Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 5h 33m at 1:28 pm (1.2 ft)
Next high tide : 8:01 pm (7.0 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:52 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Sep 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:574.87:146.41:451.41:242.56:397:37Third Quarter1Fri
2Sat9:334.88:096.42:531.22:352.86:407:36Third Quarter2Sat
3Sun10:545.09:086.63:581.03:502.96:417:34Third Quarter3Sun
4Mon11:485.310:066.84:550.74:512.96:427:33Waning Crescent4Mon
5Tue12:285.65:440.45:412.76:437:31Waning Crescent5Tue
6Wed1:025.96:260.16:242.46:447:30Waning Crescent6Wed
7Thu1:346.17:04-0.17:042.16:447:28Waning Crescent7Thu
8Fri12:367.52:066.47:42-0.27:441.86:457:27New Moon8Fri
9Sat1:247.62:386.68:19-0.28:271.46:467:25New Moon9Sat
10Sun2:127.63:116.98:56-0.19:121.06:477:24New Moon10Sun
11Mon3:027.43:467.29:350.210:000.76:487:22Waxing Crescent11Mon
12Tue3:567.04:237.410:150.710:520.56:497:20Waxing Crescent12Tue
13Wed4:556.55:047.510:581.211:500.46:507:19Waxing Crescent13Wed
14Thu6:025.95:507.511:471.86:507:17First Quarter14Thu
15Fri7:215.66:457.412:560.312:462.36:517:16First Quarter15Fri
16Sat8:505.57:487.32:090.32:022.66:527:14First Quarter16Sat
17Sun10:135.78:587.23:240.23:272.76:537:13First Quarter17Sun
18Mon11:186.010:067.24:330.04:422.66:547:11Waxing Gibbous18Mon
19Tue12:086.35:32-0.15:432.36:557:09Waxing Gibbous19Tue
20Wed12:506.56:22-0.16:351.96:567:08Waxing Gibbous20Wed
21Thu12:047.31:276.67:050.07:201.66:567:06Waxing Gibbous21Thu
22Fri12:547.22:006.77:430.18:011.46:577:05Full Moon22Fri
23Sat1:407.02:306.78:180.38:401.26:587:03Full Moon23Sat
24Sun2:246.82:576.78:520.69:161.06:597:01Full Moon24Sun
25Mon3:076.43:236.79:241.09:530.97:007:00Full Moon25Mon
26Tue3:506.13:496.79:561.410:300.87:016:58Waning Gibbous26Tue
27Wed4:365.84:166.610:291.811:090.87:026:57Waning Gibbous27Wed
28Thu5:265.44:486.511:052.211:540.87:036:55Waning Gibbous28Thu
29Fri6:265.25:256.411:472.67:046:54Waning Gibbous29Fri
30Sat7:405.06:136.212:460.912:442.97:046:52Third Quarter30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415623)

Common Questions About Napa, CA Tides

Show All
What time does the tide turn (slack tide) in Napa, CA today?

Slack tide in Napa, CA is approximately 4:44 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 neap phase. Tonight's moon is 50% 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 near their weekly minimum.

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 (50% illuminated). This places Napa, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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