Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Napa, CA.
Next low tide : 12:05 pm (0.1 ft)
Next high tide : in 4h 29m at 5:00 am (5.9 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Nov 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:295.75:485.812:190.21:082.86:355:09First Quarter1Sun
2Mon8:215.87:005.41:180.52:222.56:375:08First Quarter2Mon
3Tue9:046.08:155.22:150.83:242.16:385:07First Quarter3Tue
4Wed9:386.29:255.13:061.04:141.76:395:06Waxing Gibbous4Wed
5Thu10:076.410:275.23:511.24:571.26:405:05Waxing Gibbous5Thu
6Fri10:346.711:235.44:311.45:340.86:415:04Waxing Gibbous6Fri
7Sat11:017.05:081.76:090.46:425:03Waxing Gibbous7Sat
8Sun12:135.511:30 AM7.35:431.96:420.06:435:02Full Moon8Sun
9Mon1:015.612:007.56:182.27:15-0.36:445:01Full Moon9Mon
10Tue1:475.712:337.66:542.47:51-0.56:455:00Full Moon10Tue
11Wed2:345.71:097.77:322.68:30-0.76:464:59Full Moon11Wed
12Thu3:215.81:487.78:132.79:12-0.86:474:58Waning Gibbous12Thu
13Fri4:115.72:327.58:592.89:59-0.76:484:58Waning Gibbous13Fri
14Sat5:025.73:227.29:542.910:49-0.66:504:57Waning Gibbous14Sat
15Sun5:565.84:206.811:012.811:44-0.36:514:56Third Quarter15Sun
16Mon6:496.05:306.212:222.66:524:55Third Quarter16Mon
17Tue7:396.36:505.712:420.01:462.26:534:55Third Quarter17Tue
18Wed8:266.78:165.41:420.43:001.56:544:54Third Quarter18Wed
19Thu9:107.29:395.42:400.84:010.86:554:53Waning Crescent19Thu
20Fri9:517.610:535.53:351.24:550.26:564:53Waning Crescent20Fri
21Sat10:328.011:585.84:271.65:44-0.46:574:52Waning Crescent21Sat
22Sun11:118.25:161.96:29-0.86:584:52New Moon22Sun
23Mon12:565.911:51 AM8.36:042.27:13-1.06:594:51New Moon23Mon
24Tue1:506.112:328.26:522.47:56-1.07:004:51New Moon24Tue
25Wed2:406.11:128.07:392.68:37-1.07:014:50New Moon25Wed
26Thu3:286.11:537.68:282.79:19-0.87:024:50Waxing Crescent26Thu
27Fri4:146.02:357.29:182.810:01-0.57:034:50Waxing Crescent27Fri
28Sat5:005.93:186.710:122.810:44-0.27:044:49Waxing Crescent28Sat
29Sun5:455.84:066.111:142.811:280.17:054:49Waxing Crescent29Sun
30Mon6:295.85:005.512:242.77:064:49First Quarter30Mon
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 8:32 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 71% 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 Waning Gibbous (71% 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