Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Monday, June 8, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 3:53 am (1.6 ft)
Next high tide : in 6h 11m at 9:03 pm (6.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:45 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Oct 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:276.92:267.78:291.09:100.07:056:52Full Moon1Wed
2Thu3:196.63:027.69:101.49:54-0.17:056:50Waning Gibbous2Thu
3Fri4:126.33:387.59:521.810:390.07:066:49Waning Gibbous3Fri
4Sat5:076.04:167.210:362.211:270.17:076:47Waning Gibbous4Sat
5Sun6:065.74:576.911:262.57:086:46Waning Gibbous5Sun
6Mon7:115.45:456.512:190.412:272.87:096:44Third Quarter6Mon
7Tue8:225.46:426.11:180.61:432.97:106:43Third Quarter7Tue
8Wed9:295.47:495.92:230.73:012.87:116:41Third Quarter8Wed
9Thu10:215.68:595.83:270.84:072.57:126:40Third Quarter9Thu
10Fri11:015.810:045.84:220.85:012.27:136:38Waning Crescent10Fri
11Sat11:336.111:025.95:080.85:451.87:146:37Waning Crescent11Sat
12Sun12:016.35:480.96:241.47:156:35Waning Crescent12Sun
13Mon12:286.66:231.07:001.07:166:34Waning Crescent13Mon
14Tue12:426.112:566.96:561.17:340.67:176:33New Moon14Tue
15Wed1:296.21:247.27:291.38:090.27:186:31New Moon15Wed
16Thu2:166.21:557.48:031.68:46-0.17:196:30New Moon16Thu
17Fri3:046.12:287.68:391.89:26-0.37:206:28New Moon17Fri
18Sat3:546.03:057.69:172.110:10-0.57:216:27Waxing Crescent18Sat
19Sun4:475.93:477.610:012.310:59-0.57:226:26Waxing Crescent19Sun
20Mon5:465.74:357.410:512.511:54-0.47:236:24Waxing Crescent20Mon
21Tue6:495.75:327.111:542.77:246:23First Quarter21Tue
22Wed7:555.76:406.712:55-0.21:142.77:256:22First Quarter22Wed
23Thu8:585.97:586.42:010.02:432.57:266:20First Quarter23Thu
24Fri9:536.39:186.23:080.24:012.07:276:19First Quarter24Fri
25Sat10:406.710:336.24:090.35:041.47:286:18Waxing Gibbous25Sat
26Sun11:227.111:406.25:030.55:580.87:296:16Waxing Gibbous26Sun
27Mon12:017.55:520.86:470.37:306:15Waxing Gibbous27Mon
28Tue12:416.312:387.76:371.17:31-0.17:316:14Full Moon28Tue
29Wed1:376.31:137.87:201.48:13-0.47:326:13Full Moon29Wed
30Thu2:306.31:487.88:021.88:54-0.57:336:12Full Moon30Thu
31Fri3:216.22:237.68:442.19:34-0.57:346:11Full Moon31Fri
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 12:28 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 neap phase. Tonight's moon is 46% 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 minimum.

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 Third Quarter (46% illuminated). This places Napa, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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