Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 6, 2026
The tide is currently rising in Napa, CA.
Next low tide : 12:48 pm (-0.1 ft)
Next high tide : in 0m at 5:19 am (5.8 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:45 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Sep 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:335.08:526.63:590.83:413.36:397:38First Quarter1Mon
2Tue12:145.34:590.64:493.26:407:37Waxing Gibbous2Tue
3Wed12:445.55:480.35:393.06:407:35Waxing Gibbous3Wed
4Thu1:115.76:300.06:212.76:417:34Waxing Gibbous4Thu
5Fri1:376.07:07-0.27:012.36:427:32Waxing Gibbous5Fri
6Sat12:317.52:036.37:41-0.37:411.86:437:31Full Moon6Sat
7Sun1:197.52:316.68:15-0.28:241.46:447:29Full Moon7Sun
8Mon2:087.42:597.08:490.19:080.96:457:27Full Moon8Mon
9Tue3:007.13:307.39:240.59:560.56:467:26Waning Gibbous9Tue
10Wed3:556.64:037.610:011.010:480.26:467:24Waning Gibbous10Wed
11Thu4:576.14:407.810:401.611:450.16:477:23Waning Gibbous11Thu
12Fri6:095.65:247.811:252.26:487:21Third Quarter12Fri
13Sat7:355.26:187.612:500.112:212.86:497:20Third Quarter13Sat
14Sun9:125.27:247.42:050.11:403.16:507:18Third Quarter14Sun
15Mon10:335.58:397.33:250.03:153.16:517:16Third Quarter15Mon
16Tue11:315.99:537.24:37-0.14:362.96:527:15Waning Crescent16Tue
17Wed12:156.25:36-0.15:392.56:537:13Waning Crescent17Wed
18Thu12:536.46:24-0.26:302.16:537:12Waning Crescent18Thu
19Fri1:266.67:05-0.17:161.76:547:10Waning Crescent19Fri
20Sat12:477.11:556.77:400.27:581.36:557:09New Moon20Sat
21Sun1:356.82:226.88:120.58:361.06:567:07New Moon21Sun
22Mon2:206.52:466.88:420.99:130.86:577:05New Moon22Mon
23Tue3:046.23:096.99:121.39:490.76:587:04New Moon23Tue
24Wed3:505.93:316.99:411.810:260.66:597:02Waxing Crescent24Wed
25Thu4:385.53:566.810:102.211:050.67:007:01Waxing Crescent25Thu
26Fri5:335.24:266.710:422.611:500.67:006:59Waxing Crescent26Fri
27Sat6:405.05:036.611:183.07:016:57Waxing Crescent27Sat
28Sun8:084.95:526.412:440.712:103.37:026:56First Quarter28Sun
29Mon9:455.06:566.21:500.71:453.47:036:54First Quarter29Mon
30Tue10:455.28:096.23:020.73:253.37:046:53First Quarter30Tue
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 9:03 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 66% 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 Third Quarter (66% 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