Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 2:08 am (1.9 ft)
Next high tide : in 2h 40m at 7:46 pm (6.6 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Mar 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:337.14:105.710:100.510:031.36:406:02Waning Gibbous1Fri
2Sat4:127.25:165.211:050.310:491.76:386:03Waning Gibbous2Sat
3Sun4:587.26:364.912:090.36:376:04Third Quarter3Sun
4Mon5:547.18:064.91:220.26:356:05Third Quarter4Mon
5Tue7:017.09:275.11:042.42:370.06:346:06Third Quarter5Tue
6Wed8:137.010:285.52:312.53:45-0.26:326:07Waning Crescent6Wed
7Thu9:237.111:166.03:482.24:43-0.36:316:08Waning Crescent7Thu
8Fri10:267.211:576.34:511.95:32-0.46:296:09Waning Crescent8Fri
9Sat11:247.35:461.56:17-0.36:286:10Waning Crescent9Sat
10Sun12:356.61:177.27:351.17:57-0.27:267:11New Moon10Sun
11Mon2:106.92:077.08:210.78:360.17:257:12New Moon11Mon
12Tue2:447.02:556.79:040.59:130.47:237:13New Moon12Tue
13Wed3:167.13:436.39:470.49:500.87:227:14Waxing Crescent13Wed
14Thu3:487.04:315.810:290.310:271.37:207:15Waxing Crescent14Thu
15Fri4:206.95:235.411:130.411:061.77:197:16Waxing Crescent15Fri
16Sat4:546.76:215.011:590.511:502.17:177:17Waxing Crescent16Sat
17Sun5:336.57:304.712:530.67:167:18First Quarter17Sun
18Mon6:186.28:534.612:442.41:550.77:147:19First Quarter18Mon
19Tue7:156.010:094.81:572.63:040.77:137:20First Quarter19Tue
20Wed8:215.811:035.03:192.74:080.67:117:21First Quarter20Wed
21Thu9:285.811:425.34:272.55:020.57:107:22Waxing Gibbous21Thu
22Fri10:306.05:212.25:460.47:087:23Waxing Gibbous22Fri
23Sat12:145.611:25 AM6.16:051.86:240.37:067:24Waxing Gibbous23Sat
24Sun12:425.912:146.36:451.46:590.37:057:25Waxing Gibbous24Sun
25Mon1:116.21:026.47:221.07:330.47:037:25Full Moon25Mon
26Tue1:406.51:496.47:590.68:070.57:027:26Full Moon26Tue
27Wed2:106.92:376.48:380.28:420.87:007:27Full Moon27Wed
28Thu2:427.13:276.29:19-0.19:201.16:597:28Full Moon28Thu
29Fri3:177.34:206.010:04-0.410:001.46:577:29Waning Gibbous29Fri
30Sat3:557.45:185.710:53-0.510:451.86:567:30Waning Gibbous30Sat
31Sun4:397.46:235.411:47-0.511:392.16:547:31Waning Gibbous31Sun
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 10:57 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 38% 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 First Quarter (38% 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