Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 2:05 am (1.8 ft)
Next high tide : in 56m at 7:24 pm (6.6 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:52 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Sep 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:136.05:390.15:362.46:397:39Waxing Gibbous1Wed
2Thu12:596.26:290.06:282.36:397:37Waxing Gibbous2Thu
3Fri1:386.37:110.07:132.16:407:36Waxing Gibbous3Fri
4Sat12:437.42:126.47:480.07:541.96:417:34Full Moon4Sat
5Sun1:257.22:426.48:220.18:311.86:427:32Full Moon5Sun
6Mon2:057.03:096.48:540.39:061.66:437:31Full Moon6Mon
7Tue2:446.83:346.49:240.59:411.56:447:29Full Moon7Tue
8Wed3:226.54:006.59:540.810:161.46:457:28Waning Gibbous8Wed
9Thu4:026.14:276.510:251.210:551.36:457:26Waning Gibbous9Thu
10Fri4:465.84:576.510:571.511:371.36:467:25Waning Gibbous10Fri
11Sat5:375.45:326.511:331.96:477:23Waning Gibbous11Sat
12Sun6:415.06:146.512:281.212:172.36:487:22Third Quarter12Sun
13Mon8:024.97:066.51:271.11:152.76:497:20Third Quarter13Mon
14Tue9:305.08:076.52:351.02:312.86:507:18Third Quarter14Tue
15Wed10:415.29:116.73:430.73:472.86:517:17Third Quarter15Wed
16Thu11:335.610:147.04:430.44:492.66:517:15Waning Crescent16Thu
17Fri12:146.05:350.15:422.36:527:14Waning Crescent17Fri
18Sat12:526.36:22-0.26:301.86:537:12Waning Crescent18Sat
19Sun12:087.61:286.77:06-0.37:181.46:547:11New Moon19Sun
20Mon1:027.82:057.07:49-0.38:050.96:557:09New Moon20Mon
21Tue1:567.72:427.38:32-0.18:540.56:567:07New Moon21Tue
22Wed2:517.53:207.69:140.39:450.26:577:06Waxing Crescent22Wed
23Thu3:477.14:007.79:580.810:380.06:587:04Waxing Crescent23Thu
24Fri4:476.64:447.710:451.311:360.06:587:03Waxing Crescent24Fri
25Sat5:536.25:327.511:371.86:597:01Waxing Crescent25Sat
26Sun7:085.86:267.212:390.112:402.37:006:59First Quarter26Sun
27Mon8:315.77:296.91:480.21:582.67:016:58First Quarter27Mon
28Tue9:505.88:386.73:010.33:222.67:026:56First Quarter28Tue
29Wed10:546.09:476.64:090.34:342.57:036:55Waxing Gibbous29Wed
30Thu11:446.310:496.65:080.35:322.27:046:53Waxing Gibbous30Thu
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 10:44 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 61% 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 (61% 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