Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 6h 52m at 1:01 pm (-0.2 ft)
Next high tide : 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 - Jan 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:486.312:408.66:572.27:56-1.47:254:59New Moon1Wed
2Thu2:336.51:318.57:502.18:42-1.37:265:00New Moon2Thu
3Fri3:176.72:238.18:462.09:28-1.17:265:01Waxing Crescent3Fri
4Sat4:026.93:187.59:451.810:14-0.77:265:02Waxing Crescent4Sat
5Sun4:487.04:166.710:491.711:02-0.17:265:03Waxing Crescent5Sun
6Mon5:367.15:235.912:001.67:265:03First Quarter6Mon
7Tue6:257.26:405.21:171.37:265:04First Quarter7Tue
8Wed7:177.38:104.912:491.12:321.07:265:05First Quarter8Wed
9Thu8:097.39:394.91:511.63:390.77:255:06First Quarter9Thu
10Fri9:017.410:525.22:562.04:370.37:255:07Waxing Gibbous10Fri
11Sat9:497.511:505.53:582.35:260.17:255:08Waxing Gibbous11Sat
12Sun10:337.54:532.46:08-0.17:255:09Waxing Gibbous12Sun
13Mon12:375.711:14 AM7.55:422.56:44-0.37:255:10Waxing Gibbous13Mon
14Tue1:175.811:53 AM7.46:252.57:18-0.37:245:11Full Moon14Tue
15Wed1:535.912:297.47:052.47:49-0.37:245:12Full Moon15Wed
16Thu2:246.01:057.27:422.48:19-0.37:245:13Full Moon16Thu
17Fri2:536.01:417.08:192.38:48-0.27:235:14Full Moon17Fri
18Sat3:226.12:176.78:552.29:170.07:235:16Waning Gibbous18Sat
19Sun3:516.22:556.49:352.19:480.27:225:17Waning Gibbous19Sun
20Mon4:216.33:375.910:182.010:210.57:225:18Waning Gibbous20Mon
21Tue4:556.44:265.411:081.910:580.97:215:19Waning Gibbous21Tue
22Wed5:326.55:284.912:071.77:215:20Third Quarter22Wed
23Thu6:146.76:514.51:141.47:205:21Third Quarter23Thu
24Fri7:036.98:304.512:331.82:241.07:195:22Third Quarter24Fri
25Sat7:577.29:574.81:382.23:290.57:195:23Third Quarter25Sat
26Sun8:537.511:035.22:492.44:260.07:185:24Waning Crescent26Sun
27Mon9:507.911:555.73:572.45:18-0.57:175:26Waning Crescent27Mon
28Tue10:458.24:582.36:07-0.97:175:27Waning Crescent28Tue
29Wed12:416.111:39 AM8.45:542.16:53-1.17:165:28New Moon29Wed
30Thu1:236.412:318.46:481.87:37-1.27:155:29New Moon30Thu
31Fri2:046.71:248.27:411.68:21-1.07:145:30New Moon31Fri
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 4:23 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