Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Wednesday, June 10, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 5h 36m at 4:48 am (0.9 ft)
Next high tide : 10:29 am (4.6 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:45 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Mar 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:416.711:565.74:212.65:160.06:406:02Waning Crescent1Fri
2Sat10:326.85:152.45:58-0.16:396:03Waning Crescent2Sat
3Sun12:325.811:18 AM6.85:592.36:34-0.16:376:04Waning Crescent3Sun
4Mon1:035.911:59 AM6.86:372.17:07-0.16:366:05New Moon4Mon
5Tue1:306.012:376.87:121.97:360.06:356:06New Moon5Tue
6Wed1:556.01:156.77:441.78:050.16:336:07New Moon6Wed
7Thu2:196.11:526.58:161.58:320.36:326:08New Moon7Thu
8Fri2:436.22:316.28:501.39:010.56:306:09Waxing Crescent8Fri
9Sat3:096.33:125.89:261.19:310.96:296:10Waxing Crescent9Sat
10Sun4:376.44:595.411:060.911:041.37:277:11Waxing Crescent10Sun
11Mon5:086.55:575.011:530.811:421.87:267:12Waxing Crescent11Mon
12Tue5:456.57:134.712:480.77:247:13First Quarter12Tue
13Wed6:316.58:474.612:292.21:550.57:237:14First Quarter13Wed
14Thu7:286.610:174.91:352.63:080.37:217:15First Quarter14Thu
15Fri8:376.711:225.33:002.74:190.07:207:16First Quarter15Fri
16Sat9:486.94:202.65:20-0.47:187:16Waxing Gibbous16Sat
17Sun12:105.710:54 AM7.25:252.36:14-0.67:167:17Waxing Gibbous17Sun
18Mon12:516.111:55 AM7.56:211.97:02-0.87:157:18Waxing Gibbous18Mon
19Tue1:296.412:527.67:131.37:47-0.77:137:19Full Moon19Tue
20Wed2:066.71:477.58:020.98:29-0.57:127:20Full Moon20Wed
21Thu2:427.02:417.38:510.49:11-0.27:107:21Full Moon21Thu
22Fri3:197.23:366.89:410.19:520.37:097:22Waning Gibbous22Fri
23Sat3:567.34:326.310:310.010:350.97:077:23Waning Gibbous23Sat
24Sun4:347.35:335.811:23-0.111:211.57:067:24Waning Gibbous24Sun
25Mon5:147.06:425.312:190.07:047:25Waning Gibbous25Mon
26Tue5:596.78:045.112:132.01:210.27:037:26Third Quarter26Tue
27Wed6:516.49:325.11:202.52:290.37:017:27Third Quarter27Wed
28Thu7:536.110:455.32:442.73:390.36:597:28Third Quarter28Thu
29Fri9:035.911:375.54:052.64:420.36:587:29Third Quarter29Fri
30Sat10:095.95:092.45:340.26:567:30Waning Crescent30Sat
31Sun12:175.711:07 AM6.05:592.16:180.26:557:31Waning Crescent31Sun
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 7:38 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 35% 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 Third Quarter (35% 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