Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 3h 40m at 3:10 pm (1.0 ft)
Next high tide : 9:39 pm (6.8 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:45 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Sep 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:147.84:117.39:56-0.210:210.96:387:39Waxing Crescent1Sun
2Mon4:117.24:527.410:400.311:180.76:397:37Waxing Crescent2Mon
3Tue5:126.65:357.511:261.06:407:36Waxing Crescent3Tue
4Wed6:215.96:227.412:210.612:171.66:417:34First Quarter4Wed
5Thu7:425.57:157.31:290.61:182.26:427:33First Quarter5Thu
6Fri9:145.48:157.12:430.52:332.66:437:31First Quarter6Fri
7Sat10:375.59:187.03:540.43:512.76:437:30First Quarter7Sat
8Sun11:415.810:197.04:580.34:592.76:447:28Waxing Gibbous8Sun
9Mon12:296.15:510.25:542.56:457:27Waxing Gibbous9Mon
10Tue1:086.26:360.16:402.36:467:25Waxing Gibbous10Tue
11Wed12:027.11:416.27:150.17:202.16:477:24Waxing Gibbous11Wed
12Thu12:457.12:106.37:490.27:561.96:487:22Full Moon12Thu
13Fri1:257.02:356.38:200.38:301.76:497:20Full Moon13Fri
14Sat2:046.82:596.38:490.59:021.56:497:19Full Moon14Sat
15Sun2:426.63:236.49:170.79:351.46:507:17Full Moon15Sun
16Mon3:216.33:486.59:451.010:101.26:517:16Waning Gibbous16Mon
17Tue4:026.04:156.610:151.310:481.16:527:14Waning Gibbous17Tue
18Wed4:495.74:466.710:471.711:321.06:537:13Waning Gibbous18Wed
19Thu5:445.35:226.711:242.16:547:11Waning Gibbous19Thu
20Fri6:545.16:066.712:240.912:102.56:557:09Third Quarter20Fri
21Sat8:205.07:016.71:260.81:142.86:567:08Third Quarter21Sat
22Sun9:475.18:086.72:370.62:363.06:567:06Third Quarter22Sun
23Mon10:525.59:186.93:470.33:562.96:577:05Third Quarter23Mon
24Tue11:405.910:257.24:490.05:002.56:587:03Waning Crescent24Tue
25Wed12:216.25:43-0.25:542.16:597:01Waning Crescent25Wed
26Thu12:596.66:32-0.46:451.57:007:00Waning Crescent26Thu
27Fri12:257.71:356.97:17-0.37:341.07:016:58New Moon27Fri
28Sat1:217.72:127.38:00-0.28:230.57:026:57New Moon28Sat
29Sun2:177.52:497.58:430.29:130.27:036:55New Moon29Sun
30Mon3:137.23:267.79:250.710:030.07:046:54Waxing Crescent30Mon
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 6:24 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 transitional phase. Tonight's moon is 35% 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 (35% 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