Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 1h 59m at 10:13 am (-1.1 ft)
Next high tide : 4:50 pm (6.5 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Jan 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:417.58:594.91:131.33:010.77:255:00First Quarter1Tue
2Wed8:357.810:235.12:191.84:070.27:265:00Waxing Gibbous2Wed
3Thu9:298.011:295.53:252.15:01-0.37:265:01Waxing Gibbous3Thu
4Fri10:238.24:252.35:49-0.67:265:02Waxing Gibbous4Fri
5Sat12:235.811:11 AM8.35:252.36:37-0.87:265:03Full Moon5Sat
6Sun1:116.111:59 AM8.26:192.37:19-0.97:265:04Full Moon6Sun
7Mon1:536.312:418.07:072.38:01-0.97:255:05Full Moon7Mon
8Tue2:356.41:237.77:552.28:37-0.77:255:06Full Moon8Tue
9Wed3:176.42:117.38:432.29:13-0.47:255:07Waning Gibbous9Wed
10Thu3:536.42:536.79:312.19:49-0.17:255:08Waning Gibbous10Thu
11Fri4:236.43:356.210:192.010:250.37:255:09Waning Gibbous11Fri
12Sat4:596.44:235.511:132.011:010.87:255:10Waning Gibbous12Sat
13Sun5:356.45:174.912:131.97:245:11Third Quarter13Sun
14Mon6:176.56:294.51:191.77:245:12Third Quarter14Mon
15Tue6:596.58:054.212:311.82:251.47:245:13Third Quarter15Tue
16Wed7:416.79:414.41:252.23:311.17:235:14Third Quarter16Wed
17Thu8:356.910:534.72:312.54:190.77:235:15Waning Crescent17Thu
18Fri9:237.111:415.13:312.65:070.37:225:16Waning Crescent18Fri
19Sat10:117.44:312.75:43-0.17:225:17Waning Crescent19Sat
20Sun12:235.410:53 AM7.65:192.66:25-0.47:215:18Waning Crescent20Sun
21Mon12:595.711:41 AM7.86:012.57:01-0.77:215:19New Moon21Mon
22Tue1:356.012:237.96:432.37:37-0.87:205:21New Moon22Tue
23Wed2:056.21:117.97:312.18:13-0.87:195:22New Moon23Wed
24Thu2:416.51:537.78:131.88:49-0.77:195:23New Moon24Thu
25Fri3:176.72:477.29:071.69:31-0.47:185:24Waxing Crescent25Fri
26Sat3:537.03:416.710:011.310:130.17:175:25Waxing Crescent26Sat
27Sun4:357.24:416.011:011.110:550.77:175:26Waxing Crescent27Sun
28Mon5:237.45:535.312:071.07:165:27First Quarter28Mon
29Tue6:117.47:234.91:250.77:155:28First Quarter29Tue
30Wed7:057.58:594.912:491.82:430.47:145:30First Quarter30Wed
31Thu8:057.610:175.22:012.23:490.17:135:31Waxing Gibbous31Thu
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 1:31 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 spring phase. Tonight's moon is 8% 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 Crescent (8% 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