Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 6h 25m at 5:45 am (0.3 ft)
Next high tide : 12:39 pm (5.1 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Oct 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:195.84:007.010:041.810:530.47:066:50Waxing Crescent1Thu
2Fri5:135.54:347.010:402.211:410.37:066:49Waxing Crescent2Fri
3Sat6:195.35:156.911:232.67:076:47Waxing Crescent3Sat
4Sun7:395.16:086.812:390.312:213.07:086:46First Quarter4Sun
5Mon9:055.27:166.71:470.21:443.17:096:44First Quarter5Mon
6Tue10:165.58:336.73:000.13:173.07:106:43First Quarter6Tue
7Wed11:075.99:496.94:09-0.14:322.67:116:41Waxing Gibbous7Wed
8Thu11:496.310:577.15:08-0.25:312.17:126:40Waxing Gibbous8Thu
9Fri12:266.75:59-0.26:231.57:136:38Waxing Gibbous9Fri
10Sat1:027.06:45-0.17:120.97:146:37Full Moon10Sat
11Sun12:587.21:367.47:280.18:000.47:156:35Full Moon11Sun
12Mon1:547.12:117.68:090.58:470.07:166:34Full Moon12Mon
13Tue2:506.82:467.78:501.09:33-0.27:176:32Full Moon13Tue
14Wed3:476.53:217.79:321.510:21-0.37:186:31Waning Gibbous14Wed
15Thu4:456.23:587.510:162.011:09-0.27:196:30Waning Gibbous15Thu
16Fri5:485.94:387.211:052.57:206:28Waning Gibbous16Fri
17Sat6:595.65:236.712:02-0.112:052.97:216:27Third Quarter17Sat
18Sun8:165.66:176.31:010.21:233.17:226:25Third Quarter18Sun
19Mon9:295.77:235.92:060.42:493.17:236:24Third Quarter19Mon
20Tue10:265.88:375.83:130.54:022.87:246:23Third Quarter20Tue
21Wed11:096.09:475.74:140.54:582.57:256:21Third Quarter21Wed
22Thu11:426.210:475.85:040.65:442.17:266:20Waning Crescent22Thu
23Fri12:106.35:450.66:241.77:276:19Waning Crescent23Fri
24Sat12:356.56:210.76:591.37:286:18Waning Crescent24Sat
25Sun12:295.912:596.76:530.97:320.97:296:16Waning Crescent25Sun
26Mon1:156.01:236.97:241.18:050.57:306:15New Moon26Mon
27Tue2:006.01:487.17:541.48:370.27:316:14New Moon27Tue
28Wed2:465.92:157.38:251.79:12-0.17:326:13New Moon28Wed
29Thu3:345.82:457.48:592.19:51-0.37:336:12Waxing Crescent29Thu
30Fri4:265.73:187.49:352.410:34-0.47:346:10Waxing Crescent30Fri
31Sat5:235.63:577.310:172.711:23-0.47:356:09Waxing Crescent31Sat
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 9:12 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 transitional phase. Tonight's moon is 72% 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 Waxing Gibbous (72% 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