Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 2h 29m at 12:05 pm (0.1 ft)
Next high tide : 6:49 pm (6.3 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Mar 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:245.711:18 AM6.75:572.16:290.06:406:02Waning Crescent1Sun
2Mon12:505.912:006.76:341.86:580.16:386:03New Moon2Mon
3Tue1:136.012:396.67:081.57:250.26:376:04New Moon3Tue
4Wed1:356.21:196.47:411.37:520.46:356:05New Moon4Wed
5Thu1:596.41:596.28:141.08:190.76:346:06New Moon5Thu
6Fri2:236.62:415.98:490.88:481.06:326:07Waxing Crescent6Fri
7Sat2:506.83:275.59:270.69:191.46:316:08Waxing Crescent7Sat
8Sun3:196.94:215.210:100.49:531.86:296:09Waxing Crescent8Sun
9Mon3:547.05:274.811:000.310:342.26:286:10Waxing Crescent9Mon
10Tue4:366.96:514.612:010.36:266:11First Quarter10Tue
11Wed5:306.98:244.71:120.26:256:12First Quarter11Wed
12Thu6:376.89:375.012:472.82:270.06:236:13First Quarter12Thu
13Fri7:526.910:295.42:192.73:35-0.26:226:14Waxing Gibbous13Fri
14Sat9:067.011:105.83:382.44:32-0.46:206:15Waxing Gibbous14Sat
15Sun10:137.211:476.34:411.95:21-0.56:196:16Waxing Gibbous15Sun
16Mon11:147.25:361.36:06-0.46:176:17Waxing Gibbous16Mon
17Tue12:236.712:127.26:270.86:47-0.26:166:18Full Moon17Tue
18Wed12:587.11:077.07:150.37:280.26:146:19Full Moon18Wed
19Thu1:337.42:016.78:03-0.18:070.66:136:20Full Moon19Thu
20Fri2:087.52:566.38:51-0.38:481.16:116:21Waning Gibbous20Fri
21Sat2:447.53:525.89:39-0.39:301.66:096:22Waning Gibbous21Sat
22Sun3:217.44:545.410:29-0.210:162.16:086:23Waning Gibbous22Sun
23Mon4:027.06:045.111:230.011:102.56:066:24Waning Gibbous23Mon
24Tue4:486.67:254.912:240.26:056:25Third Quarter24Tue
25Wed5:446.28:465.012:232.71:330.46:036:26Third Quarter25Wed
26Thu6:505.99:475.21:502.82:410.46:026:27Third Quarter26Thu
27Fri8:015.810:315.43:062.63:400.46:006:27Third Quarter27Fri
28Sat9:085.711:035.64:062.34:290.45:596:28Waning Crescent28Sat
29Sun10:075.811:305.84:541.95:090.45:576:29Waning Crescent29Sun
30Mon10:585.911:546.05:351.55:430.55:566:30Waning Crescent30Mon
31Tue11:455.96:121.26:140.65:546:31Waning Crescent31Tue
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 3:27 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 71% 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 Waning Gibbous (71% 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