Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 2h 49m at 5:20 pm (2.6 ft)
Next high tide : 11:09 pm (7.4 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Sep 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:277.14:147.010:030.310:331.16:397:38Waning Gibbous1Wed
2Thu4:196.54:467.010:400.911:241.06:407:37Waning Gibbous2Thu
3Fri5:165.85:197.011:181.56:407:35Waning Gibbous3Fri
4Sat6:215.35:556.812:180.911:59 AM2.16:417:33Third Quarter4Sat
5Sun7:454.96:366.71:170.912:512.76:427:32Third Quarter5Sun
6Mon9:294.97:286.52:250.92:033.16:437:30Third Quarter6Mon
7Tue10:565.28:316.53:360.83:293.26:447:29Third Quarter7Tue
8Wed11:515.59:356.54:400.74:393.16:457:27Waning Crescent8Wed
9Thu12:305.75:340.55:332.96:467:26Waning Crescent9Thu
10Fri1:015.86:180.36:162.76:477:24Waning Crescent10Fri
11Sat1:275.96:550.16:542.46:477:23Waning Crescent11Sat
12Sun12:117.11:526.17:280.07:292.16:487:21New Moon12Sun
13Mon12:547.12:166.37:580.18:031.86:497:19New Moon13Mon
14Tue1:367.12:416.58:270.28:391.46:507:18New Moon14Tue
15Wed2:206.93:076.88:560.49:181.16:517:16New Moon15Wed
16Thu3:066.73:347.09:270.810:000.76:527:15Waxing Crescent16Thu
17Fri3:566.34:037.210:001.210:460.56:537:13Waxing Crescent17Fri
18Sat4:535.94:377.410:361.811:390.36:537:12Waxing Crescent18Sat
19Sun6:015.45:187.411:182.36:547:10Waxing Crescent19Sun
20Mon7:265.16:097.312:400.212:102.86:557:08First Quarter20Mon
21Tue9:035.17:147.21:510.11:253.16:567:07First Quarter21Tue
22Wed10:265.48:307.23:090.03:033.26:577:05First Quarter22Wed
23Thu11:245.89:467.24:21-0.14:272.96:587:04Waxing Gibbous23Thu
24Fri12:086.15:22-0.35:312.56:597:02Waxing Gibbous24Fri
25Sat12:456.46:14-0.36:252.07:007:00Waxing Gibbous25Sat
26Sun1:206.76:58-0.37:141.57:006:59Full Moon26Sun
27Mon12:517.31:526.97:380.08:001.07:016:57Full Moon27Mon
28Tue1:437.12:227.18:150.38:430.77:026:56Full Moon28Tue
29Wed2:346.82:517.28:500.89:260.57:036:54Full Moon29Wed
30Thu3:256.43:207.29:251.310:080.37:046:53Waning Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415623)

Common Questions About Napa, CA Tides

Show All
What time does the tide turn (slack tide) in Napa, CA today?

Slack tide in Napa, CA is approximately 8:14 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 85% 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 (85% 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