-1.310:572.76:088:03Waxing Crescent3Mon
4Tue4:247.47:135.612:03-1.06:078:04Waxing Crescent4Tue
5Wed5:186.88:215.612:062.91:04-0.66:068:05First Quarter5Wed
6Thu6:206.29:235.71:302.92:09-0.36:058:06First Quarter6Thu
7Fri7:325.610:155.92:572.73:120.06:048:06First Quarter7Fri
8Sat8:505.210:566.04:092.34:090.26:038:07First Quarter8Sat
9Sun10:055.011:296.25:081.84:570.56:028:08Waxing Gibbous9Sun
10Mon11:135.011:566.45:571.35:380.86:018:09Waxing Gibbous10Mon
11Tue12:125.06:380.96:141.16:008:10Waxing Gibbous11Tue
12Wed12:216.61:055.07:150.46:471.55:598:11Waxing Gibbous12Wed
13Thu12:446.71:555.17:490.17:191.85:588:12Full Moon13Thu
14Fri1:076.92:425.18:21-0.27:512.25:578:13Full Moon14Fri
15Sat1:327.03:285.28:52-0.48:232.55:568:14Full Moon15Sat
16Sun2:007.14:155.29:25-0.68:572.75:568:15Full Moon16Sun
17Mon2:307.15:025.210:01-0.79:332.95:558:15Waning Gibbous17Mon
18Tue3:057.05:525.210:40-0.710:153.05:548:16Waning Gibbous18Tue
19Wed3:446.86:455.211:25-0.711:063.15:538:17Waning Gibbous19Wed
20Thu4:306.67:395.312:15-0.65:538:18Waning Gibbous20Thu
21Fri5:246.38:305.412:143.11:10-0.55:528:19Third Quarter21Fri
22Sat6:315.99:155.71:382.92:07-0.35:518:20Third Quarter22Sat
23Sun7:495.59:546.13:012.53:03-0.15:518:20Third Quarter23Sun
24Mon9:145.310:316.64:111.83:570.25:508:21Third Quarter24Mon
25Tue10:365.211:067.25:091.14:470.65:508:22Waning Crescent25Tue
26Wed11:535.311:437.76:010.35:351.15:498:23Waning Crescent26Wed
27Thu1:025.56:51-0.56:231.55:498:23Waning Crescent27Thu
28Fri12:208.12:065.77:39-1.07:112.05:488:24New Moon28Fri
29Sat1:008.33:075.88:26-1.48:002.35:488:25New Moon29Sat
30Sun1:428.44:045.99:14-1.68:522.65:478:26New Moon30Sun
31Mon2:268.24:595.910:02-1.59:462.85:478:26Waxing Crescent31Mon
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 6:24 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 28% 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 Waning Crescent (28% 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