Tides Today & Tomorrow in Napa, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Napa, CA.
Next low tide : in 3h 41m at 12:05 pm (0.1 ft)
Next high tide : 6:49 pm (6.3 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415623
Common Questions About Tides

Napa, CA Tides - Apr 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:176.212:295.96:460.86:440.85:526:32New Moon1Wed
2Thu12:426.51:135.87:180.57:141.15:516:33New Moon2Thu
3Fri1:076.81:585.77:520.17:441.45:496:34New Moon3Fri
4Sat1:357.02:455.68:27-0.18:171.75:486:35New Moon4Sat
5Sun3:057.14:365.410:06-0.39:532.06:467:36Waxing Crescent5Sun
6Mon3:407.25:325.210:50-0.410:342.36:457:37Waxing Crescent6Mon
7Tue4:207.16:365.011:41-0.411:242.56:437:38Waxing Crescent7Tue
8Wed5:086.97:475.012:39-0.46:427:39First Quarter8Wed
9Thu6:076.78:585.112:302.71:45-0.36:407:40First Quarter9Thu
10Fri7:196.49:585.41:572.72:55-0.26:397:41First Quarter10Fri
11Sat8:396.210:465.83:252.44:00-0.26:387:41First Quarter11Sat
12Sun9:576.111:276.34:381.84:56-0.16:367:42Waxing Gibbous12Sun
13Mon11:096.15:381.25:460.16:357:43Waxing Gibbous13Mon
14Tue12:056.812:146.26:300.56:310.46:337:44Waxing Gibbous14Tue
15Wed12:417.21:146.27:190.07:140.76:327:45Full Moon15Wed
16Thu1:167.52:116.18:05-0.57:561.16:307:46Full Moon16Thu
17Fri1:527.63:066.08:49-0.78:381.56:297:47Full Moon17Fri
18Sat2:277.63:595.89:33-0.89:211.96:287:48Full Moon18Sat
19Sun3:037.54:535.610:16-0.810:062.26:267:49Waning Gibbous19Sun
20Mon3:417.25:495.411:01-0.610:542.56:257:50Waning Gibbous20Mon
21Tue4:216.86:485.211:49-0.411:512.76:247:51Waning Gibbous21Tue
22Wed5:066.37:525.112:41-0.16:227:52Waning Gibbous22Wed
23Thu5:595.98:535.11:022.81:380.16:217:53Third Quarter23Thu
24Fri7:015.59:455.32:232.72:380.46:207:54Third Quarter24Fri
25Sat8:135.110:265.53:372.43:350.56:187:55Third Quarter25Sat
26Sun9:275.010:585.74:372.04:250.76:177:56Third Quarter26Sun
27Mon10:355.011:266.05:261.65:090.86:167:57Waning Crescent27Mon
28Tue11:365.011:536.36:081.15:471.06:157:57Waning Crescent28Tue
29Wed12:315.26:450.66:241.36:137:58Waning Crescent29Wed
30Thu12:216.71:225.37:200.26:591.56:127:59Waning Crescent30Thu
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 3:27 pm — 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 71% 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 Waning Gibbous (71% 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