Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 12:52 am (2.2 ft)
Next high tide : in 2h 39m at 7:00 pm (6.4 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 - Aug 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:247.63:566.49:26-0.49:292.06:118:19Full Moon1Tue
2Wed3:077.44:316.610:03-0.310:151.86:128:18Waning Gibbous2Wed
3Thu3:547.05:086.810:410.011:071.76:138:16Waning Gibbous3Thu
4Fri4:466.55:477.011:220.36:148:15Waning Gibbous4Fri
5Sat5:466.06:317.212:051.512:070.86:158:14Third Quarter5Sat
6Sun6:585.47:217.41:121.212:591.36:168:13Third Quarter6Sun
7Mon8:245.18:167.62:251.02:001.86:178:12Third Quarter7Mon
8Tue9:555.19:157.83:390.63:092.16:188:11Third Quarter8Tue
9Wed11:135.410:147.94:460.24:202.36:188:10Waning Crescent9Wed
10Thu12:155.85:44-0.15:252.36:198:09Waning Crescent10Thu
11Fri1:066.16:36-0.46:232.26:208:07Waning Crescent11Fri
12Sat12:068.21:516.47:23-0.57:162.06:218:06New Moon12Sat
13Sun12:578.12:336.68:06-0.58:061.96:228:05New Moon13Sun
14Mon1:457.93:116.78:47-0.48:531.76:238:04New Moon14Mon
15Tue2:317.63:486.89:25-0.29:391.66:248:02New Moon15Tue
16Wed3:167.24:236.810:030.110:251.56:258:01Waxing Crescent16Wed
17Thu4:016.74:576.710:390.511:121.56:258:00Waxing Crescent17Thu
18Fri4:486.15:316.711:171.06:267:58Waxing Crescent18Fri
19Sat5:405.66:086.612:031.511:57 AM1.56:277:57Waxing Crescent19Sat
20Sun6:415.16:506.612:591.512:421.96:287:56First Quarter20Sun
21Mon7:584.87:376.52:021.41:372.36:297:54First Quarter21Mon
22Tue9:284.78:316.63:091.32:452.66:307:53First Quarter22Tue
23Wed10:474.99:276.74:121.13:552.76:317:52First Quarter23Wed
24Thu11:435.210:216.95:060.84:542.76:327:50Waxing Gibbous24Thu
25Fri12:255.55:520.55:432.56:327:49Waxing Gibbous25Fri
26Sat1:015.86:320.36:262.36:337:47Waxing Gibbous26Sat
27Sun1:336.07:090.17:062.16:347:46Waxing Gibbous27Sun
28Mon12:437.52:056.37:45-0.17:461.86:357:44Full Moon28Mon
29Tue1:287.52:386.68:20-0.18:271.56:367:43Full Moon29Tue
30Wed2:137.53:116.88:560.09:101.26:377:41Full Moon30Wed
31Thu3:017.33:467.19:340.29:571.06:387:40Waning Gibbous31Thu
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 9:56 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 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