Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Napa, CA.
Next low tide : 1:01 pm (-0.2 ft)
Next high tide : in 4h 29m at 5:55 am (6.2 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 - May 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:047.24:515.710:14-0.710:112.16:118:00Waxing Crescent1Thu
2Fri3:416.95:425.510:56-0.511:002.36:108:01Waxing Crescent2Fri
3Sat4:206.56:355.411:40-0.311:562.56:098:02Waxing Crescent3Sat
4Sun5:036.17:305.312:270.06:088:03Waxing Crescent4Sun
5Mon5:535.78:265.31:022.61:190.26:078:04First Quarter5Mon
6Tue6:525.39:165.42:172.52:150.56:068:05First Quarter6Tue
7Wed8:024.99:595.73:272.23:120.76:058:06First Quarter7Wed
8Thu9:164.810:365.94:271.94:040.86:048:07First Quarter8Thu
9Fri10:264.811:106.25:161.44:511.06:038:07Waxing Gibbous9Fri
10Sat11:294.911:416.55:591.05:331.16:028:08Waxing Gibbous10Sat
11Sun12:255.16:370.56:131.36:018:09Waxing Gibbous11Sun
12Mon12:136.91:175.37:130.16:511.56:008:10Waxing Gibbous12Mon
13Tue12:477.22:065.57:49-0.37:311.75:598:11Full Moon13Tue
14Wed1:227.42:555.68:28-0.78:121.95:588:12Full Moon14Wed
15Thu1:597.63:445.79:08-1.08:562.05:578:13Full Moon15Thu
16Fri2:407.64:345.89:52-1.19:432.25:568:14Waning Gibbous16Fri
17Sat3:247.55:265.810:38-1.210:372.35:558:15Waning Gibbous17Sat
18Sun4:137.36:205.911:28-1.011:392.35:558:15Waning Gibbous18Sun
19Mon5:086.87:166.012:22-0.85:548:16Waning Gibbous19Mon
20Tue6:126.38:116.212:542.21:20-0.45:538:17Third Quarter20Tue
21Wed7:255.89:056.52:162.02:20-0.15:528:18Third Quarter21Wed
22Thu8:475.49:556.83:341.53:200.35:528:19Third Quarter22Thu
23Fri10:085.210:417.24:421.04:180.75:518:20Waning Crescent23Fri
24Sat11:235.211:247.55:390.45:121.05:518:20Waning Crescent24Sat
25Sun12:305.46:30-0.16:021.35:508:21Waning Crescent25Sun
26Mon12:057.61:285.57:16-0.46:501.65:498:22Waning Crescent26Mon
27Tue12:437.72:215.77:58-0.77:351.95:498:23New Moon27Tue
28Wed1:217.63:105.78:38-0.88:202.15:488:24New Moon28Wed
29Thu1:577.53:575.89:16-0.89:052.35:488:24New Moon29Thu
30Fri2:337.24:405.79:53-0.79:492.45:478:25Waxing Crescent30Fri
31Sat3:106.95:235.710:31-0.610:362.55:478:26Waxing Crescent31Sat
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 9:28 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 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