Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Napa, CA.
Next low tide (tomorrow) : in 4h 22m at 12:52 am (2.2 ft)
Next high tide (tomorrow) : 5:55 am (6.2 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Sep 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:185.06:516.91:021.012:412.36:387:39First Quarter1Mon
2Tue8:444.97:517.02:100.91:492.66:397:37First Quarter2Tue
3Wed10:065.18:577.23:210.63:082.76:407:36First Quarter3Wed
4Thu11:085.510:037.44:260.34:212.56:417:34Waxing Gibbous4Thu
5Fri11:575.911:057.75:230.05:232.26:427:33Waxing Gibbous5Fri
6Sat12:406.36:13-0.36:191.76:437:31Waxing Gibbous6Sat
7Sun12:037.91:206.87:00-0.37:111.36:447:29Full Moon7Sun
8Mon12:597.91:597.17:45-0.38:020.96:447:28Full Moon8Mon
9Tue1:547.82:387.48:28-0.18:520.66:457:26Full Moon9Tue
10Wed2:487.53:177.69:110.39:430.36:467:25Waning Gibbous10Wed
11Thu3:437.13:577.79:550.710:350.36:477:23Waning Gibbous11Thu
12Fri4:416.64:407.610:411.211:300.36:487:22Waning Gibbous12Fri
13Sat5:426.15:257.411:301.76:497:20Waning Gibbous13Sat
14Sun6:515.76:157.112:300.412:282.26:507:19Third Quarter14Sun
15Mon8:105.57:126.81:360.61:382.56:507:17Third Quarter15Mon
16Tue9:305.58:166.62:470.72:562.66:517:15Third Quarter16Tue
17Wed10:375.79:226.53:550.74:072.56:527:14Third Quarter17Wed
18Thu11:285.910:236.54:530.65:062.36:537:12Waning Crescent18Thu
19Fri12:086.05:410.65:552.16:547:11Waning Crescent19Fri
20Sat12:416.26:220.66:371.86:557:09Waning Crescent20Sat
21Sun12:046.61:106.36:570.67:141.56:567:07Waning Crescent21Sun
22Mon12:476.61:366.57:290.77:491.36:577:06New Moon22Mon
23Tue1:286.62:026.67:590.88:221.16:577:04New Moon23Tue
24Wed2:086.52:286.88:281.08:540.96:587:03New Moon24Wed
25Thu2:496.32:556.98:571.39:280.76:597:01New Moon25Thu
26Fri3:316.13:257.09:281.510:050.57:007:00Waxing Crescent26Fri
27Sat4:175.93:587.010:021.810:470.47:016:58Waxing Crescent27Sat
28Sun5:085.74:357.010:402.111:350.47:026:56Waxing Crescent28Sun
29Mon6:075.45:206.911:262.47:036:55Waxing Crescent29Mon
30Tue7:175.36:156.812:310.412:252.67:046:53First Quarter30Tue
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 3:23 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 28% 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 Waxing Crescent (28% 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