Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 13, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 14m at 6:40 pm (2.6 ft)
Next high tide (tomorrow) : 12:25 am (8.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - May 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:457.14:105.69:45-0.59:371.96:118:00Full Moon1Tue
2Wed3:156.95:005.510:24-0.410:182.26:108:01Waning Gibbous2Wed
3Thu3:476.75:525.311:04-0.411:032.56:098:02Waning Gibbous3Thu
4Fri4:236.46:485.211:47-0.211:562.76:088:03Waning Gibbous4Fri
5Sat5:036.07:485.112:350.06:078:04Waning Gibbous5Sat
6Sun5:535.78:485.21:052.81:290.26:068:05Third Quarter6Sun
7Mon6:535.39:395.32:262.82:270.36:058:06Third Quarter7Mon
8Tue8:045.110:215.63:392.53:250.46:048:07Third Quarter8Tue
9Wed9:185.010:565.94:372.24:170.56:038:07Third Quarter9Wed
10Thu10:265.111:286.25:241.75:030.66:028:08Waning Crescent10Thu
11Fri11:285.211:586.56:041.25:450.76:018:09Waning Crescent11Fri
12Sat12:255.46:420.76:250.96:008:10Waning Crescent12Sat
13Sun12:296.91:195.67:190.17:051.15:598:11Waning Crescent13Sun
14Mon1:027.22:125.77:58-0.47:451.45:588:12New Moon14Mon
15Tue1:377.53:065.88:39-0.88:281.75:578:13New Moon15Tue
16Wed2:147.74:005.99:23-1.19:132.05:568:14New Moon16Wed
17Thu2:557.84:565.910:10-1.210:032.25:558:15Waxing Crescent17Thu
18Fri3:417.75:545.911:00-1.211:002.45:558:15Waxing Crescent18Fri
19Sat4:317.46:545.911:55-1.15:548:16Waxing Crescent19Sat
20Sun5:296.97:566.012:082.512:54-0.85:538:17First Quarter20Sun
21Mon6:366.38:556.21:292.51:56-0.55:528:18First Quarter21Mon
22Tue7:535.89:486.52:542.23:00-0.25:528:19First Quarter22Tue
23Wed9:145.510:356.84:081.73:590.25:518:20First Quarter23Wed
24Thu10:325.311:187.15:111.14:530.55:518:20Waxing Gibbous24Thu
25Fri11:435.311:567.36:050.65:420.95:508:21Waxing Gibbous25Fri
26Sat12:465.46:520.16:271.25:498:22Waxing Gibbous26Sat
27Sun12:317.41:425.57:35-0.27:101.65:498:23Full Moon27Sun
28Mon1:057.42:345.58:14-0.57:511.95:488:24Full Moon28Mon
29Tue1:377.43:235.68:50-0.68:312.25:488:24Full Moon29Tue
30Wed2:087.24:085.69:26-0.69:122.55:478:25Full Moon30Wed
31Thu2:407.14:525.510:02-0.69:532.65:478:26Waning Gibbous31Thu
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 9:32 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 3% 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 New Moon (3% 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