Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 8:10 am (-0.5 ft)
Next high tide (tomorrow) : in 3h 31m at 12:23 am (7.4 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Apr 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:206.510:215.212:462.83:04-0.16:537:32First Quarter1Sun
2Mon8:366.511:165.63:172.84:15-0.36:517:33First Quarter2Mon
3Tue9:526.64:352.45:16-0.56:507:34Waxing Gibbous3Tue
4Wed12:006.011:02 AM6.85:371.96:08-0.56:487:35Waxing Gibbous4Wed
5Thu12:396.312:046.96:311.46:55-0.46:477:36Waxing Gibbous5Thu
6Fri1:156.71:026.97:210.87:38-0.26:457:37Full Moon6Fri
7Sat1:507.01:586.88:080.38:190.16:447:38Full Moon7Sat
8Sun2:257.22:526.58:54-0.18:590.66:427:39Full Moon8Sun
9Mon2:597.33:466.29:40-0.39:401.16:417:39Full Moon9Mon
10Tue3:337.34:425.810:26-0.410:221.66:397:40Waning Gibbous10Tue
11Wed4:097.15:425.511:13-0.411:072.16:387:41Waning Gibbous11Wed
12Thu4:466.86:495.212:03-0.26:367:42Waning Gibbous12Thu
13Fri5:276.48:065.112:012.512:590.06:357:43Third Quarter13Fri
14Sat6:176.09:255.11:122.82:020.26:337:44Third Quarter14Sat
15Sun7:195.710:285.32:392.83:080.36:327:45Third Quarter15Sun
16Mon8:315.411:145.53:572.74:100.36:317:46Third Quarter16Mon
17Tue9:425.411:485.74:572.45:030.36:297:47Waning Crescent17Tue
18Wed10:455.55:452.05:470.36:287:48Waning Crescent18Wed
19Thu12:165.811:39 AM5.66:261.66:240.46:267:49Waning Crescent19Thu
20Fri12:426.012:285.77:021.26:580.56:257:50Waning Crescent20Fri
21Sat1:066.31:155.77:350.87:300.76:247:51New Moon21Sat
22Sun1:316.52:015.78:080.48:011.06:227:52New Moon22Sun
23Mon1:576.72:475.78:410.18:341.36:217:53New Moon23Mon
24Tue2:256.93:365.69:17-0.29:081.66:207:54New Moon24Tue
25Wed2:557.14:275.59:56-0.59:462.06:197:54Waxing Crescent25Wed
26Thu3:297.15:245.410:40-0.710:282.36:177:55Waxing Crescent26Thu
27Fri4:087.16:285.311:29-0.711:192.66:167:56Waxing Crescent27Fri
28Sat4:546.97:385.312:25-0.66:157:57Waxing Crescent28Sat
29Sun5:516.68:485.412:262.81:29-0.56:147:58First Quarter29Sun
30Mon7:026.39:495.71:532.82:38-0.46:127:59First Quarter30Mon
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 4:16 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 spring phase. Tonight's moon is 96% 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 maximum.

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 Waxing Gibbous (96% illuminated). This places Napa, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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