Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 2:08 am (1.9 ft)
Next high tide : in 3h 27m at 7:46 pm (6.6 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - May 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:256.87:525.612:48-0.66:118:01First Quarter1Thu
2Fri6:286.48:585.71:092.51:53-0.46:098:02First Quarter2Fri
3Sat7:436.19:566.12:362.43:01-0.36:088:03First Quarter3Sat
4Sun9:035.810:456.43:552.04:04-0.16:078:03First Quarter4Sun
5Mon10:205.711:296.85:011.45:000.16:068:04Waxing Gibbous5Mon
6Tue11:305.85:570.95:500.36:058:05Waxing Gibbous6Tue
7Wed12:087.112:325.86:460.36:360.66:048:06Waxing Gibbous7Wed
8Thu12:457.31:305.87:32-0.17:191.06:038:07Full Moon8Thu
9Fri1:207.42:235.88:14-0.48:011.36:028:08Full Moon9Fri
10Sat1:547.43:145.88:54-0.68:421.76:018:09Full Moon10Sat
11Sun2:277.34:045.79:34-0.79:242.06:008:10Full Moon11Sun
12Mon3:017.14:535.610:13-0.610:072.35:598:11Waning Gibbous12Mon
13Tue3:356.85:435.510:52-0.510:542.55:588:12Waning Gibbous13Tue
14Wed4:116.56:355.411:34-0.311:482.75:578:13Waning Gibbous14Wed
15Thu4:526.17:295.312:20-0.15:578:13Waning Gibbous15Thu
16Fri5:405.78:235.412:542.81:100.15:568:14Third Quarter16Fri
17Sat6:385.39:125.52:112.72:050.35:558:15Third Quarter17Sat
18Sun7:475.09:545.73:232.43:000.55:548:16Third Quarter18Sun
19Mon9:014.810:316.04:222.13:530.75:538:17Third Quarter19Mon
20Tue10:134.811:046.35:111.64:400.85:538:18Waning Crescent20Tue
21Wed11:184.911:366.75:531.15:241.05:528:19Waning Crescent21Wed
22Thu12:175.16:310.66:051.25:518:19Waning Crescent22Thu
23Fri12:097.01:125.47:080.16:461.45:518:20Waning Crescent23Fri
24Sat12:427.32:055.67:47-0.47:281.75:508:21New Moon24Sat
25Sun1:187.62:575.78:27-0.88:121.95:508:22New Moon25Sun
26Mon1:577.83:495.99:10-1.18:582.15:498:23New Moon26Mon
27Tue2:397.94:425.99:55-1.39:482.35:498:23Waxing Crescent27Tue
28Wed3:257.75:366.010:44-1.310:442.45:488:24Waxing Crescent28Wed
29Thu4:157.56:326.011:36-1.111:492.55:488:25Waxing Crescent29Thu
30Fri5:117.07:296.212:31-0.95:478:25First Quarter30Fri
31Sat6:166.48:256.41:062.41:30-0.55:478:26First Quarter31Sat
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 10:57 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 38% 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 First Quarter (38% 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