Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Monday, June 8, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 3:53 am (1.6 ft)
Next high tide : in 9m at 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 - Sep 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:127.52:446.48:19-0.28:222.06:397:38Full Moon1Tue
2Wed1:547.33:136.48:520.09:001.86:407:36Full Moon2Wed
3Thu2:347.03:406.49:240.39:371.76:417:35Full Moon3Thu
4Fri3:146.74:056.49:540.610:151.56:417:33Waning Gibbous4Fri
5Sat3:556.24:306.410:241.010:541.46:427:32Waning Gibbous5Sat
6Sun4:395.84:576.510:551.411:371.36:437:30Waning Gibbous6Sun
7Mon5:295.45:286.511:291.96:447:29Waning Gibbous7Mon
8Tue6:325.06:066.512:261.312:082.36:457:27Third Quarter8Tue
9Wed7:564.86:536.51:241.21:002.76:467:26Third Quarter9Wed
10Thu9:354.87:506.52:321.12:143.06:477:24Third Quarter10Thu
11Fri10:545.18:546.63:410.83:373.16:487:22Third Quarter11Fri
12Sat11:455.49:576.94:420.54:423.06:487:21Waning Crescent12Sat
13Sun12:235.75:340.25:342.76:497:19Waning Crescent13Sun
14Mon12:586.06:20-0.16:212.36:507:18Waning Crescent14Mon
15Tue1:316.37:02-0.37:051.96:517:16Waning Crescent15Tue
16Wed12:427.72:036.67:42-0.47:501.46:527:15New Moon16Wed
17Thu1:347.82:377.08:22-0.38:370.96:537:13New Moon17Thu
18Fri2:287.63:117.39:020.09:260.56:547:11New Moon18Fri
19Sat3:237.33:487.59:430.510:180.26:547:10Waxing Crescent19Sat
20Sun4:216.84:277.710:261.111:140.16:557:08Waxing Crescent20Sun
21Mon5:266.25:117.711:121.76:567:07Waxing Crescent21Mon
22Tue6:405.86:017.512:150.012:062.26:577:05First Quarter22Tue
23Wed8:065.57:007.31:240.11:172.76:587:03First Quarter23Wed
24Thu9:345.68:087.02:380.12:442.96:597:02First Quarter24Thu
25Fri10:465.99:206.93:510.14:072.87:007:00First Quarter25Fri
26Sat11:406.210:276.94:550.15:132.57:016:59Waxing Gibbous26Sat
27Sun12:236.45:490.16:072.27:016:57Waxing Gibbous27Sun
28Mon1:006.56:340.16:521.87:026:56Waxing Gibbous28Mon
29Tue12:176.81:316.67:120.27:311.67:036:54Waxing Gibbous29Tue
30Wed1:036.71:586.67:460.48:081.37:046:52Full Moon30Wed
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 12:28 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 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