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 3h 28m 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 - Apr 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:057.44:026.29:51-0.39:521.26:537:32Waxing Crescent1Tue
2Wed3:427.34:565.810:37-0.310:361.66:517:33Waxing Crescent2Wed
3Thu4:207.05:535.511:24-0.211:242.06:507:34Waxing Crescent3Thu
4Fri5:016.76:565.212:150.06:487:35Waxing Crescent4Fri
5Sat5:466.38:075.112:202.31:120.36:477:36First Quarter5Sat
6Sun6:405.99:195.11:312.52:150.46:457:36First Quarter6Sun
7Mon7:445.610:185.22:502.53:210.56:447:37First Quarter7Mon
8Tue8:545.411:045.44:022.34:200.66:427:38First Quarter8Tue
9Wed10:025.411:395.75:002.05:090.66:417:39Waxing Gibbous9Wed
10Thu11:015.55:471.75:510.66:397:40Waxing Gibbous10Thu
11Fri12:095.911:54 AM5.66:281.36:280.76:387:41Waxing Gibbous11Fri
12Sat12:376.212:425.77:050.97:020.86:377:42Waxing Gibbous12Sat
13Sun1:056.41:285.87:390.57:340.96:357:43Full Moon13Sun
14Mon1:336.72:135.88:130.28:071.16:347:44Full Moon14Mon
15Tue2:036.92:585.88:48-0.18:421.46:327:45Full Moon15Tue
16Wed2:347.13:465.89:26-0.49:191.66:317:46Full Moon16Wed
17Thu3:097.24:365.610:07-0.59:591.96:297:47Waning Gibbous17Thu
18Fri3:477.25:315.510:52-0.610:462.16:287:48Waning Gibbous18Fri
19Sat4:317.06:315.411:43-0.611:422.36:277:49Waning Gibbous19Sat
20Sun5:236.87:375.412:41-0.56:257:50Third Quarter20Sun
21Mon6:256.48:435.512:532.41:45-0.36:247:51Third Quarter21Mon
22Tue7:386.19:425.82:182.32:51-0.26:237:52Third Quarter22Tue
23Wed8:575.910:346.23:412.03:550.06:217:52Third Quarter23Wed
24Thu10:145.911:196.64:491.44:530.16:207:53Waning Crescent24Thu
25Fri11:245.95:470.85:440.36:197:54Waning Crescent25Fri
26Sat12:007.012:276.06:380.36:310.66:177:55Waning Crescent26Sat
27Sun12:387.31:256.07:25-0.27:160.96:167:56New Moon27Sun
28Mon1:167.52:196.08:09-0.58:001.26:157:57New Moon28Mon
29Tue1:527.53:116.08:51-0.78:431.56:147:58New Moon29Tue
30Wed2:287.44:015.89:33-0.79:261.86:137:59New Moon30Wed
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