Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 2h 02m at 3:53 am (1.6 ft)
Next high tide : 8:58 am (4.6 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:45 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - May 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:115.810:385.83:182.73:38-0.26:118:01First Quarter1Fri
2Sat9:305.811:176.24:262.14:35-0.26:108:01Waxing Gibbous2Sat
3Sun10:445.911:536.75:231.55:260.06:088:02Waxing Gibbous3Sun
4Mon11:536.06:140.86:140.26:078:03Waxing Gibbous4Mon
5Tue12:287.112:566.17:030.16:590.56:068:04Waxing Gibbous5Tue
6Wed1:047.51:576.17:51-0.57:431.06:058:05Full Moon6Wed
7Thu1:407.82:566.18:38-1.08:281.46:048:06Full Moon7Thu
8Fri2:198.03:556.09:26-1.39:151.86:038:07Full Moon8Fri
9Sat2:597.94:555.910:15-1.310:052.26:028:08Waning Gibbous9Sat
10Sun3:427.65:575.811:05-1.211:022.56:018:09Waning Gibbous10Sun
11Mon4:287.27:015.711:58-0.96:008:10Waning Gibbous11Mon
12Tue5:196.68:075.712:092.812:55-0.65:598:11Third Quarter12Tue
13Wed6:196.09:085.71:302.81:56-0.25:588:12Third Quarter13Wed
14Thu7:275.510:005.92:532.62:570.15:588:12Third Quarter14Thu
15Fri8:435.110:436.04:042.33:530.35:578:13Third Quarter15Fri
16Sat9:585.011:176.25:031.84:430.65:568:14Waning Crescent16Sat
17Sun11:054.911:466.45:511.45:260.85:558:15Waning Crescent17Sun
18Mon12:045.06:320.96:051.15:548:16Waning Crescent18Mon
19Tue12:116.612:575.07:090.56:401.45:548:17Waning Crescent19Tue
20Wed12:366.81:465.17:430.27:141.75:538:18New Moon20Wed
21Thu1:026.92:335.28:15-0.17:472.05:528:18New Moon21Thu
22Fri1:307.13:195.38:46-0.48:212.35:518:19New Moon22Fri
23Sat1:597.24:055.49:19-0.68:572.55:518:20New Moon23Sat
24Sun2:317.24:515.49:55-0.79:362.75:508:21Waxing Crescent24Sun
25Mon3:077.15:405.410:35-0.810:202.95:508:22Waxing Crescent25Mon
26Tue3:477.06:325.411:19-0.811:132.95:498:22Waxing Crescent26Tue
27Wed4:336.77:255.512:08-0.75:498:23Waxing Crescent27Wed
28Thu5:286.48:185.712:202.91:02-0.55:488:24First Quarter28Thu
29Fri6:345.99:066.01:402.72:00-0.35:488:25First Quarter29Fri
30Sat7:525.69:496.43:002.32:580.05:478:25First Quarter30Sat
31Sun9:165.310:306.94:101.73:540.35:478:26First Quarter31Sun
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 6:25 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 transitional phase. Tonight's moon is 35% 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 (35% 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