Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Saturday, June 6, 2026
The tide is currently falling in Napa, CA.
Next low tide (tomorrow) : in 4h 44m at 1:38 am (2.6 ft)
Next high tide (tomorrow) : 6:18 am (5.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:45 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - May 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:146.010:075.52:163.02:57-0.46:118:01Third Quarter1Wed
2Thu8:375.810:456.03:412.53:56-0.36:108:01Third Quarter2Thu
3Fri9:585.711:206.44:471.84:49-0.16:088:02Waning Crescent3Fri
4Sat11:125.711:537.05:421.15:370.26:078:03Waning Crescent4Sat
5Sun12:215.86:330.36:210.76:068:04Waning Crescent5Sun
6Mon12:277.41:255.87:21-0.47:051.16:058:05New Moon6Mon
7Tue1:027.82:275.88:08-0.97:491.66:048:06New Moon7Tue
8Wed1:388.03:265.88:54-1.38:342.06:038:07New Moon8Wed
9Thu2:168.04:255.89:40-1.49:212.46:028:08New Moon9Thu
10Fri2:567.85:245.710:28-1.310:132.76:018:09Waxing Crescent10Fri
11Sat3:397.46:255.611:17-1.011:122.96:008:10Waxing Crescent11Sat
12Sun4:266.97:275.512:10-0.75:598:11Waxing Crescent12Sun
13Mon5:186.48:275.512:233.01:06-0.45:588:12First Quarter13Mon
14Tue6:175.89:215.61:442.92:05-0.15:578:12First Quarter14Tue
15Wed7:275.310:045.73:032.63:020.25:578:13First Quarter15Wed
16Thu8:434.910:395.94:092.23:540.55:568:14First Quarter16Thu
17Fri9:594.711:076.25:041.74:390.85:558:15Waxing Gibbous17Fri
18Sat11:094.711:336.45:501.25:181.15:548:16Waxing Gibbous18Sat
19Sun12:114.76:300.75:551.55:548:17Waxing Gibbous19Sun
20Mon1:074.87:060.36:291.85:538:18Waxing Gibbous20Mon
21Tue12:226.91:595.07:40-0.17:032.25:528:18Full Moon21Tue
22Wed12:497.12:485.28:13-0.47:382.55:518:19Full Moon22Wed
23Thu1:197.33:365.38:47-0.78:152.75:518:20Full Moon23Thu
24Fri1:527.44:235.39:24-0.98:532.95:508:21Full Moon24Fri
25Sat2:287.45:125.410:04-1.09:363.05:508:22Waning Gibbous25Sat
26Sun3:097.36:025.410:49-1.010:263.15:498:22Waning Gibbous26Sun
27Mon3:557.16:535.411:37-1.011:273.05:498:23Waning Gibbous27Mon
28Tue4:476.87:425.612:29-0.85:488:24Waning Gibbous28Tue
29Wed5:496.38:295.812:432.91:23-0.65:488:25Third Quarter29Wed
30Thu7:025.89:126.22:092.52:18-0.25:478:25Third Quarter30Thu
31Fri8:265.39:526.73:272.03:130.25:478:26Third Quarter31Fri
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 3:58 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 66% 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 Third Quarter (66% 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