Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 3h 35m at 12:13 pm (-0.7 ft)
Next high tide : 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 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:148.13:456.79:16-0.89:211.76:118:19Full Moon1Sat
2Sun3:047.94:247.09:59-0.610:141.56:128:18Waning Gibbous2Sun
3Mon3:577.55:067.210:42-0.311:121.36:138:17Waning Gibbous3Mon
4Tue4:556.85:507.411:280.26:148:16Waning Gibbous4Tue
5Wed5:596.26:387.512:161.212:170.86:148:15Third Quarter5Wed
6Thu7:145.67:307.61:271.01:121.36:158:14Third Quarter6Thu
7Fri8:415.28:277.62:430.82:161.86:168:13Third Quarter7Fri
8Sat10:095.29:267.73:560.53:272.26:178:11Third Quarter8Sat
9Sun11:245.510:247.75:010.34:362.36:188:10Waning Crescent9Sun
10Mon12:235.85:570.05:372.36:198:09Waning Crescent10Mon
11Tue1:126.16:45-0.16:312.36:208:08Waning Crescent11Tue
12Wed12:077.71:546.27:27-0.27:182.26:218:07New Moon12Wed
13Thu12:527.62:316.38:05-0.18:012.16:228:05New Moon13Thu
14Fri1:337.53:046.48:39-0.18:412.06:228:04New Moon14Fri
15Sat2:137.23:346.49:110.19:201.96:238:03New Moon15Sat
16Sun2:516.94:036.49:420.39:581.86:248:02Waxing Crescent16Sun
17Mon3:296.64:316.410:130.610:371.76:258:00Waxing Crescent17Mon
18Tue4:096.25:006.510:440.911:191.76:267:59Waxing Crescent18Tue
19Wed4:525.85:326.511:171.36:277:58Waxing Crescent19Wed
20Thu5:435.36:096.612:061.611:54 AM1.76:287:56First Quarter20Thu
21Fri6:464.96:536.61:011.512:372.06:297:55First Quarter21Fri
22Sat8:074.77:436.72:041.41:322.46:297:54First Quarter22Sat
23Sun9:364.78:406.83:121.12:422.66:307:52First Quarter23Sun
24Mon10:515.09:387.14:140.83:532.76:317:51Waxing Gibbous24Mon
25Tue11:465.410:357.45:090.44:552.66:327:49Waxing Gibbous25Tue
26Wed12:305.85:570.15:492.36:337:48Waxing Gibbous26Wed
27Thu1:106.16:42-0.26:382.06:347:46Waxing Gibbous27Thu
28Fri12:227.91:486.57:25-0.47:271.66:357:45Full Moon28Fri
29Sat1:148.02:256.98:07-0.48:161.36:367:43Full Moon29Sat
30Sun2:068.03:047.28:49-0.39:060.96:367:42Full Moon30Sun
31Mon2:597.73:437.59:320.09:580.76:377:41Waning Gibbous31Mon
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 3:36 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