Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 7h 38m at 6:13 am (0.1 ft)
Next high tide : 12:43 pm (4.8 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Oct 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:356.51:346.47:240.57:441.47:056:51New Moon1Sat
2Sun1:176.41:566.67:510.78:171.07:066:50New Moon2Sun
3Mon2:006.32:186.88:181.08:500.77:076:48New Moon3Mon
4Tue2:446.12:417.08:451.49:240.47:086:47New Moon4Tue
5Wed3:305.93:077.29:141.810:020.27:086:45Waxing Crescent5Wed
6Thu4:225.73:367.39:462.210:450.07:096:44Waxing Crescent6Thu
7Fri5:205.44:107.210:212.611:350.07:106:42Waxing Crescent7Fri
8Sat6:315.24:547.111:043.07:116:41Waxing Crescent8Sat
9Sun7:565.15:517.012:340.012:043.27:126:39First Quarter9Sun
10Mon9:205.37:046.81:450.01:373.37:136:38First Quarter10Mon
11Tue10:225.68:266.73:000.03:173.17:146:36First Quarter11Tue
12Wed11:065.99:456.84:08-0.14:332.67:156:35Waxing Gibbous12Wed
13Thu11:436.310:556.85:05-0.25:322.07:166:34Waxing Gibbous13Thu
14Fri12:176.75:53-0.16:241.37:176:32Waxing Gibbous14Fri
15Sat12:507.16:370.17:120.77:186:31Waxing Gibbous15Sat
16Sun12:596.81:227.57:170.57:580.17:196:29Full Moon16Sun
17Mon1:576.61:547.87:561.08:44-0.37:206:28Full Moon17Mon
18Tue2:536.42:267.98:361.59:28-0.57:216:27Full Moon18Tue
19Wed3:516.22:597.89:162.010:13-0.57:226:25Waning Gibbous19Wed
20Thu4:505.93:347.69:592.510:59-0.47:236:24Waning Gibbous20Thu
21Fri5:535.74:127.210:472.911:50-0.27:246:22Waning Gibbous21Fri
22Sat7:035.54:566.811:463.27:256:21Waning Gibbous22Sat
23Sun8:185.55:506.312:460.11:053.37:266:20Third Quarter23Sun
24Mon9:275.66:575.91:510.32:343.27:276:19Third Quarter24Mon
25Tue10:195.78:125.72:580.53:482.97:286:17Third Quarter25Tue
26Wed10:575.99:255.63:570.54:452.57:296:16Third Quarter26Wed
27Thu11:266.010:305.64:460.65:322.17:306:15Waning Crescent27Thu
28Fri11:516.311:275.65:270.76:111.67:316:14Waning Crescent28Fri
29Sat12:146.56:020.96:471.17:326:13Waning Crescent29Sat
30Sun12:195.711:36 AM6.85:331.16:210.76:335:11Waning Crescent30Sun
31Mon12:085.712:007.16:041.46:540.36:345:10New Moon31Mon
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 9:28 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 77% 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 (77% 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