Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Napa, CA.
Next low tide : 11:01 pm (2.7 ft)
Next high tide : in 2h 11m at 5:46 pm (5.8 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - May 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:416.94:265.49:51-0.49:432.26:128:00Waxing Crescent1Mon
2Tue3:126.75:105.310:26-0.310:222.46:118:01Waxing Crescent2Tue
3Wed3:466.55:565.211:03-0.211:052.56:108:01Waxing Crescent3Wed
4Thu4:246.36:455.111:45-0.111:582.66:088:02Waxing Crescent4Thu
5Fri5:086.07:375.112:310.16:078:03Waxing Crescent5Fri
6Sat6:005.68:295.31:042.61:220.26:068:04First Quarter6Sat
7Sun7:025.39:175.52:202.52:180.46:058:05First Quarter7Sun
8Mon8:155.09:595.83:302.23:140.56:048:06First Quarter8Mon
9Tue9:315.010:386.24:281.74:070.76:038:07First Quarter9Tue
10Wed10:435.111:146.75:171.24:560.86:028:08Waxing Gibbous10Wed
11Thu11:495.311:517.16:020.55:431.06:018:09Waxing Gibbous11Thu
12Fri12:495.66:45-0.16:291.26:008:10Waxing Gibbous12Fri
13Sat12:297.51:475.87:30-0.77:151.55:598:11Full Moon13Sat
14Sun1:097.92:426.08:15-1.18:021.75:588:12Full Moon14Sun
15Mon1:528.13:366.09:02-1.48:521.95:578:12Full Moon15Mon
16Tue2:388.14:316.19:51-1.59:452.05:578:13Waning Gibbous16Tue
17Wed3:277.95:266.110:42-1.410:442.15:568:14Waning Gibbous17Wed
18Thu4:197.56:226.111:35-1.211:512.25:558:15Waning Gibbous18Thu
19Fri5:177.07:206.212:30-0.85:548:16Third Quarter19Fri
20Sat6:216.38:176.31:082.11:29-0.45:538:17Third Quarter20Sat
21Sun7:345.79:126.52:301.92:290.15:538:18Third Quarter21Sun
22Mon8:545.210:016.73:461.53:280.55:528:18Third Quarter22Mon
23Tue10:145.010:456.94:501.04:230.95:518:19Waning Crescent23Tue
24Wed11:265.011:257.15:450.65:141.25:518:20Waning Crescent24Wed
25Thu12:295.16:320.26:001.55:508:21Waning Crescent25Thu
26Fri12:007.21:245.37:14-0.16:431.85:508:22Waning Crescent26Fri
27Sat12:337.22:135.47:51-0.37:242.05:498:22New Moon27Sat
28Sun1:057.22:575.48:25-0.48:032.25:498:23New Moon28Sun
29Mon1:367.13:385.58:58-0.58:412.45:488:24New Moon29Mon
30Tue2:087.14:175.59:31-0.59:192.55:488:25New Moon30Tue
31Wed2:426.94:555.510:04-0.59:592.65:478:25Waxing Crescent31Wed
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 8:23 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 spring phase. Tonight's moon is 87% 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 maximum.

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 (87% illuminated). This places Napa, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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