Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Napa, CA.
Next low tide : 4:22 pm (2.7 ft)
Next high tide : in 3h 46m at 12:00 pm (4.9 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Oct 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:376.43:187.79:251.510:14-0.27:056:51Waning Gibbous1Sat
2Sun4:376.03:547.810:042.011:06-0.47:066:49Waning Gibbous2Sun
3Mon5:455.74:377.810:482.57:076:48Waning Gibbous3Mon
4Tue7:035.45:297.612:05-0.311:43 AM2.97:086:46Third Quarter4Tue
5Wed8:315.46:357.21:14-0.21:013.27:096:45Third Quarter5Wed
6Thu9:495.67:536.92:31-0.12:403.27:106:43Third Quarter6Thu
7Fri10:485.99:136.83:46-0.14:062.87:116:42Third Quarter7Fri
8Sat11:336.310:266.84:50-0.15:122.37:126:40Waning Crescent8Sat
9Sun12:116.65:410.06:071.87:136:39Waning Crescent9Sun
10Mon12:446.86:250.16:541.37:146:37Waning Crescent10Mon
11Tue12:276.61:157.07:030.47:360.87:146:36New Moon11Tue
12Wed1:196.41:427.17:380.88:160.57:156:34New Moon12Wed
13Thu2:096.22:087.28:101.28:530.37:166:33New Moon13Thu
14Fri2:586.02:327.28:431.79:290.17:176:31New Moon14Fri
15Sat3:475.82:567.19:152.110:050.07:186:30Waxing Crescent15Sat
16Sun4:385.63:227.09:482.610:440.17:196:29Waxing Crescent16Sun
17Mon5:335.43:536.810:242.911:260.27:206:27Waxing Crescent17Mon
18Tue6:355.24:306.611:053.27:216:26Waxing Crescent18Tue
19Wed7:505.15:186.312:150.312:043.47:226:25First Quarter19Wed
20Thu9:085.26:196.01:140.51:403.47:236:23First Quarter20Thu
21Fri10:045.37:325.82:210.53:123.37:246:22First Quarter21Fri
22Sat10:415.68:475.73:250.54:162.97:256:21First Quarter22Sat
23Sun11:105.89:565.84:180.45:042.47:266:19Waxing Gibbous23Sun
24Mon11:356.210:596.05:030.45:451.97:276:18Waxing Gibbous24Mon
25Tue12:016.65:430.56:241.37:286:17Waxing Gibbous25Tue
26Wed12:277.06:200.77:030.67:296:16Waxing Gibbous26Wed
27Thu12:536.212:557.46:571.07:430.07:306:14Full Moon27Thu
28Fri1:506.21:267.87:341.48:26-0.67:316:13Full Moon28Fri
29Sat2:476.22:008.18:141.89:11-0.97:336:12Full Moon29Sat
30Sun3:466.12:388.38:562.310:00-1.17:346:11Waning Gibbous30Sun
31Mon4:486.03:218.29:422.610:53-1.17:356:10Waning Gibbous31Mon
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 2:11 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 18% 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 Waning Crescent (18% 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