Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Napa, CA.
Next low tide : 10:35 am (-1.6 ft)
Next high tide : in 1h 03m at 3:01 am (8.3 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Jun 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:226.86:326.011:39-0.65:478:27Waxing Crescent1Wed
2Thu5:116.27:216.012:092.412:26-0.25:468:27Waxing Crescent2Thu
3Fri6:065.68:096.01:182.31:150.25:468:28First Quarter3Fri
4Sat7:095.08:546.12:292.12:060.65:468:29First Quarter4Sat
5Sun8:234.69:366.33:351.82:591.05:458:29First Quarter5Sun
6Mon9:434.410:146.54:341.43:511.35:458:30First Quarter6Mon
7Tue10:584.510:496.75:241.04:401.65:458:30Waxing Gibbous7Tue
8Wed12:024.76:070.65:251.85:458:31Waxing Gibbous8Wed
9Thu12:564.96:460.26:082.15:458:31Waxing Gibbous9Thu
10Fri1:445.17:21-0.16:482.25:458:32Waxing Gibbous10Fri
11Sat12:347.32:285.37:56-0.47:282.35:458:32Full Moon11Sat
12Sun1:107.53:095.58:31-0.68:082.45:458:33Full Moon12Sun
13Mon1:487.53:505.79:07-0.88:512.55:458:33Full Moon13Mon
14Tue2:287.54:315.89:45-0.99:362.45:458:34Waning Gibbous14Tue
15Wed3:117.45:136.010:25-0.910:272.45:458:34Waning Gibbous15Wed
16Thu3:577.15:576.111:08-0.811:242.35:458:34Waning Gibbous16Thu
17Fri4:486.76:426.311:54-0.55:458:35Waning Gibbous17Fri
18Sat5:486.17:286.612:302.112:43-0.25:458:35Third Quarter18Sat
19Sun6:585.58:176.91:451.91:370.35:458:35Third Quarter19Sun
20Mon8:215.19:067.33:011.42:340.85:458:35Third Quarter20Mon
21Tue9:494.99:557.64:100.93:341.25:468:36Waning Crescent21Tue
22Wed11:115.010:447.95:110.34:341.65:468:36Waning Crescent22Wed
23Thu12:215.36:06-0.25:311.85:468:36Waning Crescent23Thu
24Fri1:215.66:56-0.66:272.05:468:36Waning Crescent24Fri
25Sat12:188.22:155.97:42-0.97:202.25:478:36New Moon25Sat
26Sun1:048.23:036.18:26-1.08:112.35:478:36New Moon26Sun
27Mon1:488.03:486.29:08-1.09:012.35:478:36New Moon27Mon
28Tue2:327.74:316.29:49-0.89:522.35:488:36Waxing Crescent28Tue
29Wed3:157.35:126.310:29-0.610:432.35:488:36Waxing Crescent29Wed
30Thu3:586.85:516.211:08-0.311:362.35:498:36Waxing Crescent30Thu
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 6:48 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 spring phase. Tonight's moon is 10% 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 Crescent (10% 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