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 4h 08m 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 - Jun 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:346.08:596.21:452.62:00-0.35:478:27Third Quarter1Tue
2Wed7:485.49:466.43:052.32:560.15:468:27Third Quarter2Wed
3Thu9:085.010:276.64:151.83:490.65:468:28Third Quarter3Thu
4Fri10:284.811:016.85:131.34:381.05:468:29Waning Crescent4Fri
5Sat11:394.811:326.96:020.85:221.45:458:29Waning Crescent5Sat
6Sun12:424.96:440.46:031.85:458:30Waning Crescent6Sun
7Mon12:007.11:375.07:220.06:422.15:458:30Waning Crescent7Mon
8Tue12:287.22:275.27:56-0.27:202.45:458:31New Moon8Tue
9Wed12:567.23:125.38:29-0.47:572.75:458:31New Moon9Wed
10Thu1:267.33:545.49:01-0.58:342.85:458:32New Moon10Thu
11Fri1:597.24:355.49:34-0.69:122.95:458:32New Moon11Fri
12Sat2:347.25:165.510:09-0.79:523.05:448:33Waxing Crescent12Sat
13Sun3:127.05:575.510:47-0.710:373.05:448:33Waxing Crescent13Sun
14Mon3:526.86:395.611:27-0.611:313.05:448:34Waxing Crescent14Mon
15Tue4:386.57:225.712:11-0.55:458:34Waxing Crescent15Tue
16Wed5:316.18:045.912:352.912:58-0.25:458:34First Quarter16Wed
17Thu6:355.68:446.31:492.61:480.15:458:35First Quarter17Thu
18Fri7:545.19:236.73:022.12:400.55:458:35First Quarter18Fri
19Sat9:224.910:027.24:071.43:330.95:458:35First Quarter19Sat
20Sun10:504.910:427.75:040.74:271.45:458:35Waxing Gibbous20Sun
21Mon12:095.15:57-0.15:201.85:458:36Waxing Gibbous21Mon
22Tue1:175.46:48-0.76:132.25:468:36Waxing Gibbous22Tue
23Wed12:088.52:185.77:37-1.27:072.45:468:36Full Moon23Wed
24Thu12:548.63:136.08:26-1.58:012.65:468:36Full Moon24Thu
25Fri1:428.64:056.19:15-1.68:562.75:478:36Full Moon25Fri
26Sat2:328.44:556.210:03-1.59:542.75:478:36Waning Gibbous26Sat
27Sun3:238.05:436.210:52-1.210:562.65:478:36Waning Gibbous27Sun
28Mon4:157.46:316.311:40-0.95:488:36Waning Gibbous28Mon
29Tue5:096.77:186.312:022.612:28-0.45:488:36Waning Gibbous29Tue
30Wed6:095.98:036.41:152.41:160.15:498:36Third Quarter30Wed
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