Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Napa, CA.
Next low tide : 1:01 pm (-0.2 ft)
Next high tide : in 2h 13m at 5:55 am (6.2 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Mar 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:307.01:197.67:310.87:56-0.46:406:02New Moon1Sat
2Sun2:087.22:117.28:200.58:380.06:396:03New Moon2Sun
3Mon2:467.43:046.79:100.49:190.56:376:04Waxing Crescent3Mon
4Tue3:247.44:006.110:020.310:031.06:366:05Waxing Crescent4Tue
5Wed4:057.25:015.610:560.410:501.56:346:06Waxing Crescent5Wed
6Thu4:487.06:115.111:550.511:452.06:336:07First Quarter6Thu
7Fri5:366.77:354.91:020.66:316:08First Quarter7Fri
8Sat6:326.49:005.012:542.32:140.66:306:09First Quarter8Sat
9Sun8:356.211:075.23:132.54:200.67:287:10First Quarter9Sun
10Mon9:406.211:555.44:252.45:170.57:277:11Waxing Gibbous10Mon
11Tue10:396.25:232.36:030.47:257:12Waxing Gibbous11Tue
12Wed12:325.611:30 AM6.36:112.06:420.37:247:13Waxing Gibbous12Wed
13Thu1:035.812:166.46:521.77:160.37:227:14Waxing Gibbous13Thu
14Fri1:316.012:596.47:291.57:460.37:217:15Full Moon14Fri
15Sat1:566.21:396.48:031.28:150.47:197:16Full Moon15Sat
16Sun2:226.32:206.38:361.08:440.67:187:17Full Moon16Sun
17Mon2:496.53:016.29:100.79:140.87:167:18Full Moon17Mon
18Tue3:176.73:446.09:460.59:461.17:157:19Waning Gibbous18Tue
19Wed3:486.84:315.710:250.310:211.47:137:20Waning Gibbous19Wed
20Thu4:216.95:255.411:100.211:011.77:117:21Waning Gibbous20Thu
21Fri5:006.96:295.112:010.17:107:21Waning Gibbous21Fri
22Sat5:476.87:454.91:010.17:087:22Third Quarter22Sat
23Sun6:456.79:065.012:512.42:110.17:077:23Third Quarter23Sun
24Mon7:556.610:165.32:132.53:230.07:057:24Third Quarter24Mon
25Tue9:106.611:115.73:392.34:29-0.17:047:25Waning Crescent25Tue
26Wed10:226.711:566.24:511.95:26-0.27:027:26Waning Crescent26Wed
27Thu11:286.85:511.46:16-0.27:017:27Waning Crescent27Thu
28Fri12:376.612:286.96:440.97:02-0.16:597:28Waning Crescent28Fri
29Sat1:156.91:246.97:330.47:460.16:587:29New Moon29Sat
30Sun1:527.22:176.88:200.08:280.46:567:30New Moon30Sun
31Mon2:297.43:106.59:06-0.29:090.86:557:31New 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 38% 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 First Quarter (38% 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