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 4h 57m at 3:10 pm (1.0 ft)
Next high tide : 9:39 pm (6.8 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 - Oct 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:116.84:067.710:091.210:56-0.17:046:52Waxing Crescent1Tue
2Wed5:136.34:487.510:571.811:530.07:056:51Waxing Crescent2Wed
3Thu6:215.95:357.211:512.37:066:49Waxing Crescent3Thu
4Fri7:395.66:296.812:540.11:002.77:076:47First Quarter4Fri
5Sat9:025.67:336.52:030.32:242.97:086:46First Quarter5Sat
6Sun10:155.88:436.33:130.43:452.87:096:44First Quarter6Sun
7Mon11:096.09:516.24:170.44:502.57:106:43Waxing Gibbous7Mon
8Tue11:526.210:526.35:120.45:422.27:116:41Waxing Gibbous8Tue
9Wed12:266.35:570.46:251.97:126:40Waxing Gibbous9Wed
10Thu12:556.46:360.57:031.67:136:38Waxing Gibbous10Thu
11Fri12:306.31:206.57:090.67:371.37:146:37Waxing Gibbous11Fri
12Sat1:126.31:436.67:400.88:091.07:156:36Full Moon12Sat
13Sun1:546.22:076.78:091.08:400.87:166:34Full Moon13Sun
14Mon2:356.12:316.88:381.39:120.57:176:33Full Moon14Mon
15Tue3:186.02:576.99:081.69:460.47:186:31Full Moon15Tue
16Wed4:035.83:267.09:401.910:230.27:196:30Waning Gibbous16Wed
17Thu4:535.63:586.910:152.311:060.27:196:28Waning Gibbous17Thu
18Fri5:505.44:376.910:562.611:560.17:206:27Waning Gibbous18Fri
19Sat6:585.35:246.711:492.97:216:26Third Quarter19Sat
20Sun8:135.36:256.512:550.21:023.17:226:24Third Quarter20Sun
21Mon9:235.57:396.42:020.22:313.07:236:23Third Quarter21Mon
22Tue10:185.98:576.43:120.13:512.67:246:22Third Quarter22Tue
23Wed11:036.310:126.54:150.04:542.17:266:20Waning Crescent23Wed
24Thu11:426.711:196.75:100.05:481.57:276:19Waning Crescent24Thu
25Fri12:197.15:590.16:380.87:286:18Waning Crescent25Fri
26Sat12:216.812:557.56:450.37:250.27:296:17New Moon26Sat
27Sun1:216.81:317.87:290.68:12-0.37:306:15New Moon27Sun
28Mon2:186.72:088.08:121.18:59-0.67:316:14New Moon28Mon
29Tue3:156.62:468.08:561.59:47-0.77:326:13New Moon29Tue
30Wed4:136.43:257.89:422.010:35-0.77:336:12Waxing Crescent30Wed
31Thu5:136.14:077.510:312.411:25-0.57:346:11Waxing Crescent31Thu
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 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