Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Monday, June 8, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 2h 54m at 2:21 pm (0.6 ft)
Next high tide : 9:03 pm (6.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:45 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - May 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:507.47:295.612:24-1.06:118:00Waning Gibbous1Sat
2Sun5:486.98:405.612:292.81:29-0.76:108:01Third Quarter2Sun
3Mon6:586.39:445.81:592.82:37-0.46:098:02Third Quarter3Mon
4Tue8:155.810:366.13:272.53:42-0.26:088:03Third Quarter4Tue
5Wed9:345.511:186.34:382.04:390.16:078:04Waning Crescent5Wed
6Thu10:465.411:536.55:361.55:270.36:058:05Waning Crescent6Thu
7Fri11:495.36:241.16:080.66:048:06Waning Crescent7Fri
8Sat12:246.612:455.37:060.66:451.06:038:07Waning Crescent8Sat
9Sun12:506.71:365.37:430.37:201.36:028:08New Moon9Sun
10Mon1:146.82:245.38:160.07:521.76:018:09New Moon10Mon
11Tue1:386.93:105.38:48-0.28:252.06:008:10New Moon11Tue
12Wed2:026.93:565.39:20-0.48:582.46:008:10New Moon12Wed
13Thu2:296.94:415.29:52-0.49:322.65:598:11New Moon13Thu
14Fri2:596.85:295.210:27-0.510:092.85:588:12Waxing Crescent14Fri
15Sat3:326.76:205.111:06-0.410:523.05:578:13Waxing Crescent15Sat
16Sun4:116.57:155.111:50-0.411:473.15:568:14Waxing Crescent16Sun
17Mon4:576.28:105.212:40-0.35:558:15Waxing Crescent17Mon
18Tue5:525.99:015.41:013.11:35-0.25:548:16First Quarter18Tue
19Wed6:595.69:435.72:242.92:33-0.15:548:17First Quarter19Wed
20Thu8:175.310:206.03:362.43:290.15:538:17First Quarter20Thu
21Fri9:375.310:556.54:351.84:210.35:528:18Waxing Gibbous21Fri
22Sat10:545.311:287.05:271.15:090.65:528:19Waxing Gibbous22Sat
23Sun12:045.56:150.35:560.95:518:20Waxing Gibbous23Sun
24Mon12:037.51:105.67:02-0.46:421.45:508:21Waxing Gibbous24Mon
25Tue12:408.02:135.87:49-1.07:291.85:508:21Full Moon25Tue
26Wed1:208.33:135.98:37-1.48:172.15:498:22Full Moon26Wed
27Thu2:028.44:126.09:26-1.69:092.45:498:23Full Moon27Thu
28Fri2:488.35:106.010:17-1.610:052.65:488:24Waning Gibbous28Fri
29Sat3:377.96:096.011:10-1.411:082.85:488:24Waning Gibbous29Sat
30Sun4:317.47:076.012:05-1.15:478:25Waning Gibbous30Sun
31Mon5:296.78:056.012:222.81:01-0.75:478:26Third Quarter31Mon
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 5:42 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 neap phase. Tonight's moon is 46% 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 minimum.

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 (46% illuminated). This places Napa, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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