Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Napa, CA.
Next low tide : 1:51 pm (0.5 ft)
Next high tide : in 56m at 7:05 am (5.4 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Apr 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:235.911:235.54:182.44:430.36:527:32Waxing Gibbous1Sun
2Mon10:306.011:565.95:121.95:300.26:517:33Waxing Gibbous2Mon
3Tue11:316.25:591.46:130.26:497:34Waxing Gibbous3Tue
4Wed12:296.412:286.46:440.86:530.36:487:35Waxing Gibbous4Wed
5Thu1:016.81:246.57:280.27:340.56:467:36Full Moon5Thu
6Fri1:367.32:196.58:13-0.38:150.86:457:37Full Moon6Fri
7Sat2:127.63:156.39:00-0.78:581.26:437:38Full Moon7Sat
8Sun2:527.84:126.19:49-1.09:431.56:427:39Waning Gibbous8Sun
9Mon3:347.95:125.910:40-1.010:331.96:407:40Waning Gibbous9Mon
10Tue4:217.76:175.611:36-0.911:312.26:397:41Waning Gibbous10Tue
11Wed5:147.37:275.512:37-0.76:377:42Third Quarter11Wed
12Thu6:156.88:385.512:432.41:43-0.46:367:43Third Quarter12Thu
13Fri7:266.39:445.72:102.42:53-0.16:347:44Third Quarter13Fri
14Sat8:435.910:386.03:342.13:570.16:337:44Third Quarter14Sat
15Sun9:595.711:226.34:451.74:540.36:327:45Waning Crescent15Sun
16Mon11:075.75:421.35:420.56:307:46Waning Crescent16Mon
17Tue12:006.512:075.76:310.96:240.76:297:47Waning Crescent17Tue
18Wed12:336.61:005.67:130.57:011.06:277:48Waning Crescent18Wed
19Thu1:026.71:485.67:500.27:361.36:267:49New Moon19Thu
20Fri1:296.82:335.58:240.08:101.66:257:50New Moon20Fri
21Sat1:556.83:165.58:57-0.28:431.86:237:51New Moon21Sat
22Sun2:216.83:585.49:29-0.29:162.16:227:52New Moon22Sun
23Mon2:506.84:415.310:02-0.39:512.36:217:53Waxing Crescent23Mon
24Tue3:226.75:265.110:38-0.310:292.56:197:54Waxing Crescent24Tue
25Wed3:576.56:155.011:18-0.211:122.66:187:55Waxing Crescent25Wed
26Thu4:376.37:085.012:02-0.16:177:56Waxing Crescent26Thu
27Fri5:256.08:055.012:082.712:530.06:167:57First Quarter27Fri
28Sat6:225.78:585.21:202.71:490.16:147:58First Quarter28Sat
29Sun7:325.49:435.52:402.52:480.36:137:59First Quarter29Sun
30Mon8:495.310:246.03:492.13:440.46:128:00First Quarter30Mon
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 10:28 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 49% 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 First Quarter (49% 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