Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 5:24 am (0.5 ft)
Next high tide : in 4h 44m at 9:53 pm (7.2 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:46 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Oct 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:345.65:147.811:282.77:046:52Third Quarter1Mon
2Tue7:585.56:157.412:54-0.312:393.17:056:51Third Quarter2Tue
3Wed9:215.67:287.02:09-0.12:133.17:066:49Third Quarter3Wed
4Thu10:275.98:476.73:250.03:432.97:076:48Third Quarter4Thu
5Fri11:166.110:016.64:310.14:522.57:086:46Waning Crescent5Fri
6Sat11:566.411:066.55:250.15:482.07:096:45Waning Crescent6Sat
7Sun12:306.66:090.36:351.67:106:43Waning Crescent7Sun
8Mon12:026.41:006.76:460.57:161.27:116:42Waning Crescent8Mon
9Tue12:526.31:256.87:190.87:530.87:126:40New Moon9Tue
10Wed1:396.11:486.97:491.28:280.67:136:39New Moon10Wed
11Thu2:246.02:107.08:181.69:010.47:146:37New Moon11Thu
12Fri3:095.82:317.08:472.09:330.27:156:36New Moon12Fri
13Sat3:545.62:557.09:162.310:070.27:166:34Waxing Crescent13Sat
14Sun4:425.43:236.99:462.710:450.27:166:33Waxing Crescent14Sun
15Mon5:365.23:566.810:193.011:280.37:176:31Waxing Crescent15Mon
16Tue6:385.14:366.610:583.27:186:30Waxing Crescent16Tue
17Wed7:535.05:276.312:190.311:55 AM3.47:196:29First Quarter17Wed
18Thu9:075.16:326.11:210.41:283.47:206:27First Quarter18Thu
19Fri10:005.37:476.02:280.43:053.27:216:26First Quarter19Fri
20Sat10:375.69:036.03:300.34:122.87:226:24First Quarter20Sat
21Sun11:076.010:146.14:240.25:032.27:236:23Waxing Gibbous21Sun
22Mon11:366.411:196.35:100.35:501.57:246:22Waxing Gibbous22Mon
23Tue12:056.95:530.46:340.77:256:20Waxing Gibbous23Tue
24Wed12:216.412:357.56:330.87:190.07:266:19Full Moon24Wed
25Thu1:226.41:087.97:141.28:05-0.67:276:18Full Moon25Thu
26Fri2:216.41:448.37:551.68:52-1.07:286:17Full Moon26Fri
27Sat3:216.32:238.58:382.19:41-1.27:306:15Waning Gibbous27Sat
28Sun4:226.23:068.49:252.510:34-1.27:316:14Waning Gibbous28Sun
29Mon5:266.03:548.110:172.811:30-0.97:326:13Waning Gibbous29Mon
30Tue6:335.94:497.611:203.07:336:12Waning Gibbous30Tue
31Wed7:435.85:527.012:32-0.612:403.17:346:11Third Quarter31Wed
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 1:38 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 69% 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 (69% 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