Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Napa, CA.
Next low tide (tomorrow) : 6:12 am (-0.6 ft)
Next high tide : in 5h 54m at 10:22 pm (8.2 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - May 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:025.410:115.22:423.02:530.26:118:00Third Quarter1Mon
2Tue8:165.210:425.53:532.63:470.36:108:01Third Quarter2Tue
3Wed9:305.111:095.84:482.24:330.46:098:02Waning Crescent3Wed
4Thu10:395.111:356.25:331.65:140.66:088:03Waning Crescent4Thu
5Fri11:425.26:131.05:530.96:078:04Waning Crescent5Fri
6Sat12:016.612:425.36:500.46:301.26:058:05Waning Crescent6Sat
7Sun12:297.01:405.57:29-0.27:081.66:048:06New Moon7Sun
8Mon12:597.42:375.68:09-0.87:481.96:038:07New Moon8Mon
9Tue1:337.83:345.68:52-1.28:312.36:028:08New Moon9Tue
10Wed2:118.04:315.69:39-1.49:172.66:018:09Waxing Crescent10Wed
11Thu2:558.05:315.610:29-1.510:092.86:008:10Waxing Crescent11Thu
12Fri3:447.86:325.511:23-1.311:102.96:008:11Waxing Crescent12Fri
13Sat4:397.47:345.612:22-1.15:598:11Waxing Crescent13Sat
14Sun5:426.88:325.812:282.91:24-0.85:588:12First Quarter14Sun
15Mon6:556.29:256.01:582.62:27-0.45:578:13First Quarter15Mon
16Tue8:165.610:106.43:222.23:26-0.15:568:14First Quarter16Tue
17Wed9:395.310:506.84:331.64:190.35:558:15Waxing Gibbous17Wed
18Thu10:585.111:267.15:320.95:070.85:548:16Waxing Gibbous18Thu
19Fri12:095.16:230.35:511.25:548:17Waxing Gibbous19Fri
20Sat1:125.27:07-0.16:331.75:538:18Waxing Gibbous20Sat
21Sun12:307.42:095.37:47-0.57:132.15:528:18Full Moon21Sun
22Mon1:007.43:025.48:25-0.77:532.55:528:19Full Moon22Mon
23Tue1:307.43:515.49:00-0.88:332.75:518:20Full Moon23Tue
24Wed2:017.24:375.49:36-0.89:132.95:508:21Full Moon24Wed
25Thu2:347.15:225.310:13-0.79:553.05:508:22Waning Gibbous25Thu
26Fri3:106.96:065.310:51-0.610:393.15:498:22Waning Gibbous26Fri
27Sat3:496.66:515.211:32-0.411:323.15:498:23Waning Gibbous27Sat
28Sun4:326.27:355.212:16-0.35:488:24Waning Gibbous28Sun
29Mon5:215.88:165.412:373.01:02-0.15:488:25Third Quarter29Mon
30Tue6:195.38:535.61:532.81:490.25:478:25Third Quarter30Tue
31Wed7:284.99:265.93:052.52:370.55:478:26Third 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 2:17 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 spring phase. Tonight's moon is 18% 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 maximum.

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 Waning Crescent (18% illuminated). This places Napa, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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